MEDSI2018 - List of Keywords (alignment)

Paper	Title	Other Keywords	Page
TUOPMA04	Apple II Insertion Devices Made at MAXIV	undulator, MMI, operation, polarization	6
	A. Thiel, M. Ebbeni, H. Tarawneh MAX IV Laboratory, Lund University, Lund, Sweden
	At present five Apple II insertion devices were made and installed at MAX IV, three of them in the 1.5GeV-ring, and two in the 3GeV-ring. The assembly of the last one of a total number of six Apple II undulators made at MAX IV is currently going on. The undulators have period lengths of 48mm (two devices), 53mm, 58mm, 84mm and 95.2mm. The operational gap range of the 3GeV devices is between 11mm and 150mm, the range of the 1.5GeV devices is 14mm to 150mm. Structural analysis was applied to assure a minimum deflection of the main frame and the magnet array girders. The main frame is made of nodular cast iron, while the girders are made of aluminium alloy. In order to optimize the magnetic tuning the position of the magnet keepers can be adjusted by wedges. The undulators were fiducialized before the installation in the ring tunnel and were aligned in the straight section using their magnetic centre as reference. All MAX IV made undulators have three feet with vertical adjustment and separate horizontal adjusters. This paper describes the design, assembly, shimming and installation of the MAX IV Apple II devices in more detail.
	Slides TUOPMA04 [12.328 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUOPMA04
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOPMA08	Deformable RF Fingers with Axial Extension	vacuum, operation, GUI, experiment	15
	S.K. Sharma, F.A. DePaola, F.C. Lincoln, J.L. Tuozzolo BNL, Upton, Long Island, New York, USA
	RF fingers in a bellows assembly provide electrical continuity for the image current between adjacent vacuum chambers. They are required to absorb all misalignments between the two chambers while minimizing abrupt changes in the beam aperture. In addition, during bake-outs of the chambers the fingers are required to accommodate their large thermal expansions. The latter is achieved either by having a sliding-contact finger design or a deformable finger design. In this paper we describe a version of the deformable finger design which permits large compression, significant misalignments and axial extension. A novel method of fingers' fabrication, FE analysis and test results are presented.
	Slides TUOPMA08 [9.954 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUOPMA08
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH01	Installation and Alignment of SESAME Storage Ring	storage-ring, vacuum, dipole, MMI	20
	T.H. Abu-Hanieh SESAME, Allan, Jordan
	SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is the first international 3rd generation synchrotron light source in the Middle East region. This paper presents the method used for installing the Storage ring girders, magnets, vacuum chambers, straight sections, and how the alignment was done. The Installation have been done in a short time with few staff. It was hard and difficult, but went great. A substantial progress has been made in the design, construction and installation of the SESAME Mechanical Systems. All Storage Ring accelerator systems are ready and commissioned.
	Poster TUPH01 [2.697 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH01
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH09	Friction Stir Welding and Copper-Chromium Zirconium: a New Concept for the Design of Sirius' High-Power Absorbers	vacuum, synchrotron, operation, undulator	39
	G.V. Claudiano, P.T. Fonseca, L.M. Volpe LNLS, Campinas, Brazil E.B. Fonseca, M. H. S. Silva LNNano, Campinas, Brazil
	Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC) Sirius, the new Brazilian fourth-generation synchrotron light source, is currently under construction. Due to the high brilliance and low emittance of its source, the pho-ton beam on each undulator beamline can have power densities as high as 55 W/mrad². To protect the compo-nents downstream, the Front-End power absorbers need to manage this power in a limited space, but also having precision in alignment and being reliable all over their lifetime. To achieve this behaviour, the selected alloy was the copper-chromium-zirconium (CuCrZr, commercially known as C18150) because of improved thermal and mechanical properties. In order to seal the vacuum cham-ber (path on which the cooling water flows), friction stir welding was the selected joining method. During the welding process, the material passes through a grain re-finement process which results in a high-resistance joint. The manufacturing process could also result on a reduc-tion of costs and lead times. Finally, it will be presented the final versions of the component with its support and the characterizations done to validate the welded joint under vacuum and water pressure requirements.
	Poster TUPH09 [2.987 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH09
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH11	Retractable Absorber (Mask) and White Beam Imager Diagnostic for Canted Straight Section	insertion, photon, radiation, operation	45
	J. Da Silva Castro, N. Béchu, C. Herbeaux, N. Hubert, N. Jobert, M. Labat, F. Lepage, A. Mary, K.T. Tavakoli SOLEIL, Gif-sur-Yvette, France
	At the SOLEIL synchrotron, as in other accelerators, two canted sources can coexist on the same straight section for space and economic reasons. For its two long beamlines (ANATOMIX source upstream and NANOSCOPIUM source downstream) SOLEIL has made the choice to equip one of his long straight section with two canted insertion devices capable to operate simultaneously. That implies to take into account the degradation risk management of equipment, due to radiation. As the beam power deposition from the upstream undulator can seriously degrade the downstream one, or even other equipment. To handle these risks, Soleil first designed and installed in 2016 a retractable vertical absorber between both insertions to protect the downstream source from the upstream one. In 2017, Soleil then designed and installed a white beam imager, redundant an existing photon beam monitor (XBPM), to verify the correct positioning / alignment of equipment and beams relative to each other. For the vertical absorber as for the white beam imager Soleil had to meet some interesting technological and manufacturing aspects that we propose to present in a poster.
	Poster TUPH11 [3.744 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH11
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH13	Mechanical Design Challenges Building a Prototype 8-Pole Corrector Magnet	quadrupole, vacuum, dipole, octupole	50
	F.A. DePaola, R. Faussete, S.K. Sharma, C.J. Spataro BNL, Upton, Long Island, New York, USA A.K. Jain, M.S. Jaski ANL, Argonne, Illinois, USA
