Keyword: experiment
Paper Title Other Keywords Page
TUOPMA08 Deformable RF Fingers with Axial Extension vacuum, alignment, operation, GUI 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 icon 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)  
 
TUPH18 Vacuum Performance Test of CuCrZr Photon Absorbers vacuum, simulation, storage-ring, synchrotron 66
 
  • Q. Li, D.Z. Guo, P. He, B.Q. Liu, Y. Ma, T.Z. Qi, X.J. Wang
    IHEP, Beijing, People's Republic of China
  • E. Maccallini, P. Manini
    SAES Getters S.p.A., Lainate, Italy
  
  To test the pump­ing per­for­mance of NEG coated Cu-CrZr ab­sorber, we per­formed a com­par­a­tive ex­per­i­ment on the two ab­sorbers, one with NGE coat­ing and the other one with­out coat­ing. First, we run the Monte Carlo simu-la­tion by using MolFlow+ code to es­ti­mate the pres­sure in­side test cham­ber at dif­fer­ent ther­mal out­gassing rate. And then two ab­sorbers are mounted in­side the cham­ber for the pres­sure vs. time pro­files test­ing. The ex­per­i­men­tal set-up and pres­sure pro­files will be pre­sented here.  
poster icon Poster TUPH18 [0.852 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH18  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPH25 Morphologies of Oxygen-Free Titanium and Palladium/Titanium Thin Films: New Non-Evaporable Getter (NEG) Coatings vacuum, electron, interface, site 84
 
  • T. Miyazawa
    Sokendai, The Graduate University for Advanced Studies, Tsukuba, Japan
  • A.H. Hashimoto, M. Yamanaka
    NIMS, Tsukuba, Ibaraki, Japan
  • T. Kikuchi, K. Mase
    KEK, Tsukuba, Japan
  
  Funding: This research was partly supported by a TIA-Kakehashi grant and by the Global Research Center for Environment and Energy based on Nanomaterials Science.
Non-evap­orable get­ter (NEG) coat­ings are ideal for main­tain­ing an ul­tra­high vac­uum (UHV) in the range 10'8 Pa and they are widely used for ac­cel­er­a­tors be­cause they are oil free, mag­netic-field free, vi­bra­tion free, eco­nom­i­cal, space sav­ing, and en­ergy ef­fi­cient. We re­cently fab­ri­cated new NEG coat­ings con­sist­ing of low-oxy­gen-con­tent Ti or oxy­gen-free Pd/Ti by sub­li­ma­tion under a clean UHV in the range 10'8 to 10'7 Pa [*]. Here, we re­port the de­ter­mi­na­tion of the mor­pholo­gies of these films by scan­ning elec­tron mi­croscopy, trans­mis­sion elec­tron mi­croscopy, scan­ning trans­mis­sion elec­tron mi­croscopy, and en­ergy-dis­per­sive X-ray spec­troscopy. The Ti and Pd films had al­most uni­form thick­nesses of about 1.3 'm and 50 nm, re­spec­tively, and the Pd film com­pletely over­coated the Ti film. Both the Pd and Ti thin films were uni­formly de­posited in plane on the stain­less steel 304L sub­strate and they had poly­crys­talline struc­tures. The in­ter­face be­tween the Pd and Ti thin films was not abrupt.
* T. Miyazawa, K. Tobishima, H. Kato, M. Kurihara, S. Ohno, T. Kikuchi, and K. Mase, Vac. Surf. Sci. 61, 227 (2018). 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH25  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPH30 ALBA Synchrotron Light Source Liquefaction Helium Plant operation, synchrotron, MMI, ECR 102
 
  • M. Prieto, J.J. Casas, C. Colldelram, Y. Nikitin
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  ALBA is a 3rd gen­er­a­tion Syn­chro­tron Light fa­cil­ity with: 8 op­er­a­tional Beam Lines (BLs), a 2nd BL of Phase II under con­struc­tion and 3 first Phase III BLs in de­sign phase. Some user ex­per­i­ments re­quire Liq­uid He­lium (LHe) as a coolant. The re­sult­ing LHe con­sump­tion at ALBA is about 650 l/week. Thus far the va­por­ized he­lium, which re­sults from the re­frig­er­a­tion of ex­per­i­ments and equip­ment, has been re­leased into the at­mos­phere with­out being reused. Due to the in­creas­ing price of LHe, ALBA agreed with ICN2 (Cata­lan In­sti­tute of Nanoscience and Nan­otech­nol­ogy) to in­vest in a Liq­ue­fac­tion He­lium Plant. In­ter­nal staff has car­ried out the pro­ject, in­stal­la­tion and pres­sure equip­ment le­gal­iza­tion of the plant, which is lo­cated in a new 80 m2 con­struc­tion. Under op­er­a­tion the plant al­lows re­cy­cling up to 24960 litres of LHe per year, which is an 80% of the he­lium con­sumed at ALBA, by mak­ing the gaseous he­lium un­dergo through 3 main stages: re­cov­ery, pu­rifi­ca­tion and liq­ue­fac­tion. The plant, unique in Cat­alo­nia, will en­tail cost sav­ings about 77% and will re­duce vul­ner­a­bil­ity to sup­ply dis­rup­tions. ICN2 will ben­e­fit from a part of the pro­duc­tion due to their ini­tial in­vest­ment.  
poster icon Poster TUPH30 [1.946 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH30  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPH33 Vibration Measurement & Simulation of Magnet & Girder in SESAME software, quadrupole, dipole, controls 111
 
