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Title: Lineal energy calibration of mini tissue-equivalent gas-proportional counters (TEPC)

Mini TEPCs are cylindrical gas proportional counters of 1 mm or less of sensitive volume diameter. The lineal energy calibration of these tiny counters can be performed with an external gamma-ray source. However, to do that, first a method to get a simple and precise spectral mark has to be found and then the keV/{mu}m value of this mark. A precise method (less than 1% of uncertainty) to identify this markis described here, and the lineal energy value of this mark has been measured for different simulated site sizes by using a {sup 137}Cs gamma source and a cylindrical TEPC equipped with a precision internal {sup 244}Cm alpha-particle source, and filled with propane-based tissue-equivalent gas mixture. Mini TEPCs can be calibrated in terms of lineal energy, by exposing them to {sup 137}Cesium sources, with an overall uncertainty of about 5%.
Authors:
; ;  [1] ;  [2]
  1. LNL-INFN, viale dell'Universita 2, I-35020 Legnaro (Italy)
  2. guest at LNL-INFN (Italy)
Publication Date:
OSTI Identifier:
22121662
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1530; Journal Issue: 1; Conference: ION BEAMS '12: International conference on multidisciplinary applications of nuclear physics with ion beams, Legnaro, Padova (Italy), 6-8 Jun 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 61 RADIATION PROTECTION AND DOSIMETRY; ACCURACY; ALPHA SOURCES; ANIMAL TISSUES; CALIBRATION; CESIUM 137; CURIUM 244; DOSIMETRY; GAMMA SOURCES; PROPANE; PROPORTIONAL COUNTERS