D-T neutron streaming experiment simulating narrow gaps in ITER equatorial port

Autor:	Satoshi Sato, Kentaro Ochiai, Masayuki Wada, Yuichi Abe, Chikara Konno, Hiromasa Iida, C. Kutsukake, Satoru Tanaka, Kosuke Takakura
Rok vydání:	2008
Předmět:	Physics Neutron transport D t neutron biology Fission Accurate estimation Scattering Mechanical Engineering biology.organism_classification Nuclear physics Attila Nuclear Energy and Engineering General Materials Science Neutron Slow neutron Civil and Structural Engineering
Zdroj:	Fusion Engineering and Design. 83:1725-1728
ISSN:	0920-3796
DOI:	10.1016/j.fusengdes.2008.06.031
Popis:	Under the ITER/ITA task, we have conducted the neutron streaming experiment simulating narrow and deep gaps at boundaries between ITER vacuum vessel and equatorial port plugs. Micro-fission chambers and some activation foils were used to measure fission rates and reaction rates to evaluate the relative fast and slow neutron fluences along the gap in the experimental assembly. The MCNP4C, TORT and Attila codes were used for the experimental analysis. From comparing our measurements and calculations, the following facts were found: (1) in case of a such narrow and deep gap structure, the calculation with MCNP, TORT and Attila codes and FENDL-2.1 is sufficient to predict fast neutron field inside the gap; (2) by scattering neutrons in the experimental room, experimental error considerably increased at the deeper region than 100 cm; (3) angular quadrature set of upward biased U315 and last collided source calculation on TORT and Attila were very important technique for accurate estimation of neutron transport.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f2314ac6a7b691820502f3fe4f7b9687 https://doi.org/10.1016/j.fusengdes.2008.06.031 Zobrazit plný text záznamu Full Text from ScienceDirect