  • M.M. Al Shehab
    SESAME, Amman, Jordan
  
  Funding: IAEA
SESAME (Syn­chro­tron-light for Ex­per­i­men­tal Sci­ence and Ap­pli­ca­tions in the Mid­dle East) started op­er­a­tion in Jan­u­ary 2017. Dur­ing the de­sign phase sev­eral FEA stud­ies were per­formed to op­ti­mize the girder and the mag­net de­sign tak­ing into ac­count all the con­straints such as the tight spac­ing be­tween mag­nets, the vac­uum cham­ber in­stal­la­tion in­ter­ac­tions with the mag­nets. In this paper the ex­per­i­men­tal and Nu­mer­i­cal modal analy­sis are pre­sented as well as the re­sult com­par­i­son be­tween the ex­per­i­men­tal and sim­u­la­tion work. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH33  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUPH39 The Design of LCLS-II Photon Beam Containment System photon, FEL, synchrotron, operation 133
 
  • H. Wang, Y. Feng, S. Forcat Oller, J. Krzywiński, E. Ortiz, M. Rowen
    SLAC, Menlo Park, California, USA
  
  LCLS-II will pro­duce very pow­er­ful pho­ton beams. Un­like con­ven­tional syn­chro­trons, the LCLS-II beam con­tain­ment com­po­nents with­stand not only the high av­er­age beam power and power den­sity, but also the in­stan­ta­neous ther­mal shocks from pulsed FEL beam, which can reach ~9mJ/pulse. With beam rep­e­ti­tion rate up to 1MHz, reg­u­lar metal based beam col­li­ma­tors and ab­sorbers will no longer work, be­cause of the like­li­hood of fa­tigue fail­ure. And be­cause of the poor ther­mal con­duc­tiv­ity, the old LCLS B4C based ab­sorber would need very shal­low glanc­ing angle and take valu­able beam­line space. Hence, a low-Z and high ther­mal con­duc­tiv­ity CVD di­a­mond based pho­ton beam col­li­ma­tor and ab­sorber sys­tems have been de­vel­oped in LCSL-II. The ini­tial dam­age tests using LCLS FEL beam pro­vided pos­i­tive re­sults that graphite coated CVD di­a­mond can en­dure per pulse dose level to ~0.5eV/atom. For the beam­line and per­son­nel safety, in ad­di­tion to the pas­sive CVD di­a­mond col­li­ma­tors and ab­sorbers, newly de­vel­oped pho­ton diode beam mis-steer de­tec­tion sys­tems and con­ven­tional SLAC pres­sur­ized burnt-through mon­i­tors have been also in­tro­duced in the pho­ton beam­line sys­tem de­sign.  
poster icon Poster TUPH39 [1.251 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-TUPH39  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOAMA01 The Status of the New High-Dynamic DCM for Sirius controls, operation, vacuum, synchrotron 147
 
  • R.R. Geraldes, R.M. Caliari, G.B.Z.L. Moreno, L. Sanfelici, M. Saveri Silva, H.C.N. Tolentino, H. Westfahl Jr.
    LNLS, Campinas, Brazil
  • T.A.M. Ruijl, R.M. Schneider
    MI-Partners, Eindhoven, The Netherlands
  
  Funding: Ministry of Science, Technology, Innovation and Communication (MCTIC)
The mono­chro­ma­tor is known to be one of the most crit­i­cal op­ti­cal el­e­ments of a syn­chro­tron beam­line, since it di­rectly af­fects the beam qual­ity with re­spect to en­ergy and po­si­tion. Nat­u­rally, the new 4th gen­era-tion ma­chines, with their small emit­tances, start to bring higher sta­bil­ity per­for­mance re­quire­ments, in spite of fac­tors as high power loads and vari­a­tions, high ra­di­a­tion lev­els, ul­tra-high vac­uum com­pat­i­bil­ity and vi­bra­tion sources. In re­sponse to that, an in­nova-tive con­cept of a high-dy­namic ver­ti­cal DCM (Dou­ble Crys­tal Mono­chro­ma­tor) with an­gu­lar range be­tween 3 and 60 de­grees (equiv­a­lent to 2.3 to 38 keV with Si(111)) has been de­vel­oped at the Brazil­ian Syn­chro-tron Light Lab­o­ra­tory. A highly re­peat­able dy­namic sys­tem, with servo con­trol band­width of 250 Hz, has been achieved and will be in­stalled at Sir­ius macromo-lec­u­lar crys­tal­log­ra­phy beam­line ' MAN­ACA ' still in 2018. The com­plete of­fline re­sults of the in-vac­uum cry­ocooled high-dy­namic DCM, show­ing sta­bil­ity be­tween crys­tals around 15 nrad RMS up to 2.5 kHz, even dur­ing the Bragg angle mo­tion for fly­scans, are pre­sented. 		 
slides icon Slides WEOAMA01 [7.575 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA01  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOAMA02 Sample Stabilization for Tomography Experiments in Presence of Large Plant Uncertainty controls, SRF, feedback, simulation 153
 
  • T. Dehaeze, C.G.R.L. Collette
    PML, Liège, Belgium
  • C.G.R.L. Collette
    ULB - FSA - SMN, Bruxelles, Belgium
  • T. Dehaeze, M. Magnin-Mattenet
    ESRF, Grenoble, France
  
