A high counting rate parallel-plate gas proportional counter for fluorescence extended x-ray-absorption fine structure studies

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1142622· OSTI ID:5645375

Smith, A D; Padmore, H A; Buksh, P A ^[1]

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1. Daresbury Laboratory, Warrington, Cheshire WA4 4AD (United Kingdom)

Gas proportional counters (GPCs) are well suited for fluorescence extended x-ray-absorption fine structure (EXAFS) experiments in the soft x-ray ({lt}4 keV) region. They have a near unity detection efficiency and offer good energy resolution. Of the different types of GPC, the parallel-plate device is an attractive option for use with synchrotron radiation beam lines where its intrinsically high count rate permits optimum use of the high photon flux available. The development of a parallel-plate gas proportional counter for use on soft x-ray beam lines at the Daresbury synchrotron source is described. This device is demonstrated to have a counting rate in excess of 1 MHz, and data are presented on its performance including its energy resolution, long-term gain stability, and sample EXAFS spectra.

• OSTI ID: 5645375
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 63:1; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303 -- Particle Accelerators-- Experimental Facilities & Equipment
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DESIGN
DETECTION
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
IONIZING RADIATIONS
MEASURING INSTRUMENTS
PERFORMANCE
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
RADIATIONS
SOFT X RADIATION
SPECTRA
SYNCHROTRON RADIATION SOURCES
X RADIATION
X-RAY DETECTION
X-RAY FLUORESCENCE ANALYZERS