MEDSI2018 - List of Keywords (shielding)

Paper	Title	Other Keywords	Page
TUPH02	Collimator for ESRF-EBS	electron, radiation, SRF, storage-ring	23
	J. Borrel, Y. Dabin, F. Ewald, P. Van Vaerenbergh ESRF, Grenoble, France
	The function of the collimator is to localize the majority of the electron losses in the ESRF-EBS storage ring (SR). In addition, the collimator of the ESRF-EBS should absorb about 1200w of synchrotron radiation. For ESRF-EBS, the electron losses due to intra bunch scattering (Touschek scattering) will be higher than in the current ESRF SR. To control the level of radiation outside the storage ring tunnel and the activation level of the vacuum chambers, it is more efficient to localize the electron losses and block the radiations at one place rather than reinforce all of the SR tunnel shielding. The poster will show how the design has taken into account all the diverse requirements from a safety, accelerator physics, thermo-mechanical and mechanical point of view.
	Poster TUPH02 [1.569 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH02
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THPH03	The XBPM Project at MAX IV Frontends, Overview and First Results	storage-ring, controls, photon, high-voltage	340
	A. Bartalesi MAX IV Laboratory, Lund University, Lund, Sweden
	All the frontends installed on the 3GeV storage ring at MAX IV are equipped with two X-Ray Beam Position Monitors. Having recently finished the installation of the acquisition system, it was possible to record and analyse data. This presentation describes the setup and shows the first results.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH03
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THPH24	Front End Designs for the Advanced Photon Source Multi-bend Achromats Upgrade	photon, storage-ring, undulator, detector	388
	Y. Jaski, M. Abliz, J.S. Downey, S.H. Lee, J. Mulvey, S.M. Oprondek, M. Ramanathan, F. Westferro, B.X. Yang ANL, Argonne, Illinois, USA
	Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357 The Advanced Photon Source (APS) upgrade from double-bend achromats (DBA) to multi-bend achromats (MBA) lattice is underway. This upgrade will change the storage ring energy from 7 GeV to 6 GeV and beam current from 100 mA to 200 mA. All front ends must be upgraded to fulfill the following requirements: 1) Include a clearing magnet in all front ends to deflect and dump any electrons in case the electrons escape from the storage ring during swap-out injection with the safety shutters open, 2) Incorporate the next generation x-ray beam position monitors (XBPMs) into the front ends to meet the new stringent beam stability requirements, 3) For insertion device (ID) front ends, handle the high heat load from two undulators in either inline or canted configuration. The upgraded APS ID front ends will only have two types: High Heat Load Front End (HHLFE) for single beam and Canted Undulator Front End (CUFE) for canted beam. This paper presents the final design of the HHLFE and preliminary design of the CUFE.
	Poster THPH24 [1.279 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH24
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THPH38	Design & Development of an Innovative 6 Axis Sample Manipulator.	experiment, FEL, vacuum, ISOL	415
	M.F. Purling DLS, Oxfordshire, United Kingdom
	The accurate positioning & alignment of sample specimens within the experimental test chamber on a beam line is always a challenge. The ability to move in any direction and angle to very precise increments with repeatable positioning is crucial for being able to focus on the exact part of the sample required in the correct orientation. It can be made even more difficult when the sample is required to work within the UHV vacuum environment and be cooled to cryogenic temperatures. Initially in conjunction with St Andrews University, Diamond Light Source Ltd. have been developing their own manipulator for this purpose, it has six degrees of freedom for alignment of the sample and easy remote sample plate loading via a transfer arm system. This paper describes the developments made from the initial design to working manipulators with increased functionality for bespoke requirements on four different beamline within Diamond.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH38
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THPH43	New Holder for Dual-Axis Cryo Soft X-Ray Tomography of Cells at the Mistral Beamline	cryogenics, synchrotron, vacuum, radiation	427
	R. Valcárcel, C. Colldelram, N. Gonzalez, E. Pereiro, A.J. Pérez-Berná, A. Sorrentino ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
	A new dual-axis sample holder has been designed and built for the Transmission soft X-ray Microscope (TXM) at the MISTRAL beamline (ALBA Synchrotron) to perform cryo-soft X-ray tomography of cells with dual tilt configuration to reduce the missing wedge. The design, with restricted dimensions Ø7x30mm, enables using commercial Auto-Grid support rings that give rigidity to the sample grid handling. It consists of a guided miniature handle with a spring system that allows sample rotation by 90° around the beam axis inside vacuum and in cryogenic conditions by using the TXM sample loading robot keeping a rotation of ±65° at the sample stage. Two magnets fix the positions at 0° and 90°.The two tilt series can be collected consecutively and the use of Au fiducials permits combining both improving the final quality of the 3D reconstructions. In particular, cellular features hidden due to their orientation with respect to the axis of rotation become visible. The main frame is made in aluminium bronze to enhance the thermal conductivity and in addition, all the pieces have undergone an ion implantation treatment in order to reduce friction and improve the anti-seizure property of the parts.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH43
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPH02