  A new low emit­tance lat­tice stor­age ring is under con­struc­tion at the ESRF. In this new in­stru­ment, an up­graded end sta­tion for ID31 beam­line must allow to po­si­tion the sam­ples along com­plex tra­jec­to­ries with a nanome­ter pre­ci­sion. In order to reach these re­quire­ments, sam­ples have to be mounted on high pre­ci­sion stages, com­bin­ing a ca­pa­bil­ity of large stroke, spin mo­tion, and ac­tive re­jec­tion of dis­tur­bances. First, the end sta­tion will be pre­sented with the as­so­ci­ated re­quire­ments. How­ever, the pre­ci­sion is lim­ited by ther­mal ex­pan­sion and var­i­ous im­per­fec­tions that are not ac­tively com­pen­sated. Our ap­proach is to add a Nano Ac­tive Sta­bi­liza­tion Sys­tem (NASS) which is com­posed of a 6DoF Stew­art plat­form and a 6 DoF metrol­ogy sys­tem. A 3D model of the end sta­tion up­dated with ex­per­i­men­tal data is de­vel­oped. As the mass of the sam­ples may vary by up to two or­ders of mag­ni­tudes, ro­bust con­trol strate­gies are re­quired to ad­dress such plant un­cer­tainty. The pro­posed con­trol strat­egy are pre­sented and ap­plied on the de­vel­oped model by con­duct­ing time do­main sim­u­la­tions of to­mog­ra­phy ex­per­i­ment in pres­ence of in­stru­men­ta­tion noise and sys­tem un­cer­tainty.  
slides icon Slides WEOAMA02 [1.721 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA02  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOAMA03 High-Accuracy Small Roll Angle Measurement Method Based on Dual-Grating Diffraction Heterodyne Interferometer laser, GUI, real-time, radiation 163
 
  • S. Tang, M. Li, H. Liang, W.F. Sheng, J. Yang
    IHEP, Beijing, People's Republic of China
  
  Funding: The work is supported by National Natural Science Foundation of China, NSFC (Grant No. 61505213).
Small roll angle (ROLL) is an cru­cial pa­ra­me­ter for the mo­tion per­for­mances of ul­tra-pre­ci­sion guide way often ap­plied in fine me­chan­ics and in­stru­ments of syn­chro­tron ra­di­a­tion, such as long trace pro­filer (LTP). How­ever, it is dif­fi­cult to be mea­sured by con­ven­tional meth­ods in­clud­ing in­ter­fer­om­e­ter and au­to­col­li­ma­tor owing to their low sen­si­tiv­i­ties in axial di­rec­tion. There is an or­thog­o­nal dilemma be­tween mea­sured di­rec­tion and an­gu­lar dis­place­ment plane for ROLL mea­sure­ment. There­fore, a novel method based on dual-grat­ing dif­frac­tion het­ero­dyne in­ter­fer­om­e­ter is pre­sented, which uses the com­bin­ing scheme of dif­frac­tion grat­ing and het­ero­dyne in­ter­fer­om­e­ter to over­come the or­thog­o­nal prob­lem. More­over, the de­sign of dif­fer­en­tial struc­ture with dual-grat­ing and grat­ing in­ter­fer­om­e­ter in­stead of pure in­ter­fer­om­e­ter, is adopted to im­prove the prac­ti­ca­bil­ity against the en­vi­ron­ment, e. g. air fluc­tu­a­tion, in­con­stant ro­ta­tion cen­ter. It has in­her­ited ad­van­tages of high-res­o­lu­tion up to 2nrad, high sam­pling rate up to 50kHz, and con­tact­less by math­e­mat­i­cal mod­el­ing and analy­sis. So, the­o­ret­cial and ex­per­i­men­tal ver­i­fi­ca­tions are both im­ple­mented to its val­i­da­tion. 		 
slides icon Slides WEOAMA03 [2.304 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA03  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOAMA05 FE Model of a Nanopositioning Flexure Stage for Diagnosis of Trajectory Errors photon, simulation, interface, laser 179
 
  • S.P. Kearney, D. Shu
    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 Up­grade pro­ject in­cludes up­grad­ing sev­eral beam­lines, which de­sire nanopo­si­tion­ing and fly-scan ca­pa­bil­i­ties. A step to­wards achiev­ing this is through the use of flex­ure stages with min­i­mal tra­jec­tory er­rors. Typ­i­cally, par­a­sitic mo­tion is on the order of mi­crom­e­ter-level dis­place­ments and tens of mi­cro­ra­dian-level ro­ta­tions [1]. The cause of such er­rors is dif­fi­cult to di­ag­no­sis due to the scale and com­plex­ity of the over­all mech­a­nism. There­fore, an FE model of a flex­ure pivot nanopo­si­tion­ing stage with cen­time­ter-level travel range [1, 2] has been de­vel­oped to aid in tra­jec­tory error di­ag­no­sis. Pre­vi­ous work used an FE model and rel­a­tive error analy­sis to quan­tify the ef­fects of as­sem­bly error on tra­jec­tory er­rors [3]. Rel­a­tive error analy­sis was used due to the dif­fi­culty in val­i­dat­ing a com­plex FE model. This study de­vel­ops an ex­per­i­men­tally val­i­dated FE model of a sin­gle joint to quan­tify the ex­pected error in the full FE model. The full model is then com­pared ex­per­i­men­tally to the flex­ure stage to as­sess the model ac­cu­racy and di­ag­no­sis tra­jec­tory er­rors.
* D. Shu, et al. In Proc. SPIE, vol. 10371, 2017.
** U.S. Patent granted No. 8,957, 567, D. Shu, S. Kearney, and C. Preissner, 2015.
*** S. Kearney and D. Shu. In Proc. SPIE, vol. 10371, 2017.
 
