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Passive neutron area monitor with pairs of TLDs as neutron detector
Affiliation:1. Unidad Académica de Estudios Nucleares de la Universidad Autónoma de Zacatecas, C. Ciprés 10, Fracc, La Peñuela, 98068 Zacatecas, Zac., Mexico;2. Departamento de Ingeniería Nuclear de la Universidad Politecnica de Madrid, C. Jose Gutierrez Abascal 2, Madrid E-28006, Spain;1. New Brunswick Laboratory, U.S. Department of Energy, 9800 South Cass Avenue, Building 350, Argonne, IL 60439, United States;2. Oak Ridge National Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831, United States;1. Universität der Bundeswehr München, Institut für Angewandte Physik und Messtechnik LRT2, Department für Luft- und Raumfahrttechnik, 85577 Neubiberg, Germany;2. Beschleunigerlabor MLL, 85478 Garching, Germany;1. Cyclotron Department, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussel, Belgium;2. Institute of Nuclear Research, Hungarian Academy of Sciences, 4026 Debrecen, Hungary;3. Department of Physics, Government College University Lahore, 54000 Lahore, Pakistan;1. Engineering Physics Research Center, National University of Defense Technology, Changsha 410073, China;2. University of Science and Technology of China, Hefei, Anhui 230027, China;3. China Institute of Atomic Energy, Beijing 102413, China;4. Radiation Environmental Protection Consultation Center of JiangSu Province, NanJing, JiangSu 210000, China;5. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Abstract:A passive neutron area monitor has been designed using Monte Carlo methods; the monitor is a polyethylene cylinder with pairs of thermoluminescent dosimeters (TLD600 and TLD700) as thermal neutron detector. The monitor was calibrated with a bare and a thermalzed 241AmBe neutron sources and its performance was evaluated measuring the ambient dose equivalent due to photoneutrons produced by a 15 MV linear accelerator for radiotherapy and the neutrons in the output of a TRIGA Mark III radial beam port.
Keywords:Neutron  Ambient dose equivalent  Neutron area monitor  Passive  TLD600  TLD700
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