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Title: Broadband high resolution X-ray spectral analyzer

Abstract

A broad bandwidth high resolution x-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces x-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available x-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for x-ray microanalysis or in research applications such as laboratory and astrophysical x-ray and particle spectroscopy.

Inventors:
 [1];  [1];  [2];  [3];  [4]
  1. (Berkeley, CA)
  2. (Livermore, CA)
  3. (Lafayette, CA)
  4. (Pinole, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
871690
Patent Number(s):
5777336
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
broadband; resolution; x-ray; spectral; analyzer; broad; bandwidth; fluorescence; spectrometer; performance; superior; currently; available; consists; array; microcalorimeters; 95; quantum; efficiency; kev; produces; spectra; energy; 10; obtained; input; count; rates; element; 50; hz; real-time; analog; pulse; processing; thermal; pile-up; rejection; matched; spectrometers; detectors; incorporated; compact; portable; cryogenic; refrigerator; analytical; spectroscopy; applications; tool; microanalysis; laboratory; astrophysical; particle; x-ray spectrometer; energy resolution; currently available; broad band; count rate; broad bandwidth; quantum efficiency; count rates; x-ray fluorescence; pulse processing; resolution x-ray; spectroscopy applications; cryogenic refrigerator; analytical spectroscopy; array element; /250/

Citation Formats

Silver, Eric H., Legros, Mark, Madden, Norm W., Goulding, Fred, and Landis, Don. Broadband high resolution X-ray spectral analyzer. United States: N. p., 1998. Web.
Silver, Eric H., Legros, Mark, Madden, Norm W., Goulding, Fred, & Landis, Don. Broadband high resolution X-ray spectral analyzer. United States.
Silver, Eric H., Legros, Mark, Madden, Norm W., Goulding, Fred, and Landis, Don. Thu . "Broadband high resolution X-ray spectral analyzer". United States. https://www.osti.gov/servlets/purl/871690.
@article{osti_871690,
title = {Broadband high resolution X-ray spectral analyzer},
author = {Silver, Eric H. and Legros, Mark and Madden, Norm W. and Goulding, Fred and Landis, Don},
abstractNote = {A broad bandwidth high resolution x-ray fluorescence spectrometer has a performance that is superior in many ways to those currently available. It consists of an array of 4 large area microcalorimeters with 95% quantum efficiency at 6 keV and it produces x-ray spectra between 0.2 keV and 7 keV with an energy resolution of 7 to 10 eV. The resolution is obtained at input count rates per array element of 10 to 50 Hz in real-time, with analog pulse processing and thermal pile-up rejection. This performance cannot be matched by currently available x-ray spectrometers. The detectors are incorporated into a compact and portable cryogenic refrigerator system that is ready for use in many analytical spectroscopy applications as a tool for x-ray microanalysis or in research applications such as laboratory and astrophysical x-ray and particle spectroscopy.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

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