slides icon Slides WEOAMA05 [5.137 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOAMA05  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOPMA05 Application of Industry Recognised Development Tools and Methodologies, such as Six Sigma to Facilitate the Efficient Delivery of Innovative and Robust Engineering Solutions at Synchrotron Facilities synchrotron, hardware, controls, factory 184
 
  • S. A. Macdonell
    DLS, Oxfordshire, United Kingdom
  
  Syn­chro­tron fa­cil­i­ties play a key part in the de­liv­ery of world lead­ing sci­ence to fa­cil­i­tate re­search and de­vel­op­ment across mul­ti­ple fields. The en­abling tech­nol­ogy de­signed by en­gi­neers at these fa­cil­i­ties is cru­cial to their suc­cess. The highly aca­d­e­mic na­ture of Syn­chro­tron fa­cil­i­ties does not al­ways lead to work­ing in the same way as a com­mer­cial en­gi­neer­ing com­pany. How­ever, are the en­gi­neer­ing re­quire­ments at Syn­chro­trons dif­fer­ent to com­mer­cial com­pa­nies? Ex­plor­ing the par­al­lels be­tween re­search and com­mer­cial com­pa­nies, can we show that the tools and method­olo­gies em­ployed could ben­e­fit en­gi­neer­ing de­vel­op­ment at Syn­chro­trons? This paper pro­vides a the­o­ret­i­cal dis­cus­sion on the com­mon­al­ity be­tween en­gi­neer­ing de­vel­op­ments at Syn­chro­tron fa­cil­i­ties com­pared to com­mer­cial com­pa­nies. How method­olo­gies such as De­sign for Six Sigma and in par­tic­u­lar tools such as stake­holder analy­sis, func­tional tree analy­sis, FMEA and DoE could be utilised in the de­sign process at Syn­chro­trons. It also seeks to demon­strate how im­ple­men­ta­tion could aid the de­vel­op­ment of in­no­v­a­tive, ro­bust and ef­fi­cient de­sign of en­gi­neer­ing so­lu­tions to meet the ever-in­creas­ing de­mands of our fa­cil­i­ties.  
slides icon Slides WEOPMA05 [1.633 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA05  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEOPMA06 A Compact and Calibratable von Hamos X-Ray Spectrometer Based on Two Full-Cylinder HAPG Mosaic Crystals for High-Resolution XES optics, GUI, radiation, FEL 189
 
  • I. Holfelder, B. Beckhoff, R. Fliegauf, Y. Kayser, M. Müller, M. Wansleben, J. Weser
    PTB, Berlin, Germany
  
  In high-res­o­lu­tion X-ray Emis­sion Spec­troscopy (XES) crys­tal-based Wave­length-Dis­per­sive Spec­trom­e­ters (WDS) are being ap­plied for char­ac­ter­i­za­tion of nano- and mi­croscaled ma­te­ri­als. Thereby the so called von Hamos geom­e­try pro­vides high de­tec­tion ef­fi­ciency due to sagit­tal fo­cus­ing using cylin­dri­cally bent crys­tals. To max­i­mize the de­tec­tion ef­fi­ciency a full-cylin­der optic can be ap­plied. A novel cal­i­brat­able von Hamos X-ray spec­trom­e­ter based on up to two full-cylin­der op­tics was de­vel­oped at the PTB. To re­al­ize the full-cylin­der geom­e­try Highly An­nealed Py­rolytic Graphite (HAPG) [1] was used. Be­sides its good bend­ing prop­er­ties this mo­saic crys­tal shows highly in­te­grated re­flec­tiv­ity while of­fer­ing low mo­saic­ity en­sur­ing high re­solv­ing power [2]. The spec­trom­e­ter en­ables chem­i­cal spe­ci­a­tion of el­e­ments in an en­ergy range from 2.4 keV up to 18 keV. The de­sign and com­mis­sion­ing of the spec­trom­e­ter will be pre­sented to­gether with first re­sults using syn­chro­tron ra­di­a­tion as ex­ci­ta­tion source. The spec­trom­e­ter com­bines high ef­fi­ciency with high spec­tral res­o­lu­tion (ten times bet­ter than in com­mer­cial WDS sys­tems) in a com­pact arrange­ment also suit­able for lab­o­ra­tory arrange­ments.
[1] H. Legall et al. (2006). Proc. FEL, BESSY FRAAU04, 798-801
[2] M. Gerlach et al. (2015). J. Appl. Cryst. 48, 2015, 1381-1390
 		 
slides icon Slides WEOPMA06 [7.630 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEOPMA06  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPH04 Finite Element Analysis of a Combined White Beam Filter and Visual Screen Using CVD Diamond for the BXDS Beamline undulator, photon, storage-ring, simulation 208
 
  • D.M. Smith, M.J.P. Adam, G.R. Barkway, A.J. Janis
    CLS, Saskatoon, Saskatchewan, Canada
  