	An innovative design was developed for an 8-pole corrector magnet for the APS upgrade program. This is a combined function magnet consisting of horizontal and vertical correctors as well as a skew quadrupole. This paper describes technical challenges presented by both the magnetic design and the interface constraints for the magnet. A prototype magnet was built, and extensive testing on the magnet confirmed that all magnetic and mechanical requirements were achieved. Improvements were identified during the manufacturing and testing of the prototype magnet. The final design of the magnet which has incorporated these improvements is discussed in the paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH13
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH23	Field Quality From Tolerance Analyses in Two-Half Sextuple Magnet	sextupole, factory, multipole, lattice	78
	J. Liu, R.J. Dejus, A.T. Donnelly, C.L. Doose, A.K. Jain, M.S. Jaski ANL, Argonne, Illinois, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357 Sextupole magnets are used extensively in particle ac-celerators, synchrotrons, and storage rings. Good magnet-ic field quality is needed in these magnets, which requires machining the magnet parts to high precision and is the primary driver of the high fabrication costs. To minimize the fabrication costs, a magnetic field quality study from tolerance analyses was conducted. In this paper, finite element analysis (FEA) using OPERA was performed to identify key geometric factors that affect the magnetic field quality and identify the allowable range for these factors. Next, geometric and dimensional tolerance stack-up analyses are carried out using Teamcenter Variation Analysis to optimize the allocation of the geometric tol-erances to parts and assemblies. Finally, the analysis re-sults are compared to magnetic measurements of a R&D sextupole magnet.
	Poster TUPH23 [1.027 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH23
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH27	Structure Design of a Multi-Wire Target	vacuum, target, controls, neutron	92
	X.J. Nie, H.Y. He, L. Kang, L. Liu, G.Y. Wang, T.G. Xu, D.H. Zhu IHEP, Beijing, People's Republic of China J.X. Chen, C.J. Ning, J.L. Sun, A.X. Wang, J.B. Yu, Y.J. Yu, J.S. Zhang CSNS, Guangdong Province, People's Republic of China
	Introduce a structure design of a Multi-Wire Target. The plan of wire alignment was decided by analysis. The wire tightening device with interlaced alignment was used to solve the wire alignment in narrow space. The vacuum chamber was designed by optimization. The displacement pickup was used to make the movement control of translation stages.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH27
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEOAMA04	The Design of Exactly-Constrained X-Ray Mirror Systems for Sirius	vacuum, operation, coupling, feedback	173
	R.R. Geraldes, G.V. Claudiano, V.Z. Ferreira, L. Sanfelici, A. Sikorski, M.S. Souza, H.C.N. Tolentino, L.M. Volpe, H. Westfahl Jr. LNLS, Campinas, Brazil
	Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC) The first set of Sirius beamlines is expected to start operating in early 2019. Regarding X-ray mirror sys-tems, a single design concept has been possible thanks to the standardization of side-bounce fixed-shape mirrors. To preserve the extreme quality of both the mirror figures and the source, the main design targets were minimizing mechanical and thermal distortions in the mirrors while maximizing mechanical and thermal stabilities. A deterministic high-resolution exactly-constrained flexure-based mirror support provides pitch tuning within 100 nrad and resonances above 150 Hz, while dealing with clamping and thermal ex-pansion effects. The adopted cooling strategy was indirect cryocooling via cryostats, drastically minimiz-ing thermal gradients and distortions in the mirrors, decoupling vibration sources and simplifying cooling circuits. Finally, a 5-degree-of-freedom granite bench, based on high-resolution levellers and air-bearing solutions, support the vacuum chamber, on which the internal mechanics is stiffly mounted. The specifica-tions, design and partial results are presented.
	Slides WEOAMA04 [6.607 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA04
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEOPMA04	Mechanical Design of a New Precision Alignment Apparatus for Compact X-ray Compound Refractive Lens Manipulator	HOM, detector, GUI, operation	168
	D. Shu, J.W.J. Anton, L. Assoufid, W.C. Grizolli, Z. Islam, S.P. Kearney, P. Kenesei, S.D. Shastri, X. Shi ANL, Argonne, Illinois, USA J.W.J. Anton University of Illinois at Chicago, Chicago, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357. A prototype of compact x-ray compound refractive lens (CRL) manipulator system has been developed at the Argonne National Laboratory for dark-field imaging of multi-scale structures. This novel full-field imaging modality uses Bragg peaks to reconstruct 3D distribution of mesoscopic and microscopic structures that govern the behavior of functional materials, in particular, thermodynamic phase transitions in magnetic systems. At the heart of this microscopy technique is a CRL-based x-ray objective lens* with an easily adjustable focal length to isolate any region of interest, typically in the energy range of 5-100 keV or higher, with high precision positional and angular reproducibility. Since the x-ray CRL manipulator system for this technique will be implemented on a high-resolution diffractometer detector arm that rotates during diffraction studies, compactness and system stability, along with the ability to change focal length (zooming), became key design requirements for this new CRL manipulator system. The mechanical design of the compact x-ray CRL manipulator system, as well as finite element analyses for its precision alignment apparatus are described in this paper. * http://www.rxoptics.de/intro.html
	Slides WEOPMA04 [4.189 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA04
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH08	Application of Remote Installation and Measurement Smart Vehicle in Accelerator	monitoring, controls, radiation, operation	217
	J.X. Chen, H.Y. He, C.J. Ning, A.X. Wang, Y.J. Yu, J.S. Zhang, D.H. Zhu CSNS, Guangdong Province, People's Republic of China L. Kang, L. Liu, X.J. Nie, G.Y. Wang, J.B. Yu IHEP, Beijing, People's Republic of China
	Funding: National Natural Science Foundation of China, No.11375217 The installation, alignment measurement and vibration monitoring of the accelerator equipment are cumbersome. In order to reduce the work intensity and exposure time of personnel, this paper has developed a smart vehicle that can automatically walk and automatically adjust the horizontal in the accelerator or beam line area. The smart vehicle can move forwards, sideways, oblique lines, rotations and combinations, and can automatically adjust the level according to different terrains. The auto-leveling accuracy is better than 0.001 degrees. By installing vibration measuring equipment or collimating equipment on the vehicle platform, vibration testing and collimation measurement of the equipment in the accelerator or beamline device can be performed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH08
