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Accession number;01A0231182
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| Title;Search for Th-229m with UV comparable excitation energy. |
| Author;
MITSUGASHIRA TOSHIAKI
(Inst. for Mater. Res., Tohoku Univ.)
HARA MITSUO
(Inst. for Mater. Res., Tohoku Univ.)
OTSUKI TSUTOMU
(Tohokudai Daigakuinkakurigakukenkyuka)
SHINOHARA ATSUSHI
(Osakadai Daigakuinrigakukenkyuka)
KASAMATSU YOSHITAKA
(Osakadai Daigakuinrigakukenkyuka)
TAKAMIYA KOICHI
(Kyoto Univ., Res. Reactor Inst.)
YAMANA HAJIMU
(Kyoto Univ., Res. Reactor Inst.)
KIKUNAGA HIDETOSHI
(Kanazawadai Daigakuinrigakukenkyuka)
NAKANISHI TAKASHI
(Fac. of Sci., Kanazawa Univ.)
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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.44th;NO.;PAGE.25(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The excitation energy of Th-229m is known to be 3.5 eV. In order to produce Th-229m through (.GAMMA.,n) reaction, a Th-230 target of high isotopic purity was irradiated by 22 MeV bremsstrahlung and the .ALPHA.-spectrum of the reaction products was examined. The result shows the formation of new .ALPHA.-emitter that has much shorter half-life than Th-229 and its .ALPHA.-energy coincides with the expected .ALPHA.-decay energy of Th-229m. (author abst.) |
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