| Title |
Thermal Management and Crystal Clamping Concepts for the New High-Dynamics DCM for Sirius |
| Authors |
- M. Saveri Silva, R.R. Geraldes, A. Gilmour
LNLS, Campinas, Brazil
- T.A.M. Ruijl, R.M. Schneider
MI-Partners, Eindhoven, The Netherlands
|
| Abstract |
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 generation machines, with their small emittances, start to bring about higher stability performance requirements, in spite of factors as high power loads, power load variation, and vibration sources. A new high-dynamics DCM (Double Crystal Monochromator) is under development at the Brazilian Light Source for the Sirius EMA beamline (Extreme Condition X-ray Methods of Analysis). In order to achieve high-bandwidth control and stability of a few nrad, as well as to prevent unpredicted mounting and clamping distortions, new solutions are proposed for crystal fixation and thermal management. Since the design is based on flexural elements, it should be indeed highly predictable, so that the work was developed using mechanical and thermal FEA, including CFD. Efforts were made to predict thermal boundaries associated with the synchrotron beam, including incident, diffracted and scattered power, for which the undulator spectrum was employed in the Monte Carlo simulation package - FLUKA *.
|
| Footnotes & References |
* "FLUKA: a multi-particle transport code", A. Ferrari, P.R. Sala, A. Fasso‘, and J. Ranft, CERN-2005-10 (2005), INFN/TC05/11, SLAC-R-773 |
| Funding |
Brazilian Ministry of Science, Technology and Inovation |
| Paper |
download TUPE15.PDF [0.694 MB / 4 pages] |
| Poster |
download TUPE15_POSTER.PDF [2.630 MB] |
| Export |
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※ EndNote |
| Conference |
MEDSI2016 |
| Series |
Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation Conference (9th) |
| Location |
Barcelona, Spain |
| Date |
11-16 September 2016 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Joan Casas (ALBA-CELLS, Cerdanyola del Vallès, Spain); Volker RW Schaa (GSI, Darmstadt, Germany); Isidre Costa (ALBA-CELLS, Cerdanyola del Vallès, Spain); David López (ALBA-CELLS, Cerdanyola del Vallès, Spain); Montserrat Prieto (ALBA-CELLS, Cerdanyola del Vallès, Spain) |
| Online ISBN |
978-3-95450-188-5 |
| Received |
08 September 2016 |
| Accepted |
15 September 2016 |
| Issue Date |
22 June 2017 |
| DOI |
doi:10.18429/JACoW-MEDSI2016-TUPE15 |
| Pages |
194-197 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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