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH18	Operation Status of HLS System Installed to Measure Ground Change of Large Scientific Equipment in Real Time	FEL, linac, real-time, survey	245
	H. J. Choi, J.H. Han, H.-S. Kang, S.H. Kim, S.N. Kim, H.-G. Lee, S.B. Lee PAL, Pohang, Kyungbuk, Republic of Korea
	Several parts that comprise the large scientific equipment should be installed and operated at precise three-dimensional location coordinates X, Y, and Z through survey and alignment to ensure their optimal performance. As time goes by, however, the ground goes through uplift and subsidence, which consequently changes the coordinates of installed components and leads to alignment errors. As a result, the system parameters change, and the performance of the large scientific equipment deteriorates accordingly. Measuring the change in locations of systems comprising the large scientific equipment in real time would make it possible to predict alignment errors, locate any region with greater changes, realign components in the region fast, and shorten the time of survey and alignment. For this purpose, a WPS's (wire position sensor) are installed in undulator section and a HLS's (hydrostatic leveling sensor) are installed in PAL-XFEL building. This paper is designed to introduce performance enhancements to reduce observed phenomena and measurement errors in the HLS system operation process.
	Poster WEPH18 [2.958 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH18
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH22	Le Guide for Support: A Cookbook for Modeling of Accelerator Structures*	damping, storage-ring, SRF, synchrotron	252
	C.A. Preissner, S.J. Izzo, Z. Liu, J. Nudell ANL, Argonne, Illinois, USA
	Funding: * Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02- 06CH11357. The Advanced Photon Source-Upgrade (APS-U) project has stringent specifications and a 12 month installation schedule. Some form of these constraints appear to be common at all multi-bend achromat upgrade projects. At the APS-U, no full tests will be made of the final accelerator support design. The evaluation of the final design against the specifications will be based primarily on computer simulations using virtual inputs. Insuring that the final designs meet specifications solely based on simulations is much like cooking a complex, multi-course meal without a trial run. Producing a successful meal on the first try requires a prior understanding of the ingre-dients, techniques, and interactions between the constituents. A good cookbook can be essential in providing this under-standing. Likewise, producing an accelerator support final design that meets the requirements requires a prior under-standing of the materials, components, techniques, and interactions between them. This poster describes a cookbook-style approach that any design team can use to confidently predict important characteristics such as natural frequency and ambient vibration response with an error of around 10%.
	Poster WEPH22 [0.541 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH22
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH23	FEA Simulations of the Aluminium Vacuum Chamber for LOREA Insertion Device at ALBA Synchrotron Light Source	radiation, vacuum, distributed, dipole	255
	M. Quispe, A.A. Gevorgyan ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	For LOREA, the new beamline at ALBA, the Insertion Device Apple-II helical out-vacuum undulator requires the installation of a suitable narrow-gap aluminium chamber. The chamber design is based on the standard ALBA aluminium chamber which has an internal elliptical cross section, where NEG coating is deposited and bending magnet (BM) radiation from the upstream dipole is dissipated on the chamber walls. For the standard chamber the upstream distributed absorber cannot protect the entire chamber from direct BM radiation because there is a limitation for its design: the beam impedance of the machine. Based on new studies of collective effects it has been concluded that it's possible to implement modifications on the upstream distributed absorber and protect the chamber from lateral collision of BM radiation keeping the beam impedance of the machine inside of a safe range. In spite of that still there is a contribution of the tails of BM radiation. In this paper we describe the behavior of the new aluminium vacuum chamber for different thermal load conditions using water and air for refrigeration. Also we present the design of the modified OFHC upstream distributed absorber.
	Poster WEPH23 [0.609 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH23
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH26	High Rigidity Girder System for the Sirius Machine	synchrotron, damping, storage-ring, experiment	261
	M.C. Rocha, P.P.S. Freitas, T. Jasso, R. Junqueira Leão, A.L. Mesa, R.T. Neuenschwander, A.R.D. Rodrigues, F. Rodrigues LNLS, Campinas, Brazil
	Sirius is a 4th generation synchrotron light source under construction in Brazil, with a bare emittance of 250 picometer rad, scheduled to have the first beam late this year. One of the most important aspects for this ultra-low emittance machine is the stability of the components, especially the magnets. This paper describes the main characteristics of the girder system, including the concrete pedestal, the leveling units, the girder itself, the clamping mechanism for the magnets and the measurements procedures. Each detail was considered in the design phase and the result is a high rigidity setup with a first horizontal mode close to 170 Hz.
	Poster WEPH26 [1.313 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH26
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH41	The Detector Adjustment System of Taiwan Photon Source 24A	detector, GUI, photon, vacuum	294
	B.Y. Chen, M. Y. Hsu, L. Lai, X. Y. Li, D.-J. Wang, G.C. Yin NSRRC, Hsinchu, Taiwan
	The soft X-ray tomography endstation of TPS has the ability to provide 3D biological cell images by fluores-cence structured-illumination microscopy (SIM) and soft x-ray tomography (SXT). The electron energy is design to be in the range of 200 eV to 3 keV. The detector system equipped with an Andor® iKon-L Series imaging CCD, X-Z-roll-pitch adjustment stage, and long stroke bellows system. The detector system can adjust the CCD about 10 mm in both X and Z direction, and ±5 degree of roll. Moreover, the long stroke bellows system gives the CCD an extra degree of freedom in the Y direction and its range is up to 2500 mm. That can locate the CCD close to the sample to get a larger field of view, and far from the sample to get higher image resolution. In this study, the design and commission status of the detector system is studied and the mechanical structures are also presented. soft X-ray tomography, Detector system
