Neutron flux measurements with a Li2B4O7 crystal |
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| Affiliation: | 1. Crystal Technology Laboratory, TPPED, BARC, Trombay, Mumbai 400085, India;2. Electronics Division, BARC, Trombay, Mumbai 400085, India;1. Instituto Tecnológico e Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, E.N. 10, 2686-953 Sacavém, Portugal;2. CFNUL, Av. Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal;3. LNEG, Estrada Estrada do Paço do Lumiar 22, 1649-038 Lisboa, Portugal;4. Consorzio CREO, SS 17 Località Boschetto, 67100 L’Aquila, Italy;1. International Atomic Energy Agency (IAEA), IAEA Laborarories, A-2444 Seibersdorf, Austria;2. Ru?er Bo?kovi? Institute, P.O. Box 180, 10002 Zagreb, Croatia;3. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institut Technologie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany;4. Physikalisch-Technische Bundesanstalt, Abbestr. 2-12, 10587 Berlin, Germany;5. Technische Universität Berlin, Institut für Optik und Atomare Physik, 10623 Berlin, Germany;6. Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, E. N. 10, Apartado 21, 2686-953 Sacavém, Portugal;1. Laboratório Nacional de Energia e Geologia, LEN/UES, Estrada do Paço do Lumiar, 22, 1649-038 Lisboa, Portugal;2. IPFN, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2686-953 Sacavém, Portugal;3. C2TN, Campus Tecnológico e Nuclear, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2686-953 Sacavém, Portugal;4. Laboratório Nacional de Energia e Geologia, LGM/UCTM, Rua da Amieira, Apartado 1089, 4466-901 S. Mamede de Infesta, Portugal;1. Department of physics, B.S. Patel ACS College, Pimpalgaon, Kale 443403, India;2. Prof. Ram Meghe Institute of Technology and Research, Badnera 444701, India;3. Department of physics, SGB Amravati University, Amravati 444602, India |
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| Abstract: | The effect of neutron irradiation on a lithium tetraborate (Li2B4O7, LBO) single crystal has been investigated. The crystals of high optical quality are found to be quite stable under high neutron fluence. This study shows that LBO crystals can be used as a proportional counter for neutron fluxes of the order 109 cm?2 s?1 and higher. The detectors fabricated were found to have a sensitivity of ～3×10?18 A (nv)?1. |
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