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Journal Articles

Development of a hand-held fast neutron survey meter

Yoshida, Tadayoshi; Tsujimura, Norio; Yamano, Toshiya*

Radiation Protection Dosimetry, 146(1-3), p.72 - 75, 2011/07

 Times Cited Count:2 Percentile:19.59(Environmental Sciences)

A neutron survey meter with a ZnS(Ag) scintillator to measure recoil protons was built. The detection probe weighs approximately 2 kg, therefore providing us with true portability. Performance tests exhibited satisfactory neutron dosimetry characteristics in unmoderated or lightly moderated fission neutron fields and in particular work environments at a MOX fuel facility. This new survey meter will augment a routine of neutron monitoring that is inconveniently being carried out by moderator-based neutron survey meters.

Journal Articles

Development of a hand-held fast neutron survey meter

Yoshida, Tadayoshi; Tsujimura, Norio; Yamano, Toshiya*

Proceedings of 3rd Asian and Oceanic Congress on Radiation Protection (AOCRP-3) (CD-ROM), 3 Pages, 2010/05

A neutron survey meter with a ZnS(Ag) scintillator to measure recoil protons was built. The detection probe weighs approx. 2 kg, therefore providing us with true portability. Performance tests exhibited satisfactory neutron dosimetry characteristics at unmoderated or lightly moderated fission neutron fields and in particular work environments at a MOX fuel facility. This new survey meter will augment a routine neutron monitoring inconveniently being carried out by moderator-based neutron survey meters.

Journal Articles

Development of Portable Neutron Ambient Dose Equivalent Rate Meter Using Two Li-glass Scintillators Embedded in Stacked Polyethylene Cylinders

Tsujimura, Norio; Yoshida, T.; Yamano, Toshiya*; Matsubara, S.*

Saikuru Kiko Giho, (26), p.87 - 89, 2005/00

The concept of air transport of A Type package containing nuclear fuel materials according to the nuclear disaster countermeasures law, and the experience of a transportation of plutonium solution from France are shown.

Journal Articles

Evaluation of energy responses for neutron dose-equivalent meters made in Japan

Saegusa, Jun; Yoshizawa, Michio; Tanimura, Yoshihiko; Yoshida, Makoto; Yamano, Toshiya*; Nakaoka, Hiroshi*

Nuclear Instruments and Methods in Physics Research A, 516(1), p.193 - 202, 2004/01

 Times Cited Count:15 Percentile:67.55(Instruments & Instrumentation)

Energy responses of three types of Japanese rem counters were evaluated by Monte Carlo simulations and measurements. The energy responses for thermal neutrons, monoenergetic neutrons with energies up to 15.2 MeV were evaluated as well as for neutrons from such radionuclide sources as $$^{252}$$Cf. The calculated results were corroborated with the measured ones. Angular dependence of the response and dose equivalent response was also evaluated. As a result, the reliable energy responses were obtained by careful simulations of the proportional counter, moderator and absorber of the rem counters. Furthermore, discussions were made about the relationship between pressure of counting gas and sensitivity of the rem counter. By using the obtained responses, relations of predicted readings of the rem counters and true dose equivalent were studied for various workplace spectra.

Oral presentation

Development of a new portable neutron dose equivalent rate meter based on the recoil proton measurements

Yoshida, Tadayoshi; Tsujimura, Norio; Yamano, Toshiya*

no journal, , 

no abstracts in English

Oral presentation

Characteristic for high count rate of commercial $$alpha$$/$$beta$$ survey meter

Iijima, Nobuo; Sanada, Yukihisa; Sakuyama, Mitsuhiro*; Yamano, Toshiya*; Momose, Takumaro

no journal, , 

no abstracts in English

Oral presentation

Development of a hand-held fast neutron survey meter

Yoshida, Tadayoshi; Tsujimura, Norio; Yamano, Toshiya*

no journal, , 

no abstracts in English

7 (Records 1-7 displayed on this page)
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