TY  - JOUR
AU  - Azevedo, C. D. R.
AU  - Baeza, A.
AU  - Chauveau, E.
AU  - Corbacho, J. A.
AU  - Diaz, J.
AU  - Domange, J.
AU  - Marquet, C.
AU  - Martinez-Roig, M.
AU  - Piquemal, F.
AU  - Veloso, J. F. C. A.
AU  - Yahlali, N.
PY  - 2020
DA  - 2020//
TI  - Simulation results of a real-time in water tritium monitor
T2  - Nucl. Instrum. Methods Phys. Res. A
JO  - Nuclear Instruments & Methods in Physics Research A
SP  - 164555
EP  - 7pp
VL  - 982
PB  - Elsevier
KW  - Tritium in water
KW  - Real-time monitor
KW  - Nuclear power plant
KW  - Environmental safety
AB  - 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.
SN  - 0168-9002
UR  - https://arxiv.org/abs/2002.06050
UR  - https://doi.org/10.1016/j.nima.2020.164555
DO  - 10.1016/j.nima.2020.164555
LA  - English
N1  - WOS:000581805300016
ID  - Azevedo_etal2020
ER  -