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Liu, J.H.; Xu, X.; Zhang, P.; Shuai, P.; Yan, X.L.; Zhang, Y.H.; Wang, M.; Litvinov, Yu.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.
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 01/2020, Letnik: 463Journal Article
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.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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