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MOPE30 |
The Development of CuCrZr High Heat Load Absorber in TPS |
77 |
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- I.C. Sheng, C.K. Chan, C.-C. Chang, C. Shueh, L.H. Wu
NSRRC, Hsinchu, Taiwan
- S.K. Sharma
BNL, Upton, Long Island, New York, USA
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TPS project in National Synchrotron Radiation Research Center (NSRRC) in Taiwan has reached 500mA design goal. Several upgrades and design enhancements is also under development. CuCrZr copper alloy material has been selected to examine its UHV compatibility, machinability and high heat load sustainability. Most importantly, the absorber is made entirely by CuCrZr (including two end flanges) and installed in the mid-section of double minimum of tandem EPU48 undulators to shadow beam miss-steered synchrotron radiation from upstream EPU. Both the result and fabrication time (without brazing) are promising.
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Poster MOPE30 [0.547 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-MEDSI2016-MOPE30
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About • |
paper received ※ 06 September 2016 paper accepted ※ 19 September 2016 issue date ※ 22 June 2017 |
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TUPE31 |
Manufacturing of Photon Beam-Intercepting Components from CuCrZr |
233 |
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- F.A. DePaola, C. Amundsen, S.K. Sharma
BNL, Upton, Long Island, New York, USA
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Photon beam-intercepting components in synchrotron light sources have usually been made as water-cooled Glidcop bodies brazed to stainless steel conflate flanges. This fabrication method involves many manufacturing steps which result in increased cost, long procurement time and lower manufacturing reliability. A new design approach was recently proposed which simplifies fabrication by eliminating brazing and utilizes a readily available copper alloy, CuCrZr. This paper describes the manufacturing experience gained at NSLS-II from fabricating many components of this new design. Results of an investigation of various techniques for joining CuCrZr to itself and to SS304 and AL-6061 are also presented.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-MEDSI2016-TUPE31
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About • |
paper received ※ 09 September 2016 paper accepted ※ 15 September 2016 issue date ※ 22 June 2017 |
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TUPE32 |
A Girder-Free Magnet Support System Design |
236 |
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- S.K. Sharma
BNL, Upton, Long Island, New York, USA
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Magnet support systems for the new light sources are required to satisfy several rigorous performance specifications. The support system must be rigid so that its static deflection under its own weight and the combined weight of the magnets is small and repeatable. For vibration stability the lowest natural frequency of the magnet-support assembly should be greater than 50 Hz. To meet thermal stability requirements it is desirable to minimize bending deformation of the support system when subjected to temperature changes. In addition, the magnet support system should be easy to transport, easy to align, and cost effective. Altogether these requirements are difficult to satisfy, especially if the main structural component of the support system is a girder of length greater than 3 meters. In this paper we propose a magnet support system design consisting of column-type supports joined by removable C-beams. The column-type supports provide a superior stability performance without compromising the alignment capability. Analysis results are presented to characterize the performance of this support system.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-MEDSI2016-TUPE32
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About • |
paper received ※ 09 September 2016 paper accepted ※ 15 September 2016 issue date ※ 22 June 2017 |
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TUPE33 |
NSLS-II Beam Aperture Slit Vibration Studies |
239 |
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- C.J. Spataro, C. Amundsen, H. Bassan, S.K. Sharma
BNL, Upton, Long Island, New York, USA
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Beam aperture slits mounted on stepper-motor driven X-Y stages are used in NSLS-II frontends to define the beam size and to limit thermal loads on downstream optical components. The X-Y stages have positional and resolution requirements of 1 µm and 0.1 µm, respectively. This is achieved by micro-stepping the stepper motor by a Delta-Tau GeoBrick-LV-NSLS-II controller. During the initial operation of the X-Y stages unacceptable levels of vibration when the stages were in motion, and an intermittent sharp squealing when they were at rest, were discovered. In this paper we present the studies that were undertaken to investigate these issues and the solutions that were implemented.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-MEDSI2016-TUPE33
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About • |
paper received ※ 09 September 2016 paper accepted ※ 23 September 2016 issue date ※ 22 June 2017 |
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WEBA03 |
Recent Progress on the Design of High-Heat-Load Components |
277 |
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- S.K. Sharma, C. Amundsen, F.A. DePaola, F.C. Lincoln, J.L. Tuozzolo
BNL, Upton, Long Island, New York, USA
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A new design was recently proposed for the high power masks and slits of the front-ends at the 2014 MEDSI Conference. The main features of the new design are integrated knife edges in high conductivity copper alloys, interception of the photon beam only on horizontal surfaces, replacing Glidcop® with readily available CuCrZr, and thermal optimization with internal fins. Numerous components based on this design have been built for NSLS-II front-ends and some of the design features have been incorporated into other high-heat-load components such as beamline masks and crotch absorbers. In this paper we describe recent progress at NSLS-II in further advancing this design approach by FE analysis, fabrication and testing.
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Slides WEBA03 [4.523 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-MEDSI2016-WEBA03
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About • |
paper received ※ 09 September 2016 paper accepted ※ 16 September 2016 issue date ※ 22 June 2017 |
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