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH41
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH12	Granite Benches for Sirius X-ray Optical Systems	GUI, interface, experiment, synchrotron	361
	R.R. Geraldes, C.S.N.C. Bueno, G.V. Claudiano, V.Z. Ferreira, M. Saveri Silva, A. Sikorski, M.S. Souza LNLS, Campinas, Brazil
	Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC) The first set of Sirius beamlines is expected to start operating in early 2019 and over the last few years many optical systems for the X-ray beamlines have been developed in-house at the Brazilian Synchrotron Light Laboratory (LNLS). Starting with the High-Dynamic Double Crystal Monochromator (HD-DCM), passing by the Double Channel-Cut Monochromator (4CM) and continuing with new standard mirror sys-tems, a series of granite benches, based on high-resolution levellers, and a combination of embedded and commercial air-bearings, has been designed for high mechanical and thermal stability. Specifications, designs, and partial results are presented, showing the progressive increase in complexity according to a deterministic design approach.
	Poster THPH12 [3.907 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH12
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH14	Beam Conditioning Optics at the ALBA NCD-SWEET Beamline	optics, diagnostics, vacuum, focusing	365
	N. Gonzalez, C. Colldelram, S. Ferrer, A. Fontserè Recuenco, J.B. González Fernández, G. Jover-Mañas, C. Kamma-Lorger, J. Ladrera Fernández, M.L. Llonch, M. Malfois, J.C. Martínez Guil, I. Sics ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	The SAXS/WAXS Experimental End Station beamline (NCD-SWEET) at ALBA Synchrotron has undergone a major upgrade in the optics and the end station to perform state-of-the-art SAXS/WAXS experiments. In order to reduce X-ray parasitic scattering with air and maximize the photon flux at the sample, an optimized beam conditioning optics has been designed and built in the end station, integrating previously used and new components in vacuum. The beam conditioning optics includes a fast shutter, a set of commercial guard slits and a diagnostic unit com-prising three filters and a four-quadrant transmissive photodiode. In addition, a set of refractive beryllium lenses allowsμfocusing of the beam. The lens system can be removed from the beam path remotely. Finally, an on axis sample viewing system, with a novel design based on an in-vacuum camera mirror and a mica window minimizes the beam path in air up to the sample. To facilitate the alignment of the elements with respect to the beam, all the subsystems are supported by a high-stability granite table with 4 degrees of freedom and sub-micron resolution.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH14
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH27	Mechanical Design of a Compact Non-invasive Wavefront Sensor for Hard X-rays	optics, monitoring, controls, photon	394
	S.P. Kearney, L. Assoufid, W.C. Grizolli, T. Kolodziej, K. Lang, A. Macrander, X. Shi, D. Shu, Yu. Shvyd'ko, W. Wojcik ANL, Argonne, Illinois, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DEAC02-06CH11357. Abstract This work describes mechanical design of a prototype compact wavefront sensor for in situ measurement and monitoring of beam wavefront of hard x-ray beamlines [1]. The system is based on a single-shot grating interferometer [2, 3] and a thin diamond single-crystal beam splitter. The beam splitter is designed to be inserted in the incident and oriented to diffract a fraction of the incident beam bandwidth into the interferometer, for wavefront measurement and reconstruction. The concept is intended to study the feasibility of a non-invasive wavefront sensor for real time wavefront monitoring and diagnostics, with possible application in adaptive mirrors for wavefront preservation and control [1, 4]. The design focus was on compactness to enable easy portability and implementation in a beamline. * L. Assoufid et al., Rev. Sci. Instrum., 87(5), 052004, 2016 W. Grizolli et al., SPIE Proc., 1038502, 2017 * S. Marathe et al., Adaptive X-Ray Optics III, SPIE Proc., 92080D, 2014
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH27
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH31	Design of a flexible RIXS Setup	detector, vacuum, experiment, photon	400
	D. Meissner, S. Adler, M. Beye, A. Bühner, H. Krüger, R. Platzer, T. Reuss, M. Röhling, E. Saemann, E. Saithong DESY, Hamburg, Germany
	We present a new mechanical design for a RIXS experiment setup consisting of a sample environment vacuum chamber and corresponding spectrometer. It allows variable beam incidence angles to the sample as well as observation angles of the spectrometer. The dispersive element of the spectrometer can be aligned in five DOF by motors inside the UHV chamber. The alignment of the CCD detector can be adjusted independently in the lateral and longitudinal position as well as incidence angle. In combination with a tiltable detector chamber this design allows for multiple observation methods, not limited to variable energies but also for use of different optics or direct observations of the sample.
	Poster THPH31 [0.859 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH31
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH39	Novel Comprehensive UHV Lens Changer at the PETRA III Beamlines P22, P23 and P24	vacuum, synchrotron, focusing, GUI	418
	J. Raabe, K. Ederer, R. Grifone, D. Novikov, C. Schlüter DESY, Hamburg, Germany
	The design of a compact UHV-compatible X-ray transfocator for beryllium compound refractive lenses (CRL) is presented. CRLs are nowadays commonly applied as focusing elements in a lot of techniques based on synchrotron radiation. Aim of the current project was the development of a low-maintenance lens changer for beam focusing, collimation and aperture matching. The paper describes the new lens changer designs for the reliable use under ultrahigh vacuum conditions. Precise and reproducible alignment is achieved by pneumatic actuators that press the lens stacks against a high precision prism. All actuators and position sensors are placed outside the UHV vessel. Alignment is facilitated by integrated beam monitors and alignment apertures. We discuss two variants of the device, one designed for 2D lenses and the other one operating with 1D lenses. In the current version, the 2D lens changer adapts 12 stacks of up to 8 single lenses each, and the 1D variant ' 8 single lenses or apertures.
	Poster THPH39 [0.190 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH39
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUOPMA04

