Design Studies of an Epithermal Neutron Beam for Neutron Caputure Therapy at the Musashi Reactor
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概要
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Studies were carried out to design an epithermal neutron beam for neutron capture therapy at the Musashi reactor, a TRIGA-II of 100kW. The idea in this design is to use spent fuel elements as a converter assembly to convert thermal neutrons from the core to fission neutrons which would then be moderated to epithermal neutrons. In the design, 43 elements were placed outside of the graphite reflector but inside the tank. These elements could be cooled by water in the reactor tank and also be easily removed for inspection. Monte Carlo computations indi- cated that by using a 63cm-thick Al<SUB>2</SUB>O<SUB>3</SUB> moderator, an epithermal neutron beam with an intensity of 0.34×10<SUP>9</SUP>n•cm<SUP>-2</SUP>•s<SUP>-1</SUP> and fast neutron and γ-doses per epithermal neutron of 4.3×10<SUP>-11</SUP> cGy•cm<SUP>2</SUP>•n<SUP>-1</SUP> and 0.3×10<SUP>-11</SUP>cGy•cm<SUP>2</SUP>•n<SUP>-1</SUP>, respectively, could be produced. The multiplication factor of the 43 spent fuel elements was <0.95 and negligible reactivity coupling to the core by the spent fuel was calculated. Such an epithermal neutron beam, if built into the Musashi reactor, would significantly increase the chance of success of Boron Neutron Capture Therapy (BNCT) in Japan.
- 社団法人 日本原子力学会の論文
- 1995-02-25
著者
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MATSUMOTO Tetsuo
Atomic Energy Research Laboratory, Musashi Institute of Technology
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Matsumoto T
Musashi Inst. Technol.
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LIU Hungyuan
Medical Department, Brookhaven National Laboratory
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BRUGGER Robert
Medical Department, Brookhaven National Laboratory
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Liu Hungyuan
Medical Department Brookhaven National Laboratory
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Brugger Robert
Medical Department Brookhaven National Laboratory
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Matsumoto Tetsuo
Atomic Energy Research Laboratory Musashi Institute Of Technology
関連論文
- Application of Fission Chamber to Uranium Microanalysis
- Design Studies of an Epithermal Neutron Beam for Neutron Caputure Therapy at the Musashi Reactor
- Benchmark Analysis of TRIGA Mark II Reactivity Experiment Using a Continuous Energy Monte Carlo Code MCNP
- Design of Neutron Beams for Boron Neutron Capture Therapy for TRIGA Reactor
- Benchmark Analysis of Criticality Experiments in the TRIGA Mark II Using a Continuous Energy Monte Carlo Code MCNP
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