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Featured researches published by Shuichi Tsuda.


Journal of Nuclear Science and Technology | 2005

Development of three kinds of tissue substitutes for a physical phantom in neutron dosimetry

Shuichi Tsuda; Akira Endo; Yasuhiro Yamaguchi

Three kinds of tissue substitutes were synthesized in order to develop a physical phantom for neutron dosimetry. The optimal elemental compositions and densities were determined using a Monte Carlo simulation method, based on absorbed dose distributions of neutrons of a few MeV in various materials. The characteristics of the synthesized tissue substitutes were verified by absorbed dose measurements using monoenergetic neutron sources and a 252Cf neutron source. It was found that the developed tissue substitutes, NAN-, HAI- and HONE-JAERI, have tissue equivalence to actual tissues within an accuracy of 10% for neutrons in most of the common fast neutron fields.


Journal of Nuclear Science and Technology | 2004

Energy Dependence of Absorbed Dose Distributions In a Soft Tissue Substitute for Neutron Dosimetry

Shuichi Tsuda; Akira Endo; Yasuhiro Yamaguchi

In order to develop a physical phantom for neutron dosimetry, a soft-tissue substitute improved in hydrogen and oxygen contents was synthesized. Absorbed dose distributions in the synthesized tissue substitute were measured using monoenergetic neutrons (0.556 and 5 MeV) and quasi-monoenergetic neutrons (40 and 65 MeV). It was found that the tissue substitute has soft-tissue characteristics in terms of the absorbed dose distribution, in the energy range from several MeV up to 100 MeV.


Radiation Protection Dosimetry | 2000

Pressure Dependence of Neutron Detection Sensitivity in a Superheated Drop Detector

Shuichi Tsuda; Teruko Sawamura; Akira Homma; M. Narita


Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2003

Effect of lead converter on superheated drop detector response to high-energy neutrons

Teruko Sawamura; Junichi H. Kaneko; Masashi Abe; Masaya Tamura; Ikuo Murai; Akira Homma; Fumiyuki Fujita; Shuichi Tsuda


Radiation Protection Dosimetry | 2001

External Doses in the Environment from the Tokai-mura Criticality Accident

Akira Endo; Y. Yamaguchi; Y. Sakamoto; Michio Yoshizawa; Shuichi Tsuda


Japanese Journal of Health Physics | 2012

Calculation and Verification of the Spectrum -Dose Conversion Operator of Various CsI(Tl) Scintillation Counters for Gamma-ray

Shuichi Tsuda; Masahiro Tsutsumi


Radiation Protection Dosimetry | 2004

Superheated emulsions as high-energy neutron dosemeters

Mala Das; Teruko Sawamura; Masashi Abe; Junichi H. Kaneko; Akira Homma; Fumiyuki Fujita; Shuichi Tsuda; T. Nishitani


Radiation Protection Dosimetry | 2001

Fluence to Effective Dose Conversion Coefficients for Electrons from 1 MeV to 100 GeV

Shuichi Tsuda; Akira Endo; Y. Yamaguchi; O. Sato


Journal of Nuclear Science and Technology | 2003

Synthesis and Characterization of a Soft-tissue Substitute for Neutron Dosimetry

Shuichi Tsuda; Akira Endo; Yasuhiro Yamaguchi


Proceedings of International Symposium on Radiation Detectors and Their Uses (ISRD2016) | 2016

Review of the Microdosimetric Studies for High-Energy Charged Particle Beams Using a Tissue-Equivalent Proportional Counter

Shuichi Tsuda; Tatsuhiko Sato; Tatsuhiko Ogawa; Shinichi Sasaki

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Akira Endo

Japan Atomic Energy Agency

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Yasuhiro Yamaguchi

Japan Atomic Energy Research Institute

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Yukio Sakamoto

Japan Atomic Energy Agency

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Nobuaki Yoshizawa

Mitsubishi Research Institute

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