  A white beam fil­ter and vi­sual screen are re­quired for the un­du­la­tor beam­line at the Brock­house X-Ray Dif­frac­tion and Scat­ter­ing Sec­tor. Reusing a wa­ter-cooled cop­per pad­dle with a 0.1 mm thick chem­i­cal vapor de­po­si­tion (CVD) di­a­mond foil, a com­bined fil­ter and screen de­sign is pre­sented. The Cana­dian Light Source pre­vi­ously ex­pe­ri­enced fail­ure of CVD di­a­mond fil­ters when ex­posed to high flux den­sity white beam. Fi­nite el­e­ment analy­sis (FEA) was done to de­ter­mine if the CVD di­a­mond will frac­ture under the un­du­la­tor heat load. Con­ser­v­a­tive fail­ure cri­te­ria are se­lected for CVD di­a­mond based on avail­able lit­er­a­ture for the fol­low­ing fail­ure mech­a­nisms: high tem­per­a­ture, ther­mal fa­tigue, and tem­per­a­ture in­duced stress. Four de­signs are an­a­lyzed using FEA mod­els sim­u­lat­ing ef­fects of clamp­ing pres­sure and heat load on the CVD di­a­mond. The sim­u­la­tions are ver­i­fied by op­ti­miz­ing the model mesh, com­par­ing re­sults against hand cal­cu­la­tions, and com­par­ing the­o­ret­i­cal ab­sorbed heat load to sim­u­lated val­ues. De­tails of the mod­el­ing method are re­viewed and re­sults for the dif­fer­ent de­signs eval­u­ated. Sug­ges­tions for fu­ture test­ing of CVD di­a­mond in a syn­chro­tron set­ting will be dis­cussed.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH04  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPH09 Vibrational Stability of a Cryocooled Double Crystal Monochromator at SSRF SRF, radiation, laser, synchrotron-radiation 220
 
  • Y. Fan, H.L. Qin
    SSRF, Shanghai, People's Republic of China
  • Z. L. Li, F. Tao, W. Zhu
    SINAP, Shanghai, People's Republic of China
  
  There is an in­creas­ingly crit­i­cal de­mand on the an­gu­lar sta­bil­ity of dou­ble crys­tal mono­chro­ma­tor (DCM). This work fo­cuses on a method to mea­sure an­gu­lar vi­bra­tion di­rectly at the DCM crys­tals using a dual-fre­quency in­ter­fer­om­e­ter. This method was ap­plied to the off-line test of a newly de­vel­oped cry­ocooled DCM at Shang­hai Syn-chro­tron Ra­di­a­tion Fa­cil­ity (SSRF), which can ob­tain a res­o­lu­tion of 8 nrad. The DCM was then tested on the X-ray Test Line. Both off-line and on-line re­sults were ref­er­enced for DCM struc­ture op­ti­miza­tions. In this paper, the DCM an­gu­lar sta­bil­ity mea­sur­ing method is pre­sented, and de­tailed in­for­ma­tion of the re­sults are shown.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH09  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPH15 Experimental Modal Analysis Vibration Measurement to Inform Engineering Design resonance, software, damping, background 235
 
  • J.H. Kelly
    DLS, Oxfordshire, United Kingdom
  
  Ex­per­i­men­tal Modal Analy­sis was per­formed on an ex­ist­ing 5 de­gree of free­dom mir­ror sys­tem on beam­line I08 at The Di­a­mond Light Source, by im­pact­ing the struc­ture and mea­sur­ing the re­sponse at lo­ca­tions of in­ter­est. Com­mer­cial soft­ware was used to gen­er­ate the fre­quency re­sponse func­tions and mode shape an­i­ma­tions. This ex­per­i­men­tal in­for­ma­tion was used to in­form and op­ti­mise a de­sign it­er­a­tion for a new mir­ror sys­tem. The new mech­a­nism was de­signed, in­stalled and tested on the J08 branch line at The Di­a­mond Light Source to val­i­date the ex­pected im­prove­ments in sta­bil­ity, stiff­ness and res­o­nant fre­quency. The mir­ror sys­tem fun­da­men­tal res­o­nant fre­quency was sig­nif­i­cantly in­creased from 20 Hz to 49 Hz.  
poster icon Poster WEPH15 [0.411 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH15  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPH26 High Rigidity Girder System for the Sirius Machine synchrotron, alignment, damping, storage-ring 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 icon 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)  
 
WEPH29 NSLS-II Vibration Studies to Characterize Beamline Stability operation, detector, ion-source, power-supply 267
 
  • C.J. Spataro, F.C. Lincoln, S.K. Sharma
    BNL, Upton, Long Island, New York, USA
  
  High per­for­mance goals of NSLS-II re­quire strin­gent me­chan­i­cal sta­bil­ity of its in­stru­ments such as BPMs, slits, mir­rors, mono­chro­ma­tors, and de­tec­tors. Me­chan­i­cal sta­bil­ity of these com­po­nents can be com­pro­mised by site-wide as well as local vi­bra­tion sources (pumps, com­pres­sors, etc.). Sev­eral vi­bra­tion stud­ies have been per­formed at NSLS-II at the re­quest of beam­line users. This paper pre­sents the re­sults of these stud­ies high­light­ing sources of vi­bra­tion and mit­i­ga­tion strate­gies.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH29  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
WEPH36 From Plate Screening to Artificial Intelligence: Innovative developments on PROXIMA 2A at Synchrotron SOLEIL synchrotron, detector, GUI, instrumentation 283
 
  • D. Jeangerard, L. Ciccone, D.K. Desjardins, A. Le Jollec, M. Savko, W. E. Shepard
    SOLEIL, Gif-sur-Yvette, France
  • A. Haouz
    Pasteur Institute, Crystallisation and X-ray Diffraction (PF6), Paris, France
  
