Characterization of an EJ-200 plastic scintillator array for experiments with 14-MeV tagged neutrons using the carbon and polyethylene samples

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2025-03, Vol.1072, p.170143, Article 170143
• Main Authors: Prusachenko, P.S., Grozdanov, D.N., Fedorov, N.A., Kopatch, Yu.N., Skoy, V.R., Ruskov, I.N., Tretyakova, T.Yu, Kharlamov, P.I., Andreev, А.V., Pampushik, G.V., Hramco, C., Filonchik, P.G., Dabylova, S.
• Format: Article
• Language: English
• Subjects: Detection efficiency; EJ-200 scintillator; Light output; Tagged neutron method; Time-of-flight spectrometry
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2024.170143

The energy dependence of the light output for secondary charged particles (protons and α-particles) was measured in the neutron energy range of 1.5–14.0 MeV for an array of scintillation detectors based on a EJ-200 scintillator. The scattering of a tagged neutron beam with an energy of 14.1 MeV on graphite and polyethylene samples was used to obtain neutrons with known energies at different angles. Based on the obtained data, both the response function and the intrinsic efficiency of the detectors used were simulated in GEANT4. To verify the simulated efficiency a method based on the measurement of elastically scattered neutrons from the 1H(n,n0)1H reaction was implemented.