Apple II Insertion Devices Made at MAXIV

undulator, MMI, operation, polarization

6

A. Thiel, M. Ebbeni, H. Tarawneh
MAX IV Laboratory, Lund University, Lund, Sweden

At present five Apple II insertion devices were made and installed at MAX IV, three of them in the 1.5GeV-ring, and two in the 3GeV-ring. The assembly of the last one of a total number of six Apple II undulators made at MAX IV is currently going on. The undulators have period lengths of 48mm (two devices), 53mm, 58mm, 84mm and 95.2mm. The operational gap range of the 3GeV devices is between 11mm and 150mm, the range of the 1.5GeV devices is 14mm to 150mm. Structural analysis was applied to assure a minimum deflection of the main frame and the magnet array girders. The main frame is made of nodular cast iron, while the girders are made of aluminium alloy. In order to optimize the magnetic tuning the position of the magnet keepers can be adjusted by wedges. The undulators were fiducialized before the installation in the ring tunnel and were aligned in the straight section using their magnetic centre as reference. All MAX IV made undulators have three feet with vertical adjustment and separate horizontal adjusters. This paper describes the design, assembly, shimming and installation of the MAX IV Apple II devices in more detail.

Slides TUOPMA04 [12.328 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUOPMA04

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUOPMA08

Deformable RF Fingers with Axial Extension

vacuum, operation, GUI, experiment

15

S.K. Sharma, F.A. DePaola, F.C. Lincoln, J.L. Tuozzolo
BNL, Upton, Long Island, New York, USA

RF fingers in a bellows assembly provide electrical continuity for the image current between adjacent vacuum chambers. They are required to absorb all misalignments between the two chambers while minimizing abrupt changes in the beam aperture. In addition, during bake-outs of the chambers the fingers are required to accommodate their large thermal expansions. The latter is achieved either by having a sliding-contact finger design or a deformable finger design. In this paper we describe a version of the deformable finger design which permits large compression, significant misalignments and axial extension. A novel method of fingers' fabrication, FE analysis and test results are presented.

Slides TUOPMA08 [9.954 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUOPMA08

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH01

Installation and Alignment of SESAME Storage Ring

storage-ring, vacuum, dipole, MMI

20

T.H. Abu-Hanieh
SESAME, Allan, Jordan

SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East) is the first international 3rd generation synchrotron light source in the Middle East region. This paper presents the method used for installing the Storage ring girders, magnets, vacuum chambers, straight sections, and how the alignment was done. The Installation have been done in a short time with few staff. It was hard and difficult, but went great. A substantial progress has been made in the design, construction and installation of the SESAME Mechanical Systems. All Storage Ring accelerator systems are ready and commissioned.

Poster TUPH01 [2.697 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH01

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH09

Friction Stir Welding and Copper-Chromium Zirconium: a New Concept for the Design of Sirius' High-Power Absorbers

vacuum, synchrotron, operation, undulator

39

G.V. Claudiano, P.T. Fonseca, L.M. Volpe
LNLS, Campinas, Brazil
E.B. Fonseca, M. H. S. Silva
LNNano, Campinas, Brazil

Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC)
Sirius, the new Brazilian fourth-generation synchrotron light source, is currently under construction. Due to the high brilliance and low emittance of its source, the pho-ton beam on each undulator beamline can have power densities as high as 55 W/mrad². To protect the compo-nents downstream, the Front-End power absorbers need to manage this power in a limited space, but also having precision in alignment and being reliable all over their lifetime. To achieve this behaviour, the selected alloy was the copper-chromium-zirconium (CuCrZr, commercially known as C18150) because of improved thermal and mechanical properties. In order to seal the vacuum cham-ber (path on which the cooling water flows), friction stir welding was the selected joining method. During the welding process, the material passes through a grain re-finement process which results in a high-resistance joint. The manufacturing process could also result on a reduc-tion of costs and lead times. Finally, it will be presented the final versions of the component with its support and the characterizations done to validate the welded joint under vacuum and water pressure requirements.

Poster TUPH09 [2.987 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH09

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH11

Retractable Absorber (Mask) and White Beam Imager Diagnostic for Canted Straight Section

insertion, photon, radiation, operation

45

J. Da Silva Castro, N. Béchu, C. Herbeaux, N. Hubert, N. Jobert, M. Labat, F. Lepage, A. Mary, K.T. Tavakoli
SOLEIL, Gif-sur-Yvette, France

At the SOLEIL synchrotron, as in other accelerators, two canted sources can coexist on the same straight section for space and economic reasons. For its two long beamlines (ANATOMIX source upstream and NANOSCOPIUM source downstream) SOLEIL has made the choice to equip one of his long straight section with two canted insertion devices capable to operate simultaneously. That implies to take into account the degradation risk management of equipment, due to radiation. As the beam power deposition from the upstream undulator can seriously degrade the downstream one, or even other equipment. To handle these risks, Soleil first designed and installed in 2016 a retractable vertical absorber between both insertions to protect the downstream source from the upstream one. In 2017, Soleil then designed and installed a white beam imager, redundant an existing photon beam monitor (XBPM), to verify the correct positioning / alignment of equipment and beams relative to each other. For the vertical absorber as for the white beam imager Soleil had to meet some interesting technological and manufacturing aspects that we propose to present in a poster.