  PROX­IMA 2A is a high per­for­mance 3rd gen­er­a­tion syn­chro­tron beam­line ded­i­cated to X-ray mi­cro-crys­tal­log­ra­phy on bi­o­log­i­cal macro­mol­e­cules. Since open­ing in March 2013, the ex­per­i­men­tal sta­tion has hosted a large num­ber of users who have col­lected vast amounts of X-ray dif­frac­tion im­ages from lit­er­ally thou­sands of crys­tals. In order to stream­line the through­put, en­hance per­for­mance and add func­tion­al­ity, a num­ber of in­no­v­a­tive de­vel­op­ments have been launched on PROX­IMA 2A. These cover all as­pects of the beam­line, from the prac­ti­cal to the vi­sion­ary: such as the de­sign, fab­ri­ca­tion and im­ple­men­ta­tion of a ded­i­cated high-pre­ci­sion mo­tor­ized stage to screen crys­tal­liza­tion plates for in situ X-ray data col­lec­tions, and the em­ploy­ment ar­ti­fi­cial in­tel­li­gence and com­puter vi­sion tech­nolo­gies for the de­tec­tion of sam­ples under liq­uid ni­tro­gen. Other no­table beam­line pro­jects in­clude the ad­di­tion of a ver­ti­cal trans­la­tion table for the EIGER X 9M de­tec­tor to per­mit the ac­qui­si­tion of ul­tra­high (0.6 Å) res­o­lu­tion X-ray data, the in­cor­po­ra­tion of a minia­tur­ized YAG-cou­pled pho­to­di­ode within a beam­stop and the de­ter­mi­na­tion of the SOC of a re­cently added kappa arm to the go­niome­ter.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-WEPH36  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THOAMA03 Mechanical Engineering Design and Simulation for SPIRAL2 Accelerator @GANIL simulation, target, linac, beam-transport 302
 
  • C. Barthe-Dejean, M. Di Giacomo, P. Gangnant, P. Lecomte, J.F. Leyge, F. Lutton, C. Michel, M. Michel, E. Petit, R.V. Revenko, J.L. Vignet
    GANIL, Caen, France
  
  The SPI­RAL2 pro­ject at GANIL is based on a su­per­con­duct­ing ion con­tin­u­ous wave LINAC with two as­so­ci­ated ex­per­i­men­tal areas named S3 (Super Sep­a­ra­tor Spec­trom­e­ter) and NFS (Neu­tron For Sci­ence). This paper will re­port the main con­tri­bu­tions of Me­chan­i­cal De­sign Group at GANIL to the pro­ject. Me­chan­i­cal en­gi­neers have been highly in­volved since 2005 from the pre-de­sign of the ac­cel­er­a­tor and its de­vel­op­ment until pre­sent to fi­nal­ize the in­stal­la­tion. Dur­ing the de­vel­op­ment phase, de­sign and nu­mer­i­cal sim­u­la­tion were used through­out the com­plete process: from the ion sources, to the LINAC ac­cel­er­a­tor, then through beam trans­port lines to ex­per­i­men­tal halls equipped with de­tec­tors. The en­tire in­stal­la­tion (process, build­ings and sys­tems) is in­te­grated in 3D CAD mod­els. The paper fo­cuses on three equip­ments de­signed in col­lab­o­ra­tion with elec­tron­ics en­gi­neers and physi­cists : the Re­buncher in Mean En­ergy Beam Trans­port line; the In­stru­men­ta­tion Pro­filer SEM and the Tar­get Cham­ber in S3. SPI­RAL2 also has to meet safety re­quire­ments, such as seis­mic haz­ard, there­fore the dy­namic sim­u­la­tions per­formed to demon­strate the me­chan­i­cal strength in case of earth­quake will also be de­tailed.  
slides icon Slides THOAMA03 [5.836 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THOAMA03  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH06 TMO - a New Soft X-Ray Beamline at LCLS II laser, vacuum, optics, diagnostics 349
 
  • J.C. Castagna, L. Amores, M. R. Holmes, J.H. James, T.O. Osipov, P. Walter
    SLAC, Menlo Park, California, USA
  
  LCLS is build­ing 4 new soft X-ray beam­lines with the LCLS-II up­grade. The TMO (Time re­solved Mol­e­c­u­lar Op­ti­cal sci­ence) beam­line aka NEH 1.1 will sup­port many ex-per­i­men­tal tech­niques not cur­rently avail­able at LCLS. The beam­line hinges around 2 main end sta­tions, LAMP a multi con­fig­urable end sta­tion and DREAM, ded­i­cated to COLTRIM type of ex­per­i­men­ta­tion. Both the ex­ist­ing LAMP as well as the newly built DREAM end-sta­tion will be con­fig­ured to take full ad­van­tage of both the high per pulse en­ergy from the cop­per ac­cel­er­a­tor (120 Hz) as well as high av­er­age in­ten­sity and high rep­e­ti­tion rate (up to 100 kHz) from the su­per­con­duct­ing ac­cel­era-tor. Each end sta­tion will have its own fo­cus­ing optic sys­tems (KB Mir­rors) which can focus the beam down to 300 nm, and have laser pump probe ex­per­i­ments ca­pa­bil­ity. Very de­mand­ing re­quire­ments for IR and X-ray over­lap as well as beam sta­bil­ity, make the TMO beam­line a major en­gi­neer­ing chal­lenge. The main com­po­nents of the beam­line (KB op­tics, DREAM end sta­tions and di­ag­nos­tics com­po­nents) are built on gran­ite stands. The build­ing struc-ture is being re­viewed for ther­mal sta­bil­ity. First light on TMO is ex­pected in Feb­ru­ary 2020  
poster icon Poster THPH06 [0.624 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH06  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH09 Design of Indirect X-Ray Detectors for Tomography on the Anatomix Beamline detector, synchrotron, photon, SRF 355
 
