TY - JOUR
T1 - A new half-life determination of 59Ni
AU - Rühm, W.
AU - Schneck, B.
AU - Knie, K.
AU - Korschinek, G.
AU - Zerle, L.
AU - Nolte, E.
AU - Weselka, D.
AU - Vonach, H.
PY - 1994/3
Y1 - 1994/3
N2 - An enriched 58Ni sample has been irradiated with thermal neutrons together with an enriched 54Fe target. After chemical purification of the nickel sample, the produced radioactivities of 59Ni and 55Fe were measured with a silicon detector. The half-life of 59Ni has been deduced to be 108,000 ± 13,000 years. This halflife is larger than the commonly adopted half-life value of 76,000 ± 5000 years but is in full agreement with 59Ni concentration and activity measurements of the meteorite Admire. With accelerator mass spectrometry, the cross-section of the reaction 60Ni(n,2n)59Ni for 14.8 MeV neutrons has been measured to be 410 ± 100 mb.
AB - An enriched 58Ni sample has been irradiated with thermal neutrons together with an enriched 54Fe target. After chemical purification of the nickel sample, the produced radioactivities of 59Ni and 55Fe were measured with a silicon detector. The half-life of 59Ni has been deduced to be 108,000 ± 13,000 years. This halflife is larger than the commonly adopted half-life value of 76,000 ± 5000 years but is in full agreement with 59Ni concentration and activity measurements of the meteorite Admire. With accelerator mass spectrometry, the cross-section of the reaction 60Ni(n,2n)59Ni for 14.8 MeV neutrons has been measured to be 410 ± 100 mb.
UR - http://www.scopus.com/inward/record.url?scp=4243860533&partnerID=8YFLogxK
U2 - 10.1016/0032-0633(94)90085-X
DO - 10.1016/0032-0633(94)90085-X
M3 - Article
AN - SCOPUS:4243860533
SN - 0032-0633
VL - 42
SP - 227
EP - 230
JO - Planetary and Space Science
JF - Planetary and Space Science
IS - 3
ER -