Towards a wavefront-preservation X-ray crystal monochromator for high-repetition-rate FELs

Zhang, Lin; Seaberg, Matthew; Yavaş, Hasan

doi:10.1107/s1600577523004216

Towards a wavefront-preservation X-ray crystal monochromator for high-repetition-rate FELs

Journal Article · Thu Jun 15 00:00:00 EDT 2023 · Journal of Synchrotron Radiation (Online)

DOI:https://doi.org/10.1107/s1600577523004216· OSTI ID:1975667

Zhang, Lin ^[1]; Seaberg, Matthew ^[2]; Yavaş, Hasan ^[2]

SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); SLAC
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

The wavefront preservation of coherent X-ray free-electron laser beams is pushing the requirement on the quality and performance of X-ray optics to an unprecedented level. The Strehl ratio can be used to quantify this requirement. In this paper, the criteria for thermal deformation of the X-ray optics are formulated, especially for crystal monochromators. To preserve the X-ray wavefront, the standard deviation of the height error should be sub-nm for mirrors and less than 25 pm for crystal monochromators. Cryocooled silicon crystals combined with two techniques can be used to achieve this level of performance for monochromator crystals: (1) using a focusing element to compensate the second-order component of the thermal deformation; (2) introducing a cooling pad between the cooling block and silicon crystal and optimizing the effective cooling temperature. Each of these techniques allows the thermal deformation in standard deviation of the height error to be reduced by an order of magnitude. As an example, for the LCLS-II-HE Dynamic X-ray Scattering instrument, the criteria on thermal deformation of a high-heat-load monochromator crystal can be achieved for a 100 W SASE FEL beam. Wavefront propagation simulations confirm that the reflected beam intensity profile is satisfactory on both the peak power density and focused beam size.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-76SF00515

OSTI ID:: 1975667

Journal Information:: Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 4 Vol. 30; ISSN 1600-5775

Publisher:: International Union of CrystallographyCopyright Statement

Country of Publication:: United States

Language:: English

References (19)

Cryogenic cooling monochromators for the SPring-8 undualtor beamlines Mochizuki, T.; Kohmura, Y.; Awaji, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 467-468 https://doi.org/10.1016/S0168-9002(01)00436-3	journal	July 2001
Optimization and theoretical performance of an adaptive x-ray mirror Susini, J.; Förstner, G.; Zhang, L. Review of Scientific Instruments, Vol. 63, Issue 1 https://doi.org/10.1063/1.1142720	journal	January 1992
Cryogenic cooling of monochromators Marot, G.; Rossat, M.; Freund, A. Review of Scientific Instruments, Vol. 63, Issue 1 https://doi.org/10.1063/1.1142736	journal	January 1992
Compact active/adaptive x‐ray mirror: Bimorph piezoelectric flexible mirror Susini, J.; Labergerie, D.; Zhang, L. Review of Scientific Instruments, Vol. 66, Issue 2 https://doi.org/10.1063/1.1145715	journal	February 1995
A high efficiency and low vibration liquid nitrogen cooling system for silicon crystal based x-ray optics Lee, L.; Cheng, X. C.; Zhang, L. Review of Scientific Instruments, Vol. 91, Issue 10 https://doi.org/10.1063/5.0016119	journal	October 2020
Thermal distortion minimization by geometry optimization for water-cooled white beam mirror or multilayer optics Zhang, L.; Barrett, R.; Friedrich, K. Journal of Physics: Conference Series, Vol. 425, Issue 5 https://doi.org/10.1088/1742-6596/425/5/052029	journal	March 2013
Coherent X-Ray Optics Paganin, David Oxford University Press https://doi.org/10.1093/acprof:oso/9780198567288.001.0001	book	January 2006
The historical development of cryogenically cooled monochromators for third-generation synchrotron radiation sources Bilderback, Donald H.; Freund, Andreas K.; Knapp, Gordon S. Journal of Synchrotron Radiation, Vol. 7, Issue 2 https://doi.org/10.1107/S0909049500000650	journal	March 2000
Performance limits of indirectly cryogenically cooled silicon monochromators – experimental results at the APS Lee, Wah-Keat; Fezzaa, Kamel; Fernandez, Patricia Journal of Synchrotron Radiation, Vol. 8, Issue 1 https://doi.org/10.1107/S0909049500013868	journal	January 2001
The performance of a cryogenically cooled monochromator for an in-vacuum undulator beamline Zhang, Lin; Lee, Wah-Keat; Wulff, Michael Journal of Synchrotron Radiation, Vol. 10, Issue 4 https://doi.org/10.1107/S0909049503012135	journal	June 2003
Thermal deformation of cryogenically cooled silicon crystals under intense X-ray beams: measurement and finite-element predictions of the surface shape Zhang, Lin; Sánchez del Río, Manuel; Monaco, Giulio Journal of Synchrotron Radiation, Vol. 20, Issue 4 https://doi.org/10.1107/S0909049513009436	journal	May 2013
Performance limits of direct cryogenically cooled silicon monochromators – experimental results at the APS Lee, Wah-Keat; Fernandez, Patricia; Mills, Dennis M. Journal of Synchrotron Radiation, Vol. 7, Issue 1 https://doi.org/10.1107/S0909049599014478	journal	January 2000
Anisotropic elasticity of silicon and its application to the modelling of X-ray optics Zhang, Lin; Barrett, Raymond; Cloetens, Peter Journal of Synchrotron Radiation, Vol. 21, Issue 3 https://doi.org/10.1107/S1600577514004962	journal	April 2014
Optimizing X-ray mirror thermal performance using matched profile cooling Zhang, Lin; Cocco, Daniele; Kelez, Nicholas Journal of Synchrotron Radiation, Vol. 22, Issue 5 https://doi.org/10.1107/S1600577515013090	journal	August 2015
Cryogenic cooled silicon-based x-ray optical elements: heat load limit Zhang, Lin SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, SPIE Proceedings https://doi.org/10.1117/12.163803	conference	November 1993
High heat load monochromator development at the Advanced Photon Source Lee, Wah Keat Optical Engineering, Vol. 34, Issue 2 https://doi.org/10.1117/12.194621	journal	February 1995
Thermal management of next-generation contact-cooled synchrotron x-ray mirrors Khounsary, Ali M. SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, SPIE Proceedings https://doi.org/10.1117/12.370114	conference	November 1999
Memory and CPU efficient computation of the Fresnel free-space propagator in Fourier optics simulations Chubar, Oleg; Celestre, Rafael Optics Express, Vol. 27, Issue 20 https://doi.org/10.1364/OE.27.028750	journal	January 2019
Adaptive shape control of wavefront-preserving X-ray mirrors with active cooling and heating Cocco, Daniele; Hardin, Corey; Morton, Daniel Optics Express, Vol. 28, Issue 13 https://doi.org/10.1364/OE.394310	journal	January 2020

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