Collimator for ESRF-EBS

electron, radiation, SRF, storage-ring

23

J. Borrel, Y. Dabin, F. Ewald, P. Van Vaerenbergh
ESRF, Grenoble, France

The function of the collimator is to localize the majority of the electron losses in the ESRF-EBS storage ring (SR). In addition, the collimator of the ESRF-EBS should absorb about 1200w of synchrotron radiation. For ESRF-EBS, the electron losses due to intra bunch scattering (Touschek scattering) will be higher than in the current ESRF SR. To control the level of radiation outside the storage ring tunnel and the activation level of the vacuum chambers, it is more efficient to localize the electron losses and block the radiations at one place rather than reinforce all of the SR tunnel shielding. The poster will show how the design has taken into account all the diverse requirements from a safety, accelerator physics, thermo-mechanical and mechanical point of view.

Poster TUPH02 [1.569 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH02

Export •

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

THPH03

The XBPM Project at MAX IV Frontends, Overview and First Results

storage-ring, controls, photon, high-voltage

340

A. Bartalesi
MAX IV Laboratory, Lund University, Lund, Sweden

All the frontends installed on the 3GeV storage ring at MAX IV are equipped with two X-Ray Beam Position Monitors. Having recently finished the installation of the acquisition system, it was possible to record and analyse data. This presentation describes the setup and shows the first results.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH03

Export •

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

THPH24

Front End Designs for the Advanced Photon Source Multi-bend Achromats Upgrade

photon, storage-ring, undulator, detector

388

Y. Jaski, M. Abliz, J.S. Downey, S.H. Lee, J. Mulvey, S.M. Oprondek, M. Ramanathan, F. Westferro, B.X. Yang
ANL, Argonne, Illinois, USA

Funding: Work supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-AC02-06CH11357
The Advanced Photon Source (APS) upgrade from double-bend achromats (DBA) to multi-bend achromats (MBA) lattice is underway. This upgrade will change the storage ring energy from 7 GeV to 6 GeV and beam current from 100 mA to 200 mA. All front ends must be upgraded to fulfill the following requirements: 1) Include a clearing magnet in all front ends to deflect and dump any electrons in case the electrons escape from the storage ring during swap-out injection with the safety shutters open, 2) Incorporate the next generation x-ray beam position monitors (XBPMs) into the front ends to meet the new stringent beam stability requirements, 3) For insertion device (ID) front ends, handle the high heat load from two undulators in either inline or canted configuration. The upgraded APS ID front ends will only have two types: High Heat Load Front End (HHLFE) for single beam and Canted Undulator Front End (CUFE) for canted beam. This paper presents the final design of the HHLFE and preliminary design of the CUFE.

Poster THPH24 [1.279 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH24

Export •

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

THPH38

Design & Development of an Innovative 6 Axis Sample Manipulator.

experiment, FEL, vacuum, ISOL

415

M.F. Purling
DLS, Oxfordshire, United Kingdom

The accurate positioning & alignment of sample specimens within the experimental test chamber on a beam line is always a challenge. The ability to move in any direction and angle to very precise increments with repeatable positioning is crucial for being able to focus on the exact part of the sample required in the correct orientation. It can be made even more difficult when the sample is required to work within the UHV vacuum environment and be cooled to cryogenic temperatures. Initially in conjunction with St Andrews University, Diamond Light Source Ltd. have been developing their own manipulator for this purpose, it has six degrees of freedom for alignment of the sample and easy remote sample plate loading via a transfer arm system. This paper describes the developments made from the initial design to working manipulators with increased functionality for bespoke requirements on four different beamline within Diamond.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH38

Export •

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

THPH43

New Holder for Dual-Axis Cryo Soft X-Ray Tomography of Cells at the Mistral Beamline

cryogenics, synchrotron, vacuum, radiation

427

R. Valcárcel, C. Colldelram, N. Gonzalez, E. Pereiro, A.J. Pérez-Berná, A. Sorrentino
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain

A new dual-axis sample holder has been designed and built for the Transmission soft X-ray Microscope (TXM) at the MISTRAL beamline (ALBA Synchrotron) to perform cryo-soft X-ray tomography of cells with dual tilt configuration to reduce the missing wedge. The design, with restricted dimensions Ø7x30mm, enables using commercial Auto-Grid support rings that give rigidity to the sample grid handling. It consists of a guided miniature handle with a spring system that allows sample rotation by 90° around the beam axis inside vacuum and in cryogenic conditions by using the TXM sample loading robot keeping a rotation of ±65° at the sample stage. Two magnets fix the positions at 0° and 90°.The two tilt series can be collected consecutively and the use of Au fiducials permits combining both improving the final quality of the 3D reconstructions. In particular, cellular features hidden due to their orientation with respect to the axis of rotation become visible. The main frame is made in aluminium bronze to enhance the thermal conductivity and in addition, all the pieces have undergone an ion implantation treatment in order to reduce friction and improve the anti-seizure property of the parts.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH43

Export •

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