Simulation results of a real-time in water tritium monitor

被引：7
|
作者：
Azevedo, C. D. R. [1 ]
Baeza, A. [2 ]
Chauveau, E. [3 ,4 ]
Corbacho, J. A. [2 ]
Diaz, J. [5 ]
Domange, J. [3 ,4 ]
Marquet, C. [3 ,4 ]
Martinez-Roig, M. [5 ]
Piquemal, F. [3 ,4 ]
Veloso, J. F. C. A. [1 ]
Yahlali, N. [5 ]
机构：
[1] Univ Aveiro, Dept Phys, I3N, Campus Univ Santiago, P-3810193 Aveiro, Portugal
[2] Univ Extremadura, Lab Radioactividad Ambiental, Serv Apoyo Invest, Caceres, Spain
[3] Univ Bordeaux, Gradignan, France
[4] CNRS, CENBG, Gradignan, France
[5] Univ Valencia, Ctr Mixto CSIC, Inst Fis Corpuscular, Paterna, Spain
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2020年 / 982卷
关键词：
Tritium in water; Real-time monitor; Nuclear power plant; Environmental safety;
D O I：
10.1016/j.nima.2020.164555
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this work we present simulation results for a modular tritium in-water real-time monitor. The system allows for scalability in order to achieve the required sensitivity. The modules are composed by 340 uncladed scintillating fibers immersed in water and 2 photosensors in coincidence for light readout. Light yield and Birks' coefficient uncertainties for low energy beta particles is discussed. A study of the detection efficiency according to the fiber length is presented. Discussion on the system requirements and background mitigation for a device with sensitivity of 100 Bq/L, required to comply with the European directive 2013/51/Euratom, is presented. Due to the low energetic beta emission from tritium a detection efficiency close to 3.3% was calculated for a single 2 mm round fiber.
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收藏
页数：7
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