Experimental study on breakup reaction of beryllium and carbon induced with 14-MeV neutrons based on emitted charged-particle measurementsKeitaro Kondo1, Isao Murata1, Kentaro Ochiai2, Hiroyuki Miyamaru1, Naoyoshi Kubota2, 3, Chikara Konno2 and Takeo Nishitani2
1 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
Published online: 21 May 2008
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