Open AccessResponse to Neutrons and γ-rays of Two Liquid Scintillators
Author(s) -
Héctor René VegaCarrillo,
Martha Isabel Escalona-Llaguno,
Luis HernándezAdame,
Sergio M. Sarmiento-Rosales,
Claudia Angélica Márquez-Mata,
Guillermo Eduardo Campillo-Rivera,
Vishwanath Pratap Singh,
T. Rivera-Montalvo,
Segundo Agustín Martínez Ovalle
Publication year - 2019
Publication title -
journal of nuclear physics, materials sciences, radiation and applications
Language(s) - English
Resource type - Journals
eISSN - 2321-9289
pISSN - 2321-8649
DOI - 10.15415/jnp.2019.62025
Subject(s) - scintillator , neutron , gamma ray , neutron detection , physics , neutron temperature , nuclear physics , scintillation , liquid scintillation counting , neutron source , radiochemistry , optics , detector , chemistry
UltimaGoldTM AB and OptiphaseTrisafe are two liquid scintillators made by Perkin Elmer and EG & G Company respectively. Both are commercially promoted as scintillation detectors for α and β particles. In this work, the responses to γ-rays and neutrons of UltimaGoldTM AB and OptiphaseTriSafe liquid scintillators, without and with reflector, have been measured aiming to use these scintillators as γ-rays and neutron detectors. Responses to γ-rays and neutrons were measured as pulse shape spectra in a multichannel analyzer. Scintillators were exposed to gamma rays produced by 137Cs, 54Mn, 22Na and 60Co sources. The response to neutrons was obtained with a 241AmBe neutron source that was measured to 25 and 50 cm from the scintillators. The pulse height spectra due to gamma rays are shifted to larger channels as the photon energy increases and these responses are different from the response due to neutrons. Thus, UltimaGoldTM AB and OptiphaseTrisafe can be used to detect γ-rays and neutrons.