Measurement of $^{222}$Rn at the Bq $m^{-3}$ level with the AlphaRad chip

S. Higueret (1) , D. Husson (1) , M. Trocmé (1) , A. Nourreddine (1) , T.D. Lê (1) , N. Michielsen (2)

1 DRS-IPHC - Département Recherches Subatomiques
2 IRSN/DSU/SERAC/LPMA - Laboratoire de Physique et de Métrologie des Aérosols

We describe a fully standalone compact electronic monitor for atmospheric $^{222}$Rn, based on a new CMOS system-on-chip. The electronic board consists of three AlphaRad CMOS chips running in parallel, and it includes a numeric block for data treatment based on a Xilinx programmable gate array. In addition to classical tests (passive detection in a calibrated radon chamber), we present the first results with active collection of radon progeny present as aerosols.

Mots clés: CMOS; Solid state detectors; 222Rn; Radon monitoring; AlphaRad; Dosimetry; System-on-chip

Domaines: Instrumentations et Détecteurs [physics.ins-det]

S. Higueret, D. Husson, M. Trocmé, A. Nourreddine, T.D. Lê, et al.. Measurement of $^{222}$Rn at the Bq $m^{-3}$ level with the AlphaRad chip. 15th Solid State Dosimetry (SSD15), Jul 2007, Delft, Netherlands. pp.1059-1062, ⟨10.1016/j.radmeas.2007.10.031⟩. ⟨in2p3-00202988⟩