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

doi:10.1016/j.nimb.2019.06.007

	Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit
	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
	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
DOI	10.1016/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.
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关键词	TRANSITION ENERGY GAMMA(T) ; STORAGE-RING ; EXOTIC NUCLEI ; PROJECT ; PHYSICS ; MODE ; IONS
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000518699900024
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
内容类型	期刊论文
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.