Analysis of Core Physics Experiments on Fresh and Irradiated BR3 MOX Fuel in REBUS Program

Autor:	Koichi Sakurada, Yamato Hayashi, Kazuo Azekura, Toru Yamamoto, Yoshihira Ando, Shigeaki Aoki, Katsuyuki Kawashima
Rok vydání:	2009
Předmět:	Physics Nuclear and High Energy Physics Nuclear engineering Radiochemistry Uranium dioxide Monte Carlo method Nuclear reactor Rod law.invention Rebus chemistry.chemical_compound Nuclear Energy and Engineering chemistry Nuclear reactor core law MOX fuel Burnup
Zdroj:	Journal of Nuclear Science and Technology. 46:484-509
ISSN:	1881-1248 0022-3131
Popis:	As part of an international experimental program REBUS, core physics experiments have been implemented on a UO2 core, which consists of 3.3 and 4.0 wt% UO2 fuel rods in a square pitch of 1.26 cm, and two partial MOX cores, which replace 7 × 7 UO2 fuel rods in the center of the UO2 core by fuel bundles made of fresh BR3 MOX fuel or irradiated BR3 MOX fuel with an average burnup of 20GWd/t. Burnup calculations of the BR3 MOX fuel were performed using a general-purpose neutronic calculation code SRAC, and core calculations of the three critical cores were carried out using SRAC, a transport calculation code THREEDANT, and a continuous-energy Monte Carlo code MVP. The measured inventories of major U and Pu isotopes on a sample taken from the BR3 MOX fuel agree with the results of the burnup calculations within 3% deviation. The k eff's of the three cores are from 0.985 to 1.002. The measured burnup reactivity of the irradiated BR3 MOX fuel was well reproduced by the three types of core calculations. The influ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd03c5235c9eaaf7e3b3809ffdfea3ab https://doi.org/10.1080/18811248.2007.9711556 Zobrazit plný text záznamu