  • D.K. Desjardins, A.C. Carcy, J.L. Giorgetta, C. Menneglier, M. Scheel, T. Weitkamp
    SOLEIL, Gif-sur-Yvette, France
  
  ANATOMIX* is a long beam­line for full-field to­mog­ra­phy tech­niques at the French syn­chro­tron SOLEIL [1]. It will op­er­ate in the en­ergy range from 5 to 30 keV, and fea­ture sev­eral op­er­a­tion modes via ver­sa­tile op­tics con­fig­u­ra­tions, in­clud­ing di­rect white beam prop­a­ga­tion. Two method­olog­i­cally dif­fer­ent ex­per­i­men­tal sta­tions will be used: par­al­lel-beam X-ray shad­owg­ra­phy, for spa­tial res­o­lu­tion down to the sub-mi­cron range, and full-field trans­mis­sion X-ray mi­croscopy down to a spa­tial res­o­lu­tion of less than 100 nm. To cover this large panel of ex­per­i­men­tal pos­si­bil­i­ties, the De­tec­tor Group, the Me­chan­i­cal En­gi­neer­ing Group and beam­line team have de­signed four ded­i­cated in­di­rect X-ray de­tec­tor. For pix­els in the sub-mi­cron size range : a mi­cro-to­mog­ra­phy re­volver cam­era for ver­sa­til­ity, a high-ef­fi­ciency cam­era for flux-lim­ited ex­per­i­ments, and a high-res­o­lu­tion cam­era for the largest op­ti­cal mag­ni­fi­ca­tions will be avail­able. For ex­per­i­ments with a large X-ray beam and pixel sizes from sev­eral mi­crons up­ward, a "large-field" cam­era com­pletes the set. We de­scribe these dif­fer­ent as­sem­blies with the de­tailed com­po­nents and ex­pected spec­i­fi­ca­tion of each so­lu­tion.
* Beamline largely funded by the French National Research Agency through the EQUIPEX investment program, NanoimagesX.
[1] T Weitkamp et al 2017 J. Phys.: Conf. Ser. 849 012037 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH09  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH12 Granite Benches for Sirius X-ray Optical Systems alignment, GUI, interface, 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 icon 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)  
 
THPH17 NCD-SWEET Beamline Upgrade detector, optics, controls, electronics 374
 
  • J.B. González Fernández, C. Colldelram, S. Ferrer, A. Fontserè Recuenco, A.A. Gevorgyan, N. Gonzalez, G. Jover-Mañas, C. Kamma-Lorger, M.L. Llonch, M. Malfois, J.C. Martínez Guil, Y. Nikitin, G. Peña, L. Ribó, I. Sics, E. Solano, J. Villanueva
    ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
  
  The SAXS/WAXS Ex­per­i­men­tal End sTa­tion (NCD-SWEET) at ALBA Syn­chro­tron has un­der­gone major im­prove­ments in three main areas, beam per­for­mance, SAXS de­tec­tor data qual­ity and beam­line op­er­abil­ity, in order to per­form state-of-the-art SAXS/WAXS ex­peri-ments. A new chan­nel-cut mono­chro­ma­tor sys­tem has im­proved the beam qual­ity and sta­bil­ity, with cur­rent vi­bra­tion am­pli­tudes under 1% of the beam size. Two sets of re­frac­tive beryl­lium lenses have been in­stalled for fo­cussing the beam. One of the sets al­lows to mi­cro­fo­cus the beam size. Be­sides this, the for­mer SAXS CCD de­tec­tor has been re­placed by a sin­gle-pho­ton count­ing pixel de­tec­tor, a Pil­ta­tus3 S 1M. In the end sta­tion, a full re-de­sign of the me­chan­i­cal el­e­ments with sub-mi­cron res­o­lu­tion move­ments to­gether with the in­stal­la­tion of new equip­ment has been com­pleted, re­sult­ing in an im­proved beam­line con­fig­u­ra­tion, and a faster and safer re­arrange­ment of the flight tube length. New up­graded con­fig­u­ra­tion also al­lows for GISAXS ex­per­i­ments. Fi­nally, other aux­il­iary im­prove­ments have been done in areas like ra­di­a­tion pro­tec­tion, air con­di­tion­ing, health and safety, cable man­age­ment, elec­tron­ics and con­trol.  
poster icon Poster THPH17 [5.848 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH17  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH19 Engineering Design of the XPD & PDF Beamline Sample Environment for Safe Experimental Use of Hazardous Gases FEL, operation, controls, GUI 379
 
  • E. Haas, M. Abeykoon, S. Buda, E.D. Dooryhee, S. Ghose, C. Stelmach, J.T. Trunk
    BNL, Upton, Long Island, New York, USA
  
