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Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit

文献类型：期刊论文

作者Liu, J. H.8,9; Xu, X.9; Zhang, P.9; Shuai, P.9; Yan, X. L.9; Zhang, Y. H.9; Wang, M.9; Litvinov, Yu. A.6,7,9; Xu, H. S.9; Blaum, K.6
刊名NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
出版日期2020-01-15
卷号463页码:138-142
关键词Storage ring Isochronous mass spectrometry Mass resolving power
ISSN号0168-583X
DOI10.1016/j.nimb.2019.06.007
通讯作者Xu, X.(xuxing@impcas.ac.cn) ; Wang, M.(wangm@impcas.ac.cn)
英文摘要Isochronous Mass Spectrometry (IMS) in heavy-ion storage rings is an excellent experimental method for precision mass measurements of exotic nuclei. In the IMS, the storage ring is tuned in a special isochronous ion-optical mode. Thus, the mass-over-charge ratios of the stored ions are directly reflected by their respective revolution times in first order. However, the inevitable momentum spread of secondary ions increases the peak widths in the measured spectra and consequently limits the achieved mass precision. In order to achieve a higher mass resolving power, the ring aperture was reduced to 60 mm by applying a mechanical slit system at the dispersive straight section. The momentum acceptance was reduced as well as better isochronous conditions were achieved. The results showed a significant improvement of the mass resolving power reaching 5.2 x 10(5), though at the cost of about 40% ion loss.
WOS关键词TRANSITION ENERGY GAMMA(T) ; STORAGE-RING ; EXOTIC NUCLEI ; PROJECT ; PHYSICS ; MODE ; IONS
资助项目National Key R&D Program of China[2018YF A0404401] ; National Key R&D Program of China[2016YFA0400504] ; National Nature Science Foundation of China[11605249] ; National Nature Science Foundation of China[11605248] ; National Nature Science Foundation of China[11605252] ; National Nature Science Foundation of China[11505267] ; National Nature Science Foundation of China[11575112] ; National Nature Science Foundation of China[11575007] ; CAS External Cooperation Program[GJHZ1305] ; CAS through the Key Research Program of Frontier Sciences[QYZDJ-SSW-SLH005] ; Key Research Program of the Chinese Academy of Sciences[XDPB09] ; Helmholtz-CAS Joint Research Group[HCJRG-108] ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme[682841] ; CAS President's International Fellowship Initiative Grant[2016VMA 043] ; Nuclear Astrophysics Virtual Institute (NAVI) of the Helmholtz Association ; CAS Light of West China Program
WOS研究方向Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种英语
WOS记录号WOS:000518699900024
出版者ELSEVIER
资助机构National Key R&D Program of China ; National Nature Science Foundation of China ; CAS External Cooperation Program ; CAS through the Key Research Program of Frontier Sciences ; Key Research Program of the Chinese Academy of Sciences ; Helmholtz-CAS Joint Research Group ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ; CAS President's International Fellowship Initiative Grant ; Nuclear Astrophysics Virtual Institute (NAVI) of the Helmholtz Association ; CAS Light of West China Program
源URL[http://119.78.100.186/handle/113462/140626]  
专题中国科学院近代物理研究所
通讯作者Xu, X.; Wang, M.
作者单位1.RIKEN, Nishina Ctr, Saitama 3510198, Japan
2.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
3.Univ Tsukuba, Inst Phys, Ibaraki 3058571, Japan
4.Saitama Univ, Dept Phys, Saitama 3388570, Japan
5.East China Univ Technol, Nanchang 100049, Jiangxi, Peoples R China
6.Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany
7.GSI Helmholtzzentrum Schwerionenforsch, Planckstr 1, D-64291 Darmstadt, Germany
8.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
9.Chinese Acad Sci, Key Lab High Precis Nucl Spect, Ctr Nucl Matter Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Liu, J. H.,Xu, X.,Zhang, P.,et al. Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2020,463:138-142.
APA Liu, J. H..,Xu, X..,Zhang, P..,Shuai, P..,Yan, X. L..,...&Sun, B. H..(2020).Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,463,138-142.
MLA Liu, J. H.,et al."Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 463(2020):138-142.

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来源：近代物理研究所

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