Identification of μs-isomers produced in the fragmentation of a 112Sn beam
Identification of μs-isomers produced in the fragmentation of a 112Sn beam
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112Sn 光束碎裂中产生的 μs 异构体的鉴定
DOI：
10.1016/0370-2693(95)00501-b
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发表时间：
1995
影响因子：
4.4
通讯作者：
J. Żylicz
中科院分区：
文献类型：
--
作者：
R. Grzywacz;R. Anne;G. Auger;D. Bazin;C. Borcea;V. Borrel;J. Corre;T. Dörfler;A. Fomichov;M. Gaelens;D. Guillemaud;R. Hue;M. Huyse;Z. Janas;H. Keller;M. Lewitowicz;S. Lukyanov;A. Mueller;Y. Penionzhkevich;M. Pfützner;F. Pougheon;K. Rykaczewski;M. Saint;K. Schmidt;W. Schmidt;O. Sorlin;J. Szerypo;O. Tarasov;J. Wauters;J. Żylicz
在GANIL的LISE 3谱仪末焦点上观测到了40多个短寿命（T12从50 ns到70 μs）同质异能态的衰变，其中包括一个新的同质异能态66 mAs，它是由58 A·MeV和63 A·MeV的112 Sn束流在镍靶上碎裂产生的。它们的检测基于所识别的离子与特征γ辐射的缓慢（~ 10 μs）时间相关性，代表了一种寻找新的异构体的新方法，并且可用于弹丸碎片分离器实验的明确同位素识别。测定异构体产率和异构体与总产量的比率。
Decays of over forty short-lived (T1 2from ≈ 50 ns to 70 μs) isomeric states including a new isomer66mAs produced in the fragmentation of a112Sn beam (58 A·MeV, 63 A·MeV) on anatNi target were observed at the final focus of the LISE3 spectrometer at GANIL. Their detection, based on the slow (≈ 10 μs) time correlation of identified ions with the characteristic γ-radiation, represents a novel method to search for new isomers and can be used for unambiguous isotope identification for projectile fragment separator experiments. Isomeric yields and isomer-to-total production ratios were determined.