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Title: Sagittal crystal focusing of undulator radiation with high heat load inclined crystals

Abstract

Sagittal focusing of undulator radiation is shown to be compatible with the proposed inclined double-crystal monochromator geometry for heat load reduction. The focusing aberrations are found to be negligible for typical undulator-beam divergences over a range of magnifications from 1:2 to 6:1 and energies from 3 to 40 keV. The inclined geometry reduces the required signal sagittal curvature of the focusing crystal compared to focusing with conventional symmetric crystals; hence, focusing is possible at higher X-ray energies and with less anticlastic bending. In addition, anticlastic stiffening ribs project a smaller footprint to the beam so that the achievable focal spot size is potentially better than with conventional symmetrically cut crystals. 16 refs.

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
7270964
Report Number(s):
CONF-920792-13
ON: DE92017165
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: SPIE international symposium on optical applied science and engineering, San Diego, CA (United States), 19-24 Jul 1992
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 36 MATERIALS SCIENCE; CRYSTALS; PHYSICAL RADIATION EFFECTS; SYNCHROTRON RADIATION; FOCUSING; DEFECTS; RADIATION HEATING; BREMSSTRAHLUNG; ELECTROMAGNETIC RADIATION; HEATING; RADIATION EFFECTS; RADIATIONS; 430303* - Particle Accelerators- Experimental Facilities & Equipment; 360605 - Materials- Radiation Effects

Citation Formats

Ice, G E, and Sparks, C J. Sagittal crystal focusing of undulator radiation with high heat load inclined crystals. United States: N. p., 1992. Web.
Ice, G E, & Sparks, C J. Sagittal crystal focusing of undulator radiation with high heat load inclined crystals. United States.
Ice, G E, and Sparks, C J. Wed . "Sagittal crystal focusing of undulator radiation with high heat load inclined crystals". United States.
@article{osti_7270964,
title = {Sagittal crystal focusing of undulator radiation with high heat load inclined crystals},
author = {Ice, G E and Sparks, C J},
abstractNote = {Sagittal focusing of undulator radiation is shown to be compatible with the proposed inclined double-crystal monochromator geometry for heat load reduction. The focusing aberrations are found to be negligible for typical undulator-beam divergences over a range of magnifications from 1:2 to 6:1 and energies from 3 to 40 keV. The inclined geometry reduces the required signal sagittal curvature of the focusing crystal compared to focusing with conventional symmetric crystals; hence, focusing is possible at higher X-ray energies and with less anticlastic bending. In addition, anticlastic stiffening ribs project a smaller footprint to the beam so that the achievable focal spot size is potentially better than with conventional symmetrically cut crystals. 16 refs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Conference:
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