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

J. H. Liu; X. Xu; P. Zhang; P. Shuai; X. L. Yan; Y. H. Zhang; M. Wang; Yu A. Litvinov; H. S. Xu; K. Blaum; T. Bao; H. Chen; X. C. Chen; R. J. Chen; C. Y. Fu; D. W. Liu; W. W. Ge; R. S. Mao; X. W. Ma; M. Z. Sun; X. L. Tu; Y. M. Xing; J. C. Yang; Y. J. Yuan; Q. Zeng; X. Zhou; X. H. Zhou; W. L. Zhan; S. Litvinov; T. Uesaka; Y. Yamaguchi; T. Yamaguchi; A. Ozawa; B. H. Sun

doi:10.1016/j.nimb.2019.06.007

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

J. H. Liu
, X. Xu^*
, P. Zhang
, P. Shuai
, X. L. Yan
, Y. H. Zhang
, M. Wang
, Yu A. Litvinov
, H. S. Xu
, K. Blaum
, T. Bao
, H. Chen
, X. C. Chen
, R. J. Chen
, C. Y. Fu
, D. W. Liu
, W. W. Ge
, R. S. Mao
, X. W. Ma
, M. Z. Sun

X. L. Tu, Y. M. Xing, J. C. Yang, Y. J. Yuan, Q. Zeng, X. Zhou, X. H. Zhou, W. L. Zhan, S. Litvinov, T. Uesaka, Y. Yamaguchi, T. Yamaguchi, A. Ozawa, B. H. Sun

^*Corresponding author for this work

School of Physics

CAS - Institute of Modern Physics
University of Chinese Academy of Sciences
GSI Helmholtz Centre for Heavy Ion Research
Max Planck Institute for Nuclear Physics
East China University of Technology
RIKEN
Saitama University
University of Tsukuba

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

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 5.2×10⁵, though at the cost of about 40% ion loss.

Original language	English
Pages (from-to)	138-142
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	463
DOIs	https://doi.org/10.1016/j.nimb.2019.06.007
State	Published - 15 Jan 2020

Keywords

Isochronous mass spectrometry
Mass resolving power
Storage ring

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10.1016/j.nimb.2019.06.007

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Liu, J. H., Xu, X., Zhang, P., Shuai, P., Yan, X. L., Zhang, Y. H., Wang, M., Litvinov, Y. A., Xu, H. S., Blaum, K., Bao, T., Chen, H., Chen, X. C., Chen, R. J., Fu, C. Y., Liu, D. W., Ge, W. W., Mao, R. S., Ma, X. W., ... Sun, B. H. (2020). Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 463, 138-142. https://doi.org/10.1016/j.nimb.2019.06.007

@article{1a28b07d012c40189bf99f0fa24ce154,

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

abstract = "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 5.2×105, though at the cost of about 40\% ion loss.",

keywords = "Isochronous mass spectrometry, Mass resolving power, Storage ring",

author = "Liu, \{J. H.\} and X. Xu and P. Zhang and P. Shuai and Yan, \{X. L.\} and Zhang, \{Y. H.\} and M. Wang and Litvinov, \{Yu A.\} and Xu, \{H. S.\} and K. Blaum and T. Bao and H. Chen and Chen, \{X. C.\} and Chen, \{R. J.\} and Fu, \{C. Y.\} and Liu, \{D. W.\} and Ge, \{W. W.\} and Mao, \{R. S.\} and Ma, \{X. W.\} and Sun, \{M. Z.\} and Tu, \{X. L.\} and Xing, \{Y. M.\} and Yang, \{J. C.\} and Yuan, \{Y. J.\} and Q. Zeng and X. Zhou and Zhou, \{X. H.\} and Zhan, \{W. L.\} and S. Litvinov and T. Uesaka and Y. Yamaguchi and T. Yamaguchi and A. Ozawa and Sun, \{B. H.\}",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2020",

month = jan,

day = "15",

doi = "10.1016/j.nimb.2019.06.007",

language = "英语",

volume = "463",

pages = "138--142",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

}

Liu, JH, Xu, X, Zhang, P, Shuai, P, Yan, XL, Zhang, YH, Wang, M, Litvinov, YA, Xu, HS, Blaum, K, Bao, T, Chen, H, Chen, XC, Chen, RJ, Fu, CY, Liu, DW, Ge, WW, Mao, RS, Ma, XW, Sun, MZ, Tu, XL, Xing, YM, Yang, JC, Yuan, YJ, Zeng, Q, Zhou, X, Zhou, XH, Zhan, WL, Litvinov, S, Uesaka, T, Yamaguchi, Y, Yamaguchi, T, Ozawa, A & Sun, BH 2020, 'Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 463, pp. 138-142. https://doi.org/10.1016/j.nimb.2019.06.007

TY - JOUR

T1 - Improving the resolving power of Isochronous Mass Spectrometry by employing an in-ring mechanical slit

AU - Liu, J. H.

AU - Xu, X.

AU - Zhang, P.

AU - Shuai, P.

AU - Yan, X. L.

AU - Zhang, Y. H.

AU - Wang, M.

AU - Litvinov, Yu A.

AU - Xu, H. S.

AU - Blaum, K.

AU - Bao, T.

AU - Chen, H.

AU - Chen, X. C.

AU - Chen, R. J.

AU - Fu, C. Y.

AU - Liu, D. W.

AU - Ge, W. W.

AU - Mao, R. S.

AU - Ma, X. W.

AU - Sun, M. Z.

AU - Tu, X. L.

AU - Xing, Y. M.

AU - Yang, J. C.

AU - Yuan, Y. J.

AU - Zeng, Q.

AU - Zhou, X.

AU - Zhou, X. H.

AU - Zhan, W. L.

AU - Litvinov, S.

AU - Uesaka, T.

AU - Yamaguchi, Y.

AU - Yamaguchi, T.

AU - Ozawa, A.

AU - Sun, B. H.

PY - 2020/1/15

Y1 - 2020/1/15

N2 - 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 5.2×105, though at the cost of about 40% ion loss.

AB - 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 5.2×105, though at the cost of about 40% ion loss.

KW - Isochronous mass spectrometry

KW - Mass resolving power

KW - Storage ring

UR - https://www.scopus.com/pages/publications/85067171422

U2 - 10.1016/j.nimb.2019.06.007

DO - 10.1016/j.nimb.2019.06.007

M3 - 文章

AN - SCOPUS:85067171422

SN - 0168-583X

VL - 463

SP - 138

EP - 142

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

ER -

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

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