Ionization of highly charged iodine ions near the Bohr velocity

Xianming Zhou; Rui Cheng; Yu Lei; Yuanbo Sun; Jieru Ren; Shidong Liu; Jiachuan