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Title: Design of a Cryo-Cooled Artificial Channel-Cut Crystal Monochromator for the European XFEL

Abstract

An artificial channel-cut crystal monochromator for the hard X-Ray beamlines of SASE 1&2, cryogenically cooled by the so-called pulse tube cooler (cryorefrigerator), is currently under development at the European XFEL (http://www.xfel.eu/). The fabrication is on-going. We present here the crystal optical consideration and the novel cooling configuration, according to the X-Ray FEL pulses proprieties. The mechanical design improvements are pointed out as well to implement such kind of monochromator based on the previous similar design.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1336949
DOE Contract Number:
AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 12th International Conference on Synchrotron Radiation Instrumentation , 07/06/15 - 07/10/15, New York, NY
Country of Publication:
United States
Language:
English
Subject:
XFEL; monochromator

Citation Formats

Dong, Xiaohao, Shu, Deming, and Sinn, Harald. Design of a Cryo-Cooled Artificial Channel-Cut Crystal Monochromator for the European XFEL. United States: N. p., 2016. Web. doi:10.1063/1.4952899.
Dong, Xiaohao, Shu, Deming, & Sinn, Harald. Design of a Cryo-Cooled Artificial Channel-Cut Crystal Monochromator for the European XFEL. United States. doi:10.1063/1.4952899.
Dong, Xiaohao, Shu, Deming, and Sinn, Harald. Wed . "Design of a Cryo-Cooled Artificial Channel-Cut Crystal Monochromator for the European XFEL". United States. doi:10.1063/1.4952899.
@article{osti_1336949,
title = {Design of a Cryo-Cooled Artificial Channel-Cut Crystal Monochromator for the European XFEL},
author = {Dong, Xiaohao and Shu, Deming and Sinn, Harald},
abstractNote = {An artificial channel-cut crystal monochromator for the hard X-Ray beamlines of SASE 1&2, cryogenically cooled by the so-called pulse tube cooler (cryorefrigerator), is currently under development at the European XFEL (http://www.xfel.eu/). The fabrication is on-going. We present here the crystal optical consideration and the novel cooling configuration, according to the X-Ray FEL pulses proprieties. The mechanical design improvements are pointed out as well to implement such kind of monochromator based on the previous similar design.},
doi = {10.1063/1.4952899},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 27 00:00:00 EDT 2016},
month = {Wed Jul 27 00:00:00 EDT 2016}
}

Conference:
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  • An artificial channel-cut crystal monochromator for the hard X-Ray beamlines of SASE 1&2, cryogenically cooled by the so-called pulse tube cooler (cryorefrigerator), is currently under development at the European XFEL ( http://www.xfel.eu/ ). The fabrication is on-going. We present here the crystal optical consideration and the novel cooling configuration, according to the X-Ray FEL pulses proprieties. The mechanical design improvements are pointed out as well to implement such kind of monochromator based on the previous similar design.
  • We present design and characterization results of a novel ultra-high-vacuum-compatible artificial channel-cut monochromator that has been installed at the undulator beamline 8-ID-I at the Advanced Photon Source. The monochromator has been designed to meet the challenging stability and optical requirements of the x-ray photon correlation spectroscopy program hosted at this beamline. In particular, the device incorporates a novel in-vacuum sine-bar drive mechanism for the combined pitch motion of the two crystals and a flexure-based high-stiffness weak-link mechanism for fine tuning the pitch and roll of the second crystal relative to the first crystal.
  • A novel ultra-high-vacuum (UHV)-compatible x-ray monochromator has been designed and commissioned at the undulator beamline 8-ID-I at the Advanced Photon Source (APS) for x-ray photon correlation spectroscopy applications. To meet the challenging stability and x-ray optical requirements, the monochromator integrates two new precision angular positioning mechanisms into its crystal optics motion control system: An overconstrained weak-link mechanism that enables the positioning of an assembly of two crystals to achieve the same performance as a single channel-cut crystal, the so called 'artificial channel-cut crystal'; A ceramic motor driven in-vacuum sine-bar mechanism for the double crystal combined pitch motion. The mechanical designmore » of the monochromator, as well as the test results of its positioning performance are presented in this paper.« less
  • No abstract prepared.
  • We present initial characterization results of a novel ultra-high-vacuum-compatible artificial channel-cut monochromator that has been installed as part of undulator beamline 8-ID-I at the Advanced Photon Source. We present details of the mechanical design and control-system implementation of the new device. The monochromator has been designed to meet the challenging stability and optical requirements of the x-ray photon correlation spectroscopy program hosted at this beamline. In particular, the device incorporates a novel in-vacuum sine-bar drive mechanism for the combined pitch motion of the two crystals and a flexure-based high-stiffness weak-link mechanism for fine tuning the pitch and roll of themore » second crystal relative to the first crystal.« less