TY  - JOUR
AU  - n_TOF Collaboration
AU  - Gunsing, F.
AU  - Berthoumieux, E.
AU  - Borella, A.
AU  - Belgya, T.
AU  - Szentmiklosi, L.
AU  - Schillebeeckx, P.
AU  - Drohe, J. C.
AU  - Wynants, R.
AU  - Colonna, N.
AU  - Marrone, S.
AU  - Tagliente, G.
AU  - Terlizzi, R.
AU  - Domingo-Pardo, C.
AU  - Tain, J. L.
AU  - Martinez, T.
AU  - Massimi, C.
AU  - Mastinu, P. M.
AU  - Milazzo, P. M.
PY  - 2011
DA  - 2011//
TI  - Neutron Capture on (209)Bi: Determination of the Production Ratio of (210m)Bi/(210g)Bi
T2  - J. Korean Phys. Soc.
JO  - Journal of the Korean Physical Society
SP  - 1670
EP  - 1675
VL  - 59
IS  - 2
PB  - Korean Physical Soc
KW  - ND2010
KW  - Nuclear data
KW  - Neutron capture
KW  - Branching ratio
KW  - Statistical decay
KW  - (209)Bi
KW  - (210)Bi
KW  - (210)Po
AB  - Neutron capture on (209)Bi produces either an isomeric state (210m)Bi with a half life of 3 x 106 years, or the ground state (210g)Bi which decays with a half life of 5 days to the alpha emitter (210)Po. Therefore the neutron capture cross section ratio (209)Bi(n,gamma)(210m)Bi/(210g)Bi plays an important role in predicting the short- and long-term radio-toxicity produced by (209)Bi under neutron irradiation. This ratio is dependent on the neutron energy. We have measured this ratio for cold neutrons at the cold neutron beam facility of the Budapest Neutron Centre by observing the population of the ground-and the metastable state using high resolution gamma-ray spectroscopy. The same technique has been used at the pulsed white neutron source GELINA of the IRMM, Geel in combination with the neutron time-of-flight technique. Results for the neutron-energy dependent branching ratio will be presented. In addition we performed simulations using a statistical decay code.
SN  - 0374-4884
UR  - https://doi.org/10.3938/jkps.59.1670
DO  - 10.3938/jkps.59.1670
LA  - English
N1  - WOS:000294080700051
ID  - n_TOFCollaboration_etal2011
ER  -