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, Gian Franco;Tyzhnevyi, Vladyslav;Rachevskaia, Irina;Boscardin, Maurizio;Giacomini, Gabriele;Picciotto, Antonino;Piemonte, Claudio;Zorzi, Nicola;
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.File in questo prodotto:
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