Citation

Thomas V, Delaune O, Cagniant A, Le Petit G, Fontaine JP. Appl. Radiat. Isot. 2019; 152: 91-100.

Affiliation

CEA, DAM, DIF, F-91297, Arpajon, France.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.apradiso.2019.06.032

PMID

31280113

Abstract

An ultra-compact and unshielded spectrometer for analysis of atmospheric radioxenons has been developed. This system works at ambient temperature and has a 58 cm³ inner active volume. Atmospheric radioxenons activities are determined with electron/photon coincidence technique using both NaI(Tl) detector and large pixellized Si-PIN detector. The performances of the detection system without shielding in terms of Minimal Detectable Activities are below 65 mBq for a 12 h acquisition, for all radioxenons of interest. An enhanced version of the prototype presented here is already under development: the Mobile Analyzer for Radioactive Gases OuTflows (MARGOT) system.

Copyright © 2019 Elsevier Ltd. All rights reserved.

Language: en

Keywords

Coincidence measurement technique; Pixellized silicon wafer; Radioxenon