  Funding: U.S. Department of Energy
The X-ray Pow­der Dif­frac­tion (XPD) and Pair Dis­tri­b­u­tion Func­tion (PDF) beam­lines lo­cated at the 28-ID beam port at NSLS-II re­quire a means for safely sup­ply­ing, con­tain­ing, and ex­haust­ing haz­ardous gases to and from ex­per­i­men­tal sam­ples. These beam­lines plan to use a wide range of flam­ma­ble, toxic, and re­ac­tive gases for in-situ stud­ies of cat­alytic and chem­i­cal re­ac­tions. Since many of the gases are haz­ardous, a low-cost, ro­bust means is needed to safely sup­ply gases to sam­ples, po­si­tion the sam­ples quickly, ac­cu­rately, and re­motely, col­lect scat­tered X-rays over a wide-an­gle with­out dis­tor­tion, and ex­haust the gases safely. Ide­ally, the sam­ple en­vi­ron­ment should also allow rapid sam­ple set-up and change-out. The PDF/XPD sys­tem in­cludes a sam­ple holder, in­ter­nal beam stop, sam­ple cham­ber, and stages that pro­vide eight de­grees of free­dom. A spe­cially-de­signed win­dow is also in­cluded for max­i­mum X-ray trans­mis­sion at min­i­mum cost. Sen­sors, flow me­ter­ing de­vices, and cir­cuitry are in­cluded to pro­vide proper purg­ing, con­trol haz­ardous and di­lu­tion gas flows, and in­te­grate all of the safe­guards needed to as­sure safe op­er­a­tion.
Note to MEDSI reviewers:
"Contributed Oral" presentation is indicated above, however a poster presentation can be generated by contacting the author via email at haas@bnl.gov if this is preferred. 		 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH19  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH28 The Development of PAL-XFEL Beamline FEL, detector, vacuum, electron 397
 
  • S.H. Kim, I. Eom, S-M. Hwang, H.J. Hyun, K.S. Kim, M-J. Kim, S. Kim, S.N. Kim, S. Kim, C. Lee, G.S. Park, J. Park, J.K. Park, S.Y. Rah
    PAL, Pohang, Republic of Korea
  
  Po­hang Ac­cel­er­a­tor Lab­o­ra­tory X-ray Free Elec­tron Laser(PAL-XFEL) is a re­search fa­cil­ity, which is de­signed to gen­er­ate ex­tremely in­tense (as­sum­ing 1x1012 pho­ton/pulse at 12.4 keV) and ul­tra-short (10-200 fem­tosec­ond) pulsed X-rays. Now two beam­lines were con­structed, the one is hard X-ray and the other is soft X-ray. The beam­line is con­sist of UH (Un­du­la­tor hall) and OH (Op­ti­cal hall), EH (Ex­per­i­men­tal hall). The UH is usu­ally the same as the front end of a beam­line, and OH has the same func­tion as PTL (Pho­ton Trans­fer Line). We have two hutches in­clud­ing HXPP and HCXI in hard X-ray beam­line. The two hutches are con­nected each other, and shar­ing main op­tics (Mir­rors and DCM, etc). PAL-XFEL is a very pre­cise fa­cil­ity and has very large heat power, so ther­mal and struc­tural analy­sis as well as vi­bra­tion analy­sis is es­sen­tial. Now many vac­uum com­po­nents of beam­line were in­stalled and com­pleted the test of per­for­mance.  
poster icon Poster THPH28 [1.888 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH28  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH31 Design of a flexible RIXS Setup detector, alignment, vacuum, 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 icon 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)  
 
THPH36 Engineering Challenges for the NEH2.2 Beamline at LCLS-II laser, detector, scattering, photon 409
 
  • F.P. O'Dowd, D. Cocco, G.L. Dakovski, J. Defever, S. Guillet, C.L. Hardin, D.S. Morton, T.O. Osier, M.A. Owens, D.W. Rich, L. Zhang
    SLAC, Menlo Park, California, USA
  
  SLAC Na­tional Ac­cel­er­a­tor Lab­o­ra­tory is de­vel­op­ing LCLS-II, a su­per­con­duct­ing lin­ear ac­cel­er­a­tor based FEL ca­pa­ble of rep­e­ti­tion rates up to 1MHz. The NEH2.2 In­stru­ment at LCLS-II will use this com­bi­na­tion of ex­cep­tion­ally high flux of mono­chro­matic pho­tons to achieve mul­ti­di­men­sional and co­her­ent X-ray tech­niques that are pos­si­ble only with X-ray lasers. The chal­lenges, which em­anate from de­liv­er­ing the beam from the sub-base­ment level to the base­ment of the Near Ex­per­i­men­tal Hall (NEH) along with the strin­gent re­quire­ments for pro­vid­ing a sta­ble beam at the in­ter­ac­tion points, ne­ces­si­tate unique en­gi­neer­ing so­lu­tions. With this paper we pre­sent the con­cep­tual de­sign for the NEH2.2 In­stru­ment along with an overview of the R&D pro­gram re­quired to val­i­date de­sign per­for­mance. Fur­ther­more, it will ad­di­tion­ally show the de­sign of the pro­posed Liq­uid Jet End­sta­tion (LJE) and Res­o­nant In­elas­tic X-Ray Scat­ter­ing End­sta­tion (RIXS) that will be in­stalled on the beam­line. After in­tro­duc­ing the con­text and lay­out of the beam­line, this paper will focus on the tech­ni­cal chal­lenges and pre­sent the me­chan­i­cal de­sign so­lu­tions adopted for beam de­liv­ery and other strate­gic com­po­nents.  
poster icon Poster THPH36 [2.220 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2018-THPH36  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THPH38 Design & Development of an Innovative 6 Axis Sample Manipulator. FEL, shielding, 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)