title: Development of a light-weight portable neutron survey meter.
abstract: A light-weight portable neutron survey meter was developed using a mixed organic gas counter for dose management at nuclear power plants and accelerator facilities. This survey meter, NSN31041, is ~2 kg in weight and W160×H250×L300 mm(3) in size, which is capable of measuring neutron ambient dose equivalent rate from thermal to 15 MeV neutrons. The neutron energy response of the survey meter is evaluated using continuous energy neutron sources of (252)Cf, (241)Am-Be, thermal neutrons generated from a graphite pile loading a (252)Cf source, concrete-moderated neutrons of (241)Am-Be source and D(2)O-moderated neutrons of (252)Cf source. The measured response data show very good agreement with neutron ambient dose equivalent within a 50 % deviation.
authors.affiliation: Fuji Electric Co, Ltd, 1 Fuji-machi, Hino-city 191-8502, Japan. nunomiya-tomoya@fujielectric.co.jp
authors.forename: Tomoya
authors.initials: T
authors.lastname: Nunomiya
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakamura
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Koyama
authors.forename: Daisuke
authors.initials: D
authors.lastname: Inui
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ishikura
mesh_terms: D004867:Equipment Design; D006801:Humans; D008904:Miniaturization; D009502:Neutrons; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011835:Radiation Protection / Q000295:instrumentation*