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

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

doi:10.1016/j.nimb.2019.06.007

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

Liu, J. H., Xu, X., Zhang, P., Shuai, P., Yan, X. L., Zhang, Y. H., et al. (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. doi:10.1016/j.nimb.2019.06.007.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-A3C1-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-A3C2-7

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https://doi.org/10.1016/j.nimb.2019.06.007 (Publisher version) Open Access status unknown

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Liu, J. H., Author
Xu, X., Author
Zhang, P., Author
Shuai, P., Author
Yan, X. L., Author
Zhang, Y. H., Author
Wang, M., Author
Litvinov, Y. A.¹, Author
Xu, H. S., Author
Blaum, K.¹, Author
Bao, T., Author
Chen, H., Author
Chen, X. C., Author
Chen, R. J., Author
Fu, C. Y., Author
Liu, D. W., Author
Ge, W. W., Author
Mao, R. S., Author
Ma, X. W., Author
Sun, M. Z., Author
Tu, X. L., AuthorXing, Y. M., AuthorYang, J. C., AuthorYuan, Y. J., AuthorZeng, Q., AuthorZhou, X., AuthorZhou, X. H., AuthorZhan, W. L., AuthorLitvinov, S., AuthorUesaka, T., AuthorYamaguchi, Y., AuthorYamaguchi, T., AuthorOzawa, A., AuthorSun, B. H., Author more..

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1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548

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MPINP: Speichertechnik - Abteilung Blaum

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

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Dates: Date issued: 2020-01-15

Publication Status: Issued

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Identifiers: DOI: 10.1016/j.nimb.2019.06.007

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Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

Abbreviation : NIM B

Source Genre: Journal

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Publ. Info: Amsterdam : Elsevier B.V.

Pages: - Volume / Issue: 463 Sequence Number: - Start / End Page: 138 - 142 Identifier: ISSN: 0168-583X
CoNE: https://pure.mpg.de/cone/journals/resource/954925484704