Poster TUPH11 [3.744 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH11

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH13

Mechanical Design Challenges Building a Prototype 8-Pole Corrector Magnet

quadrupole, vacuum, dipole, octupole

50

F.A. DePaola, R. Faussete, S.K. Sharma, C.J. Spataro
BNL, Upton, Long Island, New York, USA
A.K. Jain, M.S. Jaski
ANL, Argonne, Illinois, USA

An innovative design was developed for an 8-pole corrector magnet for the APS upgrade program. This is a combined function magnet consisting of horizontal and vertical correctors as well as a skew quadrupole. This paper describes technical challenges presented by both the magnetic design and the interface constraints for the magnet. A prototype magnet was built, and extensive testing on the magnet confirmed that all magnetic and mechanical requirements were achieved. Improvements were identified during the manufacturing and testing of the prototype magnet. The final design of the magnet which has incorporated these improvements is discussed in the paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH13

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH23

Field Quality From Tolerance Analyses in Two-Half Sextuple Magnet

sextupole, factory, multipole, lattice

78

J. Liu, R.J. Dejus, A.T. Donnelly, C.L. Doose, A.K. Jain, M.S. Jaski
ANL, Argonne, Illinois, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357
Sextupole magnets are used extensively in particle ac-celerators, synchrotrons, and storage rings. Good magnet-ic field quality is needed in these magnets, which requires machining the magnet parts to high precision and is the primary driver of the high fabrication costs. To minimize the fabrication costs, a magnetic field quality study from tolerance analyses was conducted. In this paper, finite element analysis (FEA) using OPERA was performed to identify key geometric factors that affect the magnetic field quality and identify the allowable range for these factors. Next, geometric and dimensional tolerance stack-up analyses are carried out using Teamcenter Variation Analysis to optimize the allocation of the geometric tol-erances to parts and assemblies. Finally, the analysis re-sults are compared to magnetic measurements of a R&D sextupole magnet.

Poster TUPH23 [1.027 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH23

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPH27

Structure Design of a Multi-Wire Target

vacuum, target, controls, neutron

92

X.J. Nie, H.Y. He, L. Kang, L. Liu, G.Y. Wang, T.G. Xu, D.H. Zhu
IHEP, Beijing, People's Republic of China
J.X. Chen, C.J. Ning, J.L. Sun, A.X. Wang, J.B. Yu, Y.J. Yu, J.S. Zhang
CSNS, Guangdong Province, People's Republic of China

Introduce a structure design of a Multi-Wire Target. The plan of wire alignment was decided by analysis. The wire tightening device with interlaced alignment was used to solve the wire alignment in narrow space. The vacuum chamber was designed by optimization. The displacement pickup was used to make the movement control of translation stages.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH27

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEOAMA04

The Design of Exactly-Constrained X-Ray Mirror Systems for Sirius

vacuum, operation, coupling, feedback

173

R.R. Geraldes, G.V. Claudiano, V.Z. Ferreira, L. Sanfelici, A. Sikorski, M.S. Souza, H.C.N. Tolentino, L.M. Volpe, H. Westfahl Jr.
LNLS, Campinas, Brazil

Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC)
The first set of Sirius beamlines is expected to start operating in early 2019. Regarding X-ray mirror sys-tems, a single design concept has been possible thanks to the standardization of side-bounce fixed-shape mirrors. To preserve the extreme quality of both the mirror figures and the source, the main design targets were minimizing mechanical and thermal distortions in the mirrors while maximizing mechanical and thermal stabilities. A deterministic high-resolution exactly-constrained flexure-based mirror support provides pitch tuning within 100 nrad and resonances above 150 Hz, while dealing with clamping and thermal ex-pansion effects. The adopted cooling strategy was indirect cryocooling via cryostats, drastically minimiz-ing thermal gradients and distortions in the mirrors, decoupling vibration sources and simplifying cooling circuits. Finally, a 5-degree-of-freedom granite bench, based on high-resolution levellers and air-bearing solutions, support the vacuum chamber, on which the internal mechanics is stiffly mounted. The specifica-tions, design and partial results are presented.

Slides WEOAMA04 [6.607 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA04

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEOPMA04

Mechanical Design of a New Precision Alignment Apparatus for Compact X-ray Compound Refractive Lens Manipulator

HOM, detector, GUI, operation

168

D. Shu, J.W.J. Anton, L. Assoufid, W.C. Grizolli, Z. Islam, S.P. Kearney, P. Kenesei, S.D. Shastri, X. Shi
ANL, Argonne, Illinois, USA
J.W.J. Anton
University of Illinois at Chicago, Chicago, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357.
A prototype of compact x-ray compound refractive lens (CRL) manipulator system has been developed at the Argonne National Laboratory for dark-field imaging of multi-scale structures. This novel full-field imaging modality uses Bragg peaks to reconstruct 3D distribution of mesoscopic and microscopic structures that govern the behavior of functional materials, in particular, thermodynamic phase transitions in magnetic systems. At the heart of this microscopy technique is a CRL-based x-ray objective lens* with an easily adjustable focal length to isolate any region of interest, typically in the energy range of 5-100 keV or higher, with high precision positional and angular reproducibility. Since the x-ray CRL manipulator system for this technique will be implemented on a high-resolution diffractometer detector arm that rotates during diffraction studies, compactness and system stability, along with the ability to change focal length (zooming), became key design requirements for this new CRL manipulator system. The mechanical design of the compact x-ray CRL manipulator system, as well as finite element analyses for its precision alignment apparatus are described in this paper.
* http://www.rxoptics.de/intro.html

Slides WEOPMA04 [4.189 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA04

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH08

Application of Remote Installation and Measurement Smart Vehicle in Accelerator

monitoring, controls, radiation, operation

217

J.X. Chen, H.Y. He, C.J. Ning, A.X. Wang, Y.J. Yu, J.S. Zhang, D.H. Zhu
CSNS, Guangdong Province, People's Republic of China
L. Kang, L. Liu, X.J. Nie, G.Y. Wang, J.B. Yu
IHEP, Beijing, People's Republic of China

Funding: National Natural Science Foundation of China, No.11375217
The installation, alignment measurement and vibration monitoring of the accelerator equipment are cumbersome. In order to reduce the work intensity and exposure time of personnel, this paper has developed a smart vehicle that can automatically walk and automatically adjust the horizontal in the accelerator or beam line area. The smart vehicle can move forwards, sideways, oblique lines, rotations and combinations, and can automatically adjust the level according to different terrains. The auto-leveling accuracy is better than 0.001 degrees. By installing vibration measuring equipment or collimating equipment on the vehicle platform, vibration testing and collimation measurement of the equipment in the accelerator or beamline device can be performed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH08

