Decay Spectroscopy of Neutron-Rich Lanthanide Isotopes.
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Accession number;99A1007969
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| Title;Decay Spectroscopy of Neutron-Rich Lanthanide Isotopes. |
| Author;
ICHIKAWA SHIN'ICHI
(Japan Atomic Energy Res. Inst., Advanced Sci. Res. Center, JPN)
OSA AKIHIKO
(Japan At. Energy Res. Inst.)
HABA HIROMITSU
(Japan Atomic Energy Res. Inst., Advanced Sci. Res. Center, JPN)
NISHINAKA ICHIRO
(Japan Atomic Energy Res. Inst., Advanced Sci. Res. Center, JPN)
KOJIMA YASUAKI
(Hiroshima Univ., Fac. of Eng.)
SHIBATA MICHIHIRO
(Nagoya Univ., Grad. Sch.)
OURA YASUJI
(Tokyo Metrop. Univ.)
SAKAMA MINORU
(Tokyo Metrop. Univ.)
KAWADE KIYOSHI
(Nagoya Univ., Grad. Sch.)
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Journal Title;Abstracts of Papers. Symposium on Radiochemistry
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Journal Code:F0139B
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ISSN:1345-2762
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VOL.43rd;NO.;PAGE.54(1999)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Eight new neutorn-rich lanthanide isotopes produced in the proton-induced fission of 238U have been identified using the JAERI on-line isotope separator (JAERI-ISOL) coupled to a gas-jet transport system. For six of these, each half-life was determined: ,159Pm (2 .+-. -1 s),161Sm (4.8 .+-. 0.8 s), 165Gd (10.3 .+-. 1.6 s), 166Tb (21 .+-. 6 s), 167Tb (19.4 .+-. 2.7 s) and 168Tb (8.2 .+-. 1.3 s). Furthermore, the first 2+ and 4+ states of the daughter nuclides 166Dy and 168Dy were derived through the beta- decay studies of 166Tb and 168Tb. Excited states of the daughter nucleus 167Dy has also been derived for the first time. The observed half-lives were compared with theoretical calculations. The derived level energies in 166,167,168Dy were discussed in terms of nuclear deformation. (author abst.) |
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