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Title: X-ray imaging crystal spectrometer for extended X-ray sources

Abstract

Spherically or toroidally curved, double focusing crystals are used in a spectrometer for X-ray diagnostics of an extended X-ray source such as a hot plasma produced in a tokomak fusion experiment to provide spatially and temporally resolved data on plasma parameters using the imaging properties for Bragg angles near 45. For a Bragg angle of 45.degree., the spherical crystal focuses a bundle of near parallel X-rays (the cross section of which is determined by the cross section of the crystal) from the plasma to a point on a detector, with parallel rays inclined to the main plain of diffraction focused to different points on the detector. Thus, it is possible to radially image the plasma X-ray emission in different wavelengths simultaneously with a single crystal.

Inventors:
 [1];  [2];  [3];  [4];  [5];  [1];  [1]
  1. Princeton, NJ
  2. Jerusalem, IL
  3. Bordentown, NJ
  4. Lawrenceville, NJ
  5. Cranbury, NJ
Issue Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
OSTI Identifier:
873852
Patent Number(s):
6259763
Assignee:
United States of America as represented by United States Department (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
x-ray; imaging; crystal; spectrometer; extended; sources; spherically; toroidally; curved; double; focusing; crystals; diagnostics; source; hot; plasma; produced; tokomak; fusion; experiment; provide; spatially; temporally; resolved; data; parameters; properties; bragg; angles; near; 45; angle; degree; spherical; focuses; bundle; parallel; x-rays; section; determined; detector; rays; inclined; main; plain; diffraction; focused; radially; image; emission; wavelengths; simultaneously; single; hot plasma; plasma produced; ray imaging; x-ray source; single crystal; x-ray imaging; x-ray emission; plasma parameters; x-ray sources; tokomak fusion; extended x-ray; near parallel; parallel x-ray; /378/

Citation Formats

Bitter, Manfred L, Fraenkel, Ben, Gorman, James L, Hill, Kenneth W, Roquemore, A Lane, Stodiek, Wolfgang, and von Goeler, Schweickhard E. X-ray imaging crystal spectrometer for extended X-ray sources. United States: N. p., 2001. Web.
Bitter, Manfred L, Fraenkel, Ben, Gorman, James L, Hill, Kenneth W, Roquemore, A Lane, Stodiek, Wolfgang, & von Goeler, Schweickhard E. X-ray imaging crystal spectrometer for extended X-ray sources. United States.
Bitter, Manfred L, Fraenkel, Ben, Gorman, James L, Hill, Kenneth W, Roquemore, A Lane, Stodiek, Wolfgang, and von Goeler, Schweickhard E. Mon . "X-ray imaging crystal spectrometer for extended X-ray sources". United States. https://www.osti.gov/servlets/purl/873852.
@article{osti_873852,
title = {X-ray imaging crystal spectrometer for extended X-ray sources},
author = {Bitter, Manfred L and Fraenkel, Ben and Gorman, James L and Hill, Kenneth W and Roquemore, A Lane and Stodiek, Wolfgang and von Goeler, Schweickhard E},
abstractNote = {Spherically or toroidally curved, double focusing crystals are used in a spectrometer for X-ray diagnostics of an extended X-ray source such as a hot plasma produced in a tokomak fusion experiment to provide spatially and temporally resolved data on plasma parameters using the imaging properties for Bragg angles near 45. For a Bragg angle of 45.degree., the spherical crystal focuses a bundle of near parallel X-rays (the cross section of which is determined by the cross section of the crystal) from the plasma to a point on a detector, with parallel rays inclined to the main plain of diffraction focused to different points on the detector. Thus, it is possible to radially image the plasma X-ray emission in different wavelengths simultaneously with a single crystal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

Works referenced in this record:

The Use of a Toroidal Mirror as a Focusing Element for a Stigmatic Grazing Incidence Spectrometer
journal, March 1979