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH18

Operation Status of HLS System Installed to Measure Ground Change of Large Scientific Equipment in Real Time

FEL, linac, real-time, survey

245

H. J. Choi, J.H. Han, H.-S. Kang, S.H. Kim, S.N. Kim, H.-G. Lee, S.B. Lee
PAL, Pohang, Kyungbuk, Republic of Korea

Several parts that comprise the large scientific equipment should be installed and operated at precise three-dimensional location coordinates X, Y, and Z through survey and alignment to ensure their optimal performance. As time goes by, however, the ground goes through uplift and subsidence, which consequently changes the coordinates of installed components and leads to alignment errors. As a result, the system parameters change, and the performance of the large scientific equipment deteriorates accordingly. Measuring the change in locations of systems comprising the large scientific equipment in real time would make it possible to predict alignment errors, locate any region with greater changes, realign components in the region fast, and shorten the time of survey and alignment. For this purpose, a WPS's (wire position sensor) are installed in undulator section and a HLS's (hydrostatic leveling sensor) are installed in PAL-XFEL building. This paper is designed to introduce performance enhancements to reduce observed phenomena and measurement errors in the HLS system operation process.

Poster WEPH18 [2.958 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH18

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH22

Le Guide for Support: A Cookbook for Modeling of Accelerator Structures*

damping, storage-ring, SRF, synchrotron

252

C.A. Preissner, S.J. Izzo, Z. Liu, J. Nudell
ANL, Argonne, Illinois, USA

Funding: * Argonne National Laboratory's work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract DE-AC02- 06CH11357.
The Advanced Photon Source-Upgrade (APS-U) project has stringent specifications and a 12 month installation schedule. Some form of these constraints appear to be common at all multi-bend achromat upgrade projects. At the APS-U, no full tests will be made of the final accelerator support design. The evaluation of the final design against the specifications will be based primarily on computer simulations using virtual inputs. Insuring that the final designs meet specifications solely based on simulations is much like cooking a complex, multi-course meal without a trial run. Producing a successful meal on the first try requires a prior understanding of the ingre-dients, techniques, and interactions between the constituents. A good cookbook can be essential in providing this under-standing. Likewise, producing an accelerator support final design that meets the requirements requires a prior under-standing of the materials, components, techniques, and interactions between them. This poster describes a cookbook-style approach that any design team can use to confidently predict important characteristics such as natural frequency and ambient vibration response with an error of around 10%.

Poster WEPH22 [0.541 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH22

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH23

FEA Simulations of the Aluminium Vacuum Chamber for LOREA Insertion Device at ALBA Synchrotron Light Source

radiation, vacuum, distributed, dipole

255

M. Quispe, A.A. Gevorgyan
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

For LOREA, the new beamline at ALBA, the Insertion Device Apple-II helical out-vacuum undulator requires the installation of a suitable narrow-gap aluminium chamber. The chamber design is based on the standard ALBA aluminium chamber which has an internal elliptical cross section, where NEG coating is deposited and bending magnet (BM) radiation from the upstream dipole is dissipated on the chamber walls. For the standard chamber the upstream distributed absorber cannot protect the entire chamber from direct BM radiation because there is a limitation for its design: the beam impedance of the machine. Based on new studies of collective effects it has been concluded that it's possible to implement modifications on the upstream distributed absorber and protect the chamber from lateral collision of BM radiation keeping the beam impedance of the machine inside of a safe range. In spite of that still there is a contribution of the tails of BM radiation. In this paper we describe the behavior of the new aluminium vacuum chamber for different thermal load conditions using water and air for refrigeration. Also we present the design of the modified OFHC upstream distributed absorber.

Poster WEPH23 [0.609 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH23

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH26

High Rigidity Girder System for the Sirius Machine

synchrotron, damping, storage-ring, experiment

261

M.C. Rocha, P.P.S. Freitas, T. Jasso, R. Junqueira Leão, A.L. Mesa, R.T. Neuenschwander, A.R.D. Rodrigues, F. Rodrigues
LNLS, Campinas, Brazil

Sirius is a 4th generation synchrotron light source under construction in Brazil, with a bare emittance of 250 picometer rad, scheduled to have the first beam late this year. One of the most important aspects for this ultra-low emittance machine is the stability of the components, especially the magnets. This paper describes the main characteristics of the girder system, including the concrete pedestal, the leveling units, the girder itself, the clamping mechanism for the magnets and the measurements procedures. Each detail was considered in the design phase and the result is a high rigidity setup with a first horizontal mode close to 170 Hz.

Poster WEPH26 [1.313 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH26

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPH41

The Detector Adjustment System of Taiwan Photon Source 24A

detector, GUI, photon, vacuum

294

B.Y. Chen, M. Y. Hsu, L. Lai, X. Y. Li, D.-J. Wang, G.C. Yin
NSRRC, Hsinchu, Taiwan

The soft X-ray tomography endstation of TPS has the ability to provide 3D biological cell images by fluores-cence structured-illumination microscopy (SIM) and soft x-ray tomography (SXT). The electron energy is design to be in the range of 200 eV to 3 keV. The detector system equipped with an Andor® iKon-L Series imaging CCD, X-Z-roll-pitch adjustment stage, and long stroke bellows system. The detector system can adjust the CCD about 10 mm in both X and Z direction, and ±5 degree of roll. Moreover, the long stroke bellows system gives the CCD an extra degree of freedom in the Y direction and its range is up to 2500 mm. That can locate the CCD close to the sample to get a larger field of view, and far from the sample to get higher image resolution. In this study, the design and commission status of the detector system is studied and the mechanical structures are also presented.
soft X-ray tomography, Detector system

