Validation of radioactivity calculation code system DCHAIN-SP

Kai, Tetsuya; Maekawa, Fujio; Kasugai, Yoshimi; Niita, Koji*; Takada, Hiroshi; Meigo, Shinichiro; Ikeda, Yujiro

Proceedings of ICANS-XVI, Volume 3, p.1041 - 1049, 2003/07

A radioactivity calculation code system DCHAIN-SP was validated in view of the following points: (1) Activation cross section data library for the energy region below 20 MeV. (2) NMTC/JAM code for calculation of the nuclide yield induced by the high energy particles above 20 MeV. (3) DCHAIN-SP code system which treats overall nuclide yield by the high energy particles. 42 of activation cross sections and 22 tritium production cross sections were revised so that the DCHAIN-SP calculation could improve its accuracy within 30% for typical materials irradiated by 14-MeV neutrons. The NMTC/JAM code was improved to implement the GEM model for better estimation of light fragment production. Accuracy of the nuclide yield for proton induced reactions in 10 MeV - 10 GeV still remains in the level of a factor of 2 to 3. The DCHAIN-SP code system was employed for the analysis of time evolution of the radioactivity produced in the samples on a thick mercury target bombarded with 2.83 and 24 GeV protons. It is found that the code system agrees with the measured data by a factor of 2 to 3.

Measurement of spectrum for thermal neutrons produced from HO moderator coupled with mercury target

Meigo, Shinichiro; Maekawa, Fujio; Kasugai, Yoshimi; Nakashima, Hiroshi; Ikeda, Yujiro; Watanabe, Noboru; Ino, Takashi*; Sato, Setsuo*; ASTE Collaboration

JAERI-Conf 2001-002, p.941 - 954, 2001/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2001-002-Part2.pdf

no abstracts in English

HETC-3STEP calculations of proton induced nuclide production cross sections at incident energies between 20 MeV and 5 GeV

Takada, Hiroshi; Yoshizawa, Nobuaki*; *

JAERI-Research 96-040, 91 Pages, 1996/08

JAERI-Research-96-040.pdf:2.2MB

no abstracts in English