Inclined monochromator for high heat-load synchrotron x-ray radiation
Abstract
A double crystal monochromator is described including two identical, parallel crystals, each of which is cut such that the normal to the diffraction planes of interest makes an angle less than 90 degrees with the surface normal. Diffraction is symmetric, regardless of whether the crystals are symmetrically or asymmetrically cut, enabling operation of the monochromator with a fixed plane of diffraction. As a result of the inclination of the crystal surface, an incident beam has a footprint area which is elongated both vertically and horizontally when compared to that of the conventional monochromator, reducing the heat flux of the incident beam and enabling more efficient surface cooling. Because after inclination of the crystal only a fraction of thermal distortion lies in the diffraction plane, slope errors and the resultant misorientation of the diffracted beam are reduced. 11 figures.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 5253919
- Patent Number(s):
- 5287395
- Application Number:
- PPN: US 7-909323
- Assignee:
- Dept. of Energy, Washington, DC ()
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 6 Jul 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; MONOCHROMATORS; DESIGN; ACCELERATOR FACILITIES; SYNCHROTRON RADIATION SOURCES; X RADIATION; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; RADIATION SOURCES; RADIATIONS; 430303* - Particle Accelerators- Experimental Facilities & Equipment
Citation Formats
Khounsary, A M. Inclined monochromator for high heat-load synchrotron x-ray radiation. United States: N. p., 1994.
Web.
Khounsary, A M. Inclined monochromator for high heat-load synchrotron x-ray radiation. United States.
Khounsary, A M. Tue .
"Inclined monochromator for high heat-load synchrotron x-ray radiation". United States.
@article{osti_5253919,
title = {Inclined monochromator for high heat-load synchrotron x-ray radiation},
author = {Khounsary, A M},
abstractNote = {A double crystal monochromator is described including two identical, parallel crystals, each of which is cut such that the normal to the diffraction planes of interest makes an angle less than 90 degrees with the surface normal. Diffraction is symmetric, regardless of whether the crystals are symmetrically or asymmetrically cut, enabling operation of the monochromator with a fixed plane of diffraction. As a result of the inclination of the crystal surface, an incident beam has a footprint area which is elongated both vertically and horizontally when compared to that of the conventional monochromator, reducing the heat flux of the incident beam and enabling more efficient surface cooling. Because after inclination of the crystal only a fraction of thermal distortion lies in the diffraction plane, slope errors and the resultant misorientation of the diffracted beam are reduced. 11 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 15 00:00:00 EST 1994},
month = {Tue Feb 15 00:00:00 EST 1994}
}