Performance of a Radon Sensor Based on a BJT Detector on High-Resistivity Silicon

Bosi, A.; Bidinelli, L.; Saguatti, D.; Dalla Betta, Gian Franco; Tyzhnevyi, Vladyslav; Rovati, L.; Verzellesi, G.; Batignani, G.; Bettarini, S.; Forti, F.; D'Errico, F.; Del Gratta, A.; Bosisio, L.; Rachevskaia, Irina; Boscardin, Maurizio; Giacomini, Gabriele; Calamosca, M.; Penzo, S.; Cardellini, F.

doi:10.1109/NSSMIC.2012.6551105

An autonomous Radon sensor with wireless connectivity has been developed, using a BJT detector on high-resistivity silicon as alpha-particle detector. Charged Radon daughters are collected on the detector surface electrostatically. Thanks to the BJT internal amplification, real-time alpha particle detection is made possible using a very simple readout electronics which records alpha-particle arrival time and charge. Functional tests at known Radon concentrations demonstrated a sensitivity up to 4.9 cph/(100 Bq/m^3), which translates into the capability of detecting a Radon concentration of 200±20 Bq/m^3 and 500±50 Bq/m^3 after 10 and 4 h, respectively. The count rate at nominally-zero Radon concentration was 0.05 cph.

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Titolo:	Performance of a Radon Sensor Based on a BJT Detector on High-Resistivity Silicon
Autori:	A. Bosi L. Bidinelli D. Saguatti Dalla Betta, Gian Franco Tyzhnevyi, Vladyslav L. Rovati G. Verzellesi G. Batignani S. Bettarini F. Forti F. D'Errico A. Del Gratta L. Bosisio Rachevskaia, Irina Boscardin, Maurizio Giacomini, Gabriele M. Calamosca S. Penzo F. Cardellini mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2012
Abstract:	An autonomous Radon sensor with wireless connectivity has been developed, using a BJT detector on high-resistivity silicon as alpha-particle detector. Charged Radon daughters are collected on the detector surface electrostatically. Thanks to the BJT internal amplification, real-time alpha particle detection is made possible using a very simple readout electronics which records alpha-particle arrival time and charge. Functional tests at known Radon concentrations demonstrated a sensitivity up to 4.9 cph/(100 Bq/m^3), which translates into the capability of detecting a Radon concentration of 200±20 Bq/m^3 and 500±50 Bq/m^3 after 10 and 4 h, respectively. The count rate at nominally-zero Radon concentration was 0.05 cph.
Handle:	http://hdl.handle.net/11582/135801
ISBN:	9781467320283 9781467320290 9781467320306
Appare nelle tipologie:	4.1 Contributo in Atti di convegno

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