2020/02/29 by C. D. R. Azevedo, C.D.R. Azevedo, A. Baeza +12 · 16 citations
Engineering · Physics and Astronomy · #Coincidence #Computer science #Dark Matter and Cosmic Phenomena #Electronic engineering #Engineering #Environmental science #Materials science #Modular design #Nuclear engineering #Nuclear physics #Optoelectronics #Particle Detector Development and Performance #Photodetector #Physics #Radiation Detection and Scintillator Technologies #Sensitivity (control systems) #Tritium #physics.ins-det
paper · pdf · doi:10.1016/j.nima.2020.164555
published in Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 982, 164555 (Elsevier BV)
arxiv created 2020/05/20 · openalex publication_date 2020/08/18 · arxiv updated 2022/02/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 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.