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/μm 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 gamma source and a cylindrical TEPC equipped with a precision internal 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 137Cesium sources, with an overall uncertainty of about 5%.
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18 July 2013
MULTIDISCIPLINARY APPLICATIONS OF NUCLEAR PHYSICS WITH ION BEAMS (ION BEAMS '12)
6–8 June 2012
Legnaro-Padova, Italy
Research Article|
July 18 2013
Lineal energy calibration of mini tissue-equivalent gas-proportional counters (TEPC)
V. Conte;
V. Conte
LNL-INFN, viale dell'Università 2, I-35020 Legnaro,
Italy
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D. Moro;
D. Moro
LNL-INFN, viale dell'Università 2, I-35020 Legnaro,
Italy
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P. Colautti
P. Colautti
LNL-INFN, viale dell'Università 2, I-35020 Legnaro,
Italy
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AIP Conf. Proc. 1530, 171–178 (2013)
Citation
V. Conte, D. Moro, B. Grosswendt, P. Colautti; Lineal energy calibration of mini tissue-equivalent gas-proportional counters (TEPC). AIP Conf. Proc. 18 July 2013; 1530 (1): 171–178. https://doi.org/10.1063/1.4812920
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