A battery-powered, wireless Radon sensor has been designed and realized using a BJT, fabricated on a high-resistivity-silicon substrate, as a radiation detector. Radon daughters are electrostatically collected on the detector surface. Thanks to the BJT internal amplification, real-time alpha particle detection is possible using simple readout electronics, which records the particle arrival time and charge. Functional tests at known Radon concentrations, demonstrated a sensitivity up to 4.9 cph/(100 Bq/m^3) and a count rate of 0.05 cph at nominally-zero Radon concentration.
Functional test of a Radon sensor based on a high-resistivity-silicon BJT detector / Dalla Betta, G.F., Tyzhnevyi, V., Bosi, A., Bonaiuti, M., Angelini, C., Batignani, G., Bettarini, S., Bosi, F., Forti, F., Giorgi, M.A., Morsani, F., Paoloni, E., Rizzo, G., Walsh, J., Lusiani, A., Ciolini, R., Curzio, G., D'Errico, F., Del Gratta, A., Bidinelli, L., et al.. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - STAMPA. - 718:(2013), pp. 302-304. [10.1016/j.nima.2012.10.097]
Functional test of a Radon sensor based on a high-resistivity-silicon BJT detector
BOSISIO, LUCIANO;
2013-01-01
Abstract
A battery-powered, wireless Radon sensor has been designed and realized using a BJT, fabricated on a high-resistivity-silicon substrate, as a radiation detector. Radon daughters are electrostatically collected on the detector surface. Thanks to the BJT internal amplification, real-time alpha particle detection is possible using simple readout electronics, which records the particle arrival time and charge. Functional tests at known Radon concentrations, demonstrated a sensitivity up to 4.9 cph/(100 Bq/m^3) and a count rate of 0.05 cph at nominally-zero Radon concentration.Pubblicazioni consigliate
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