A design study of the neutron irradiation facility for boron neutron capture therapy

Journal Article · Thu Dec 01 04:00:00 EST 1983 · Nucl. Technol.; (United States)

OSTI ID:6816441

Oka, Y; An, S; Yanagisawa, I

A design study of the neutron irradiation facility for boron neutron capture therapy was performed using two-dimensional transport calculations. Dose depth distributions in a phantom head were calculated for various neutron energies. The epithermal neutrons having the energies between 10 eV and 0.5 keV are suitable for the therapy. To obtain the epithermal neutron beam, the neutrons leaking downward through the central hole of the annular core TRIGA reactor were moderated through a mixture of heavy water with aluminum whose volume ratio is 15:85. Bismuth and lithium fluoride tile was used to remove gamma rays and thermal neutrons from the beam. Iron, borated polyethylene, and lead were used as the shield surrounding the moderation layer. When the epithermal neutron column is used, the maximum usable depth and irradiation time are 6.9 cm and 7.25 h, respectively, at a 2-MW level.

• Research Organization: The University of Tokyo Nuclear Engineering Research Laboratory The Faculty of Engineering, Tokai-mura, Ibaraki 319-11
• OSTI ID: 6816441
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 55:3; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

550603* -- Medicine-- External Radiation in Therapy-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ABSORPTION
ALKALI METAL COMPOUNDS
ALUMINIUM
BARYONS
BISMUTH COMPOUNDS
BISMUTH FLUORIDES
BODY
BODY AREAS
BORON
DEPTH DOSE DISTRIBUTIONS
DESIGN
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENRICHED URANIUM REACTORS
EPITHERMAL NEUTRONS
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
FERMIONS
FLUORIDES
FLUORINE COMPOUNDS
GAMMA RADIATION
HADRONS
HALIDES
HALOGEN COMPOUNDS
HEAD
HEAVY WATER
HOMOGENEOUS REACTORS
HYDRIDE MODERATED REACTORS
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
IRON
LEAD
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MATERIALS
MEDICINE
METALS
MOCKUP
NEUTRON CAPTURE THERAPY
NEUTRON THERAPY
NEUTRONS
NUCLEAR MEDICINE
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PHANTOMS
POLYETHYLENES
POLYMERS
POLYOLEFINS
RADIATION DOSE DISTRIBUTIONS
RADIATIONS
RADIOLOGY
RADIOTHERAPY
REACTORS
RESEARCH AND TEST REACTORS
SEMIMETALS
SHIELDING MATERIALS
SOLID HOMOGENEOUS REACTORS
SPATIAL DOSE DISTRIBUTIONS
STRUCTURAL MODELS
THERAPY
THERMAL NEUTRONS
TIME DEPENDENCE
TRANSITION ELEMENTS
TRIGA TYPE REACTORS
TWO-DIMENSIONAL CALCULATIONS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS