International Conference on Nuclear Data for Science and Technology 2007
DOI: 10.1051/ndata:07596

Experimental study on breakup reaction of beryllium and carbon induced with 14-MeV neutrons based on emitted charged-particle measurements

Keitaro Kondo¹, Isao Murata¹, Kentaro Ochiai², Hiroyuki Miyamaru¹, Naoyoshi Kubota^{2, 3}, Chikara Konno² and Takeo Nishitani<sup>2

1</sup>  Osaka University, Yamada-oka 2-1, Suita, Osaka 565-0871, Japan
²  Japan Atomic Energy Agency, Shirakata Shirane 2-4, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
³  Nippon Steel Corporation, 20-1 Shintomi, Futtsu-city, Chiba 293-8511, Japan

ktaro@ef.eie.eng.osaka-u.ac.jp

Published online: 21 May 2008

Abstract
Detailed measurements of α-particle emission double differential cross section for beryllium and carbon with 14-MeV incident neutrons were carried out. In order to identify contributing reaction channels to the ⁹Be(n,2n + 2α) and ¹²C(n,n' + 3α) reactions, we attempted to reproduce energy distributions of emitted particles by Monte Carlo calculations according to reaction kinematics of a lot of channels which contribute to the reactions. As for the ⁹Be(n,2n + 2α) reaction, a contribution of the ⁹Be(n,α)⁶He* channels and the simultaneous breakup channel was suggested to account for the energy and angular distribution of emitted α-particles and neutrons. As for the ¹²C(n,n' + 3α) reaction, the ¹²C(n,α)⁹Be* channels were largely contributed and well reproduced the experimental data.

© CEA 2008