First application of combined isochronous and Schottky mass spectrometry: Half-lives of fully ionized Cr-49(24+) and Fe-53(26+) atoms
First application of combined isochronous and Schottky mass spectrometry: Half-lives of fully ionized Cr-49(24+) and Fe-53(26+) atoms
复制标题
等时和肖特基质谱联用的首次应用：完全电离的 Cr-49(24 ) 和 Fe-53(26 ) 原子的半衰期
DOI：
10.1103/physrevc.97.014321
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发表时间：
2018
影响因子：
3.1
通讯作者：
Xu H. S.
中科院分区：
文献类型：
--
作者：
Tu X. L.;Chen X. C.;Zhang J. T.;Shuai P.;Yue K.;Xu X.;Fu C. Y.;Zeng Q.;Zhou X.;Xing Y. M.;Wu J. X.;Mao R. S.;Mao L. J.;Fang K. H.;Sun Z. Y.;Wang M.;Yang J. C.;Litvinov Yu. A.;Blaum K.;Zhang Y. H.;Yuan Y. J.;Ma X. W.;Zhou X. H.;Xu H. S.
在实验储存环（CSRe）中，用等离子体肖特基质谱法测量了高电荷态离子的寿命。完全电离的二离子是在原束的射弹碎裂过程中产生的，并储存在调谐到等离子光学模式的CSRe中。新的谐振肖特基探测器被应用于监测存储的未冷却离子的强度。提取的半衰期min和min与针对禁用的电子捕获分支校正的文献半衰期值非常一致。这是实现在未来储存环设施上同时测量奇异核的质量和寿命的重要的原理验证步骤。
Lifetime measurements of-decaying highly charged ions have been performed in the experimental storage ring (CSRe) by applying the isochronous Schottky mass spectrometry. The fully ionizedandions were produced in projectile fragmentation ofprimary beam and were stored in the CSRe tuned into the isochronous ion-optical mode. The new resonant Schottky detector was applied to monitor the intensities of stored uncooledandions. The extracted half-livesmin andmin are in excellent agreement with the literature half-life values corrected for the disabled electron capture branchings. This is an important proof-of-principle step towards realizing the simultaneous mass and lifetime measurements on exotic nuclei at the future storage ring facilities.