Plastic scintillator for pulse shape neutrons and gamma quanta discrimination |
| |
| Affiliation: | 1. School of Physical Science and Technology, Sichuan University, Chengdu 610064, Sichuan, China;2. Key Laboratory of High Energy Density Physics and Technology (Ministry of Education), Sichuan University, Chengdu 610064, China;3. Department of Engineering Physics, Tsinghua University, Beijing 100084, China;1. College of Physical Science and Technology, Key Laboratory of Radiation Physics and Technology, Ministry of Education, Sichuan University, Chengdu 610064, China;2. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, P.O. Box 919, Mianyang, Sichuan 621900, China;1. Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;2. ENEA C. R. Frascati, Dipartimento FSN, Via E. Fermi, 45-Frascati, 00044 Rome, Italy;1. School of Physical Science and Technology, Sichuan University, Chengdu 610041, Sichuan, China;2. Key Laboratory of High Energy Density Physics and Technology (Ministry of Education ), Sichuan University, Chengdu 610064, China;3. Department of Engineering Physics, Tsinghua University, Beijing 100084, China;1. Department of Energy Engineering and Physics, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran;2. School of Physics, Damghan University, P.O. Box 36716-41167, Damghan, Iran;3. Department of Physics, Faculty of Sciences, Ferdowsi University of Mashhad, P.O. Box 91775-1436, Mashhad, Iran;4. Nuclear Science and Technology Research Center, AEOI, P.O. Box 14155-1339, Tehran, Iran |
| |
| Abstract: | This study describes a new plastic scintillator for pulse shape n-γ discrimination. The scintillator contains two activation centers with different life spans. The first activator collects the singlet excitation energy of a polymer base, and the second activator utilizes triplet excitation states. We utilized 1,4-dimethyl-9,10-diphenylanthracene (DMDPA) and tris(dibenzoylmethide) (1,10-phenanthroline)Europium(III) (Eu[DBM]3Phen) as activators. The figure of merit for this scintillator is 1.37, which is sufficient for reliable n-γ discrimination. |
| |
| Keywords: | Plastic scintillators Neutron registration Pulse shape discrimination Triplet states Luminescent additives Polystyrene Eu-complex |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
