Activation cross section measurement of reactions producing short-lived nuclei at neutron energy between 13.4 MeV and 14.9 MeV

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:62149

Kasugai, Y; Yamamoto, H; Kawade, K ^[1]; Ikeda, Y; Uno, Y; Maekawa, H ^[2]

---

1. Nagoya Univ. (Japan)
2. Japan Atomic Energy Research Institute, Tokai-mura (Japan)

Twelve cross sections for (n,2n), (n,p), (n,np) and (n,n{alpha}) reactions producing short-lived nuclei with half-lives between 15.8 s and 10.3 min have been measured in the energy range between 13.4 and 14.9 MeV by the activation method. The 14 MeV neutrons were generated by using FNS (Fusion Neutronics Source) facility at JAERI. The {gamma}-rays emitted from the irradiated samples were measured with high-purity germanium (HPGe) detectors. The effective energy of incident neutrons were determined by the Nb/Zr method. All cross section of the {sup 27}Al(n,p){sup 27}Mg reaction which was determined by referring to the cross section of the {sup 27}Al(n,{alpha}){sup 24}Na reaction. The cross sections of {sup 96}Zr(n,np){sup 95}Y, {sup 120}Sn(n,np){sup 119g}In and {sup 180}Hf(n,p){sup 180}Lu reactions were measured for the first time. The present results were compared with previous data and the evaluated data of JENDL-3 and ENDF/B-VI. The comparison show that some discrepancies exist. Our systematics for (n,p) reactions agrees with the present data within 30%.

• OSTI ID: 62149
• Report Number(s): CONF-940507--Vol.2
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CROSS SECTIONS
GERMANIUM 74
GERMANIUM 76
HAFNIUM 180
IRON 57
MEV RANGE 10-100
NEUTRON REACTIONS
NIOBIUM 93
RUTHENIUM 100
THERMONUCLEAR REACTORS
TIN 120
TITANIUM 46
TITANIUM 47
ZIRCONIUM 96