Functional test of a Radon sensor based on a high-resistivity-silicon BJT detector.

Authors :: 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.
Source :: Nuclear Instruments & Methods in Physics Research Section A. Aug2013, Vol. 718, p302-304. 3p.
Publication Year :: 2013
Abstract: 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 α 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 4.9cph/(100Bq/m3) and a count rate of 0.05cph at nominally-zero Radon concentration. [Copyright &y& Elsevier]

Subjects :: *RADON
*GAS detectors
*SILICON detectors
*ELECTRIC batteries
*WIRELESS sensor networks
*MICROFABRICATION
*SUBSTRATES (Materials science)
*PARTICLES (Nuclear physics)

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