JOPSS - Search Results

Journal Articles

Experiment and analyses for 14 MeV neutron streaming through a dogleg duct

Yamauchi, Michinori*; Ochiai, Kentaro; Morimoto, Yuichi*; Wada, Masayuki*; Sato, Satoshi; Nishitani, Takeo

Radiation Protection Dosimetry, 116(1-4), p.542 - 546, 2005/12

https://doi.org/10.1093/rpd/nci236

Times Cited Count：3 Percentile：24.15(Environmental Sciences)

no abstracts in English

JAEA Reports

Shielding design for target trolley for a spallation neutron source in the J-PARC project

Tamura, Masaya; Maekawa, Fujio; Harada, Masahide; Haga, Katsuhiro; Konno, Chikara

JAERI-Tech 2005-020, 58 Pages, 2005/03

JAERI-Tech-2005-020.pdf:18.82MB

no abstracts in English

Journal Articles

Radiation safety design study of J-PARC (Japan Proton Accelerator Research Complex)

Nakashima, Hiroshi; Safety Group of J-PARC

Monte Karuro Keisanho Kodoka No Genjo; Dai-3-Kai Monte Karuro Shimyureshon Kenkyukai Hobunshu, p.75 - 83, 2004/12

Design policy for radiation safety issues, design criteria, calculation conditions for shielding design, method for design and safety estimation and the present status of shielding design are reported in Japan Proton Accelerator Research Complex.

JAEA Reports

3-dimensional shielding design for a spallation neutron source facility in the high-intensity proton accelerator project

Tamura, Masaya; Maekawa, Fujio

JAERI-Tech 2003-010, 54 Pages, 2003/03

JAERI-Tech-2003-010.pdf:7.97MB

Evaluation of shielding performance for a spallation neutron source facility in the J-PARC Project is important from a viewpoint of radiation safety and optimization of arrangement of components. This report describes evaluated results for the shielding performance with modeling three-dimensionally whole structural components including gaps between them in detail. A Monte Carlo calculation method with MCNPX2.2.6 code and LA-150 library was adopted. Streaming and void effects, optimization of shield for cost reduction and optimization of arrangement of structures such as shutters were investigated. Horizontal required shield thicknesses were ranged from about 6.5m to 7.5m as a function of neutron beam line angles. A shutter mechanism for a horizontal neutron reflectometer that was directed downward was devised, and it was shown that the shielding performance of the shutter was acceptable. An optimal biological shield configuration was finally determined according to the calculated results.

JAEA Reports

Development of Monte Carlo decay -ray transport calculation system

Sato, Satoshi; Kawasaki, Nobuo*; Kume, Etsuo

JAERI-Data/Code 2001-017, 99 Pages, 2001/06

JAERI-Data-Code-2001-017.pdf:3.19MB

no abstracts in English

Journal Articles

Shielding design for steam generator of advanced integral marine reactor MRX

Odano, Naoteru; Yamaji, Akio*; Ishida, Toshihisa

Journal of Nuclear Science and Technology, 37(Suppl.1), p.78 - 82, 2000/03

https://doi.org/10.1080/00223131.2000.10874850

no abstracts in English

JAEA Reports

Preparation of a basic data base for shielding design (II)

Takemura, Morio*

PNC TJ9055 97-001, 112 Pages, 1997/03

PNC-TJ9055-97-001.pdf:2.63MB

With use of a standard groupwise shielding design library JSSTDL produced from the latest evaluated nuclear data library JENDL-3.2, experimental analyses for the Axial Shield Experiment (homogeneous and central blockage type shield configurations with B $_{4}$ C or stainless steel shield material) were performed. The results were compared with those obtained by the same analysis method and input data using JSDJ2 library that had been applied consistently to the JASPER experiment analyses. In general, the results with JSSTDL analyses are higher than those by JSDJ2 as were found in analyses in last year for the Radial Shield Attenuation Experiment and the Special Materials Experiment. Consideration was made on the discrepancies between JSSTDL and JSDJ2 analysis results of the Axial Shield Experiment and also those of the sodium configulation in the Radial Shield Attenuation Experiment. The former was done by exchange of macro cross section of each region, and the latter forcused on sodium cross section was done with use of cross section sensitivity analysis method. Compilation of the input data necessary for future reanalyses of important configurations in JASPER experiments, that were selected in previous study in last year, were continued and new data were added into the computer disk holding previous ones.