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. (C) 2012 Elsevier B.V. All rights reserved.
Functional test of a Radon sensor based on a high-resistivity-silicon BJT detector
ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;BOSI, FILIPPO;FORTI, FRANCESCO;MORSANI, FABIO;PAOLONI, EUGENIO;RIZZO, GIULIANA;CIOLINI, RICCARDO;D'ERRICO, FRANCESCO;
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. (C) 2012 Elsevier B.V. All rights reserved.File in questo prodotto:
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