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH41

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH12

Granite Benches for Sirius X-ray Optical Systems

GUI, interface, experiment, synchrotron

361

R.R. Geraldes, C.S.N.C. Bueno, G.V. Claudiano, V.Z. Ferreira, M. Saveri Silva, A. Sikorski, M.S. Souza
LNLS, Campinas, Brazil

Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC)
The first set of Sirius beamlines is expected to start operating in early 2019 and over the last few years many optical systems for the X-ray beamlines have been developed in-house at the Brazilian Synchrotron Light Laboratory (LNLS). Starting with the High-Dynamic Double Crystal Monochromator (HD-DCM), passing by the Double Channel-Cut Monochromator (4CM) and continuing with new standard mirror sys-tems, a series of granite benches, based on high-resolution levellers, and a combination of embedded and commercial air-bearings, has been designed for high mechanical and thermal stability. Specifications, designs, and partial results are presented, showing the progressive increase in complexity according to a deterministic design approach.

Poster THPH12 [3.907 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH12

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH14

Beam Conditioning Optics at the ALBA NCD-SWEET Beamline

optics, diagnostics, vacuum, focusing

365

N. Gonzalez, C. Colldelram, S. Ferrer, A. Fontserè Recuenco, J.B. González Fernández, G. Jover-Mañas, C. Kamma-Lorger, J. Ladrera Fernández, M.L. Llonch, M. Malfois, J.C. Martínez Guil, I. Sics
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

The SAXS/WAXS Experimental End Station beamline (NCD-SWEET) at ALBA Synchrotron has undergone a major upgrade in the optics and the end station to perform state-of-the-art SAXS/WAXS experiments. In order to reduce X-ray parasitic scattering with air and maximize the photon flux at the sample, an optimized beam conditioning optics has been designed and built in the end station, integrating previously used and new components in vacuum. The beam conditioning optics includes a fast shutter, a set of commercial guard slits and a diagnostic unit com-prising three filters and a four-quadrant transmissive photodiode. In addition, a set of refractive beryllium lenses allowsμfocusing of the beam. The lens system can be removed from the beam path remotely. Finally, an on axis sample viewing system, with a novel design based on an in-vacuum camera mirror and a mica window minimizes the beam path in air up to the sample. To facilitate the alignment of the elements with respect to the beam, all the subsystems are supported by a high-stability granite table with 4 degrees of freedom and sub-micron resolution.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH14

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH27

Mechanical Design of a Compact Non-invasive Wavefront Sensor for Hard X-rays

optics, monitoring, controls, photon

394

S.P. Kearney, L. Assoufid, W.C. Grizolli, T. Kolodziej, K. Lang, A. Macrander, X. Shi, D. Shu, Yu. Shvyd'ko, W. Wojcik
ANL, Argonne, Illinois, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DEAC02-06CH11357.
Abstract This work describes mechanical design of a prototype compact wavefront sensor for in situ measurement and monitoring of beam wavefront of hard x-ray beamlines [1]. The system is based on a single-shot grating interferometer [2, 3] and a thin diamond single-crystal beam splitter. The beam splitter is designed to be inserted in the incident and oriented to diffract a fraction of the incident beam bandwidth into the interferometer, for wavefront measurement and reconstruction. The concept is intended to study the feasibility of a non-invasive wavefront sensor for real time wavefront monitoring and diagnostics, with possible application in adaptive mirrors for wavefront preservation and control [1, 4]. The design focus was on compactness to enable easy portability and implementation in a beamline.
* L. Assoufid et al., Rev. Sci. Instrum., 87(5), 052004, 2016
** W. Grizolli et al., SPIE Proc., 1038502, 2017
*** S. Marathe et al., Adaptive X-Ray Optics III, SPIE Proc., 92080D, 2014

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH27

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH31

Design of a flexible RIXS Setup

detector, vacuum, experiment, photon

400

D. Meissner, S. Adler, M. Beye, A. Bühner, H. Krüger, R. Platzer, T. Reuss, M. Röhling, E. Saemann, E. Saithong
DESY, Hamburg, Germany

We present a new mechanical design for a RIXS experiment setup consisting of a sample environment vacuum chamber and corresponding spectrometer. It allows variable beam incidence angles to the sample as well as observation angles of the spectrometer. The dispersive element of the spectrometer can be aligned in five DOF by motors inside the UHV chamber. The alignment of the CCD detector can be adjusted independently in the lateral and longitudinal position as well as incidence angle. In combination with a tiltable detector chamber this design allows for multiple observation methods, not limited to variable energies but also for use of different optics or direct observations of the sample.

Poster THPH31 [0.859 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH31

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPH39

Novel Comprehensive UHV Lens Changer at the PETRA III Beamlines P22, P23 and P24

vacuum, synchrotron, focusing, GUI

418

J. Raabe, K. Ederer, R. Grifone, D. Novikov, C. Schlüter
DESY, Hamburg, Germany

The design of a compact UHV-compatible X-ray transfocator for beryllium compound refractive lenses (CRL) is presented. CRLs are nowadays commonly applied as focusing elements in a lot of techniques based on synchrotron radiation. Aim of the current project was the development of a low-maintenance lens changer for beam focusing, collimation and aperture matching. The paper describes the new lens changer designs for the reliable use under ultrahigh vacuum conditions. Precise and reproducible alignment is achieved by pneumatic actuators that press the lens stacks against a high precision prism. All actuators and position sensors are placed outside the UHV vessel. Alignment is facilitated by integrated beam monitors and alignment apertures. We discuss two variants of the device, one designed for 2D lenses and the other one operating with 1D lenses. In the current version, the 2D lens changer adapts 12 stacks of up to 8 single lenses each, and the 1D variant ' 8 single lenses or apertures.

Poster THPH39 [0.190 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH39

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)