Measurement of tritium production rate in water cooled pebble bed multi-layered blanket mockup by DT neutron irradiation experiment

Autor:	Keitaro Kondo, Chikara Konno, Michinori Yamauchi, Satoshi Sato, Masayuki Wada, Yury Verzilov, Takeo Nishitani, Kentaro Ochiai, Naoyoshi Kubota
Rok vydání:	2007
Předmět:	Nuclear and High Energy Physics Materials science Mockup Water cooled Nuclear engineering Nuclear data Neutron Tritium Blanket Condensed Matter Physics Pebble Neutron irradiation
Zdroj:	Nuclear Fusion. 47:517-521
ISSN:	1741-4326 0029-5515
DOI:	10.1088/0029-5515/47/7/003
Popis:	For the first time, tritium production rates in the water cooled pebble bed blanket are experimentally examined by using DT neutrons with two partial mockups; multi-layered mockup with water and pebble bed mockup. Tritium production rates (TPRs) are calculated by numerical analyses using Monte Carlo code MCNP-4C with nuclear data libraries FENDL-2.1 and JENDL-3.3. For experimental analysis on the pebble bed mockup, precise modelling method is proposed using the hexagonal close-packed heterogeneous geometry. Prediction uncertainties of TPRs are clarified through the experimental analyses. Ratios of the calculation results to the experimental results on local TPRs are 0.89–1.10 in the multi-layered mockup, and 0.95–1.13 in the pebble bed mockup. The calculation results on integrated tritium productions agree well with the experimental ones in both mockups. It is clarified that integrated tritium productions can be accurately evaluated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::608c7b7c01c81ee855db7b4cb5f40a2f https://doi.org/10.1088/0029-5515/47/7/003 Zobrazit plný text záznamu