An advanced blind-tube monitoring instrument to improve the characterization of subsurface radioactive plumes

EPJ Web of Conferences

Graham James¹  Elísio Soraia²  Joyce Malcolm J.²  Greenhalgh Barrie³ 

[1] Central Laboratory, National Nuclear Laboratory Ltd.;Department of Engineering, Lancaster University;Radiometric Systems Group, Sellafield Ltd.;

关键词: blind-tube logging;    cebr3 scintillator;    gamma-ray spectroscopy;    decommissioning;   

DOI  :  10.1051/epjconf/202125308005

来源: DOAJ

【 摘 要 】

This research presents a design of a resilient blind-tube radiometric logging probe, which satisfies key, operational site constraints, for direct in-situ characterization of subsurface radioactivity, particularly caesium-137 and strontium-90. The probe comprises a commercially-available Ø10 mm × 9.5 mm CeBr3 scintillator detector attached to a compact digitizer unit, in a resistant and waterproof housing. The probe is designed to be lowered down into metallic Ø 75 mm blind-tubes by means of a winch system.

【 授权许可】

Unknown