SiLiF Neutron Counters to Monitor Nuclear Materials in the MICADO Project

Sensors

Quentin Ducasse¹  Sergio Lo Meo²  Alfio Pappalardo³  Paolo Finocchiaro³  Salvatore Russo³  Martina Giuffrida³  Giuseppe Passaro³  Fabio Longhitano³  Antonio Massara³  Carmelo Marchetta³  Luigi Cosentino³ 

[1] CEA, DES, IRESNE, Nuclear Measurement Laboratory, Cadarache, F-13108 Saint-Paul-lez-Durance, France;ENEA Centro Ricerche, 40129 Bologna, Italy;INFN Laboratori Nazionali del Sud, 95123 Catania, Italy;

关键词: neutron detectors;    radwaste management;    radwaste monitoring;   

DOI  :  10.3390/s21082630

来源: DOAJ

【 摘 要 】

In the framework of the MICADO (Measurement and Instrumentation for Cleaning And Decommissioning Operations) European Union (EU) project, aimed at the full digitization of low- and intermediate-level radioactive waste management, a set of 32 solid state thermal neutron detectors named SiLiF has been built and characterized. MICADO encompasses a complete active and passive characterization of the radwaste drums with neutrons and gamma rays, followed by a longer-term monitoring phase. The SiLiF detectors are suitable for the monitoring of nuclear materials and can be used around radioactive waste drums possibly containing small quantities of actinides, as well as around spent fuel casks in interim storage or during transportation. Suitable polyethylene moderators can be exploited to better shape the detector response to the expected neutron spectrum, according to Monte Carlo simulations that were performed. These detectors were extensively tested with an AmBe neutron source, and the results show a quite uniform and reproducible behavior.

【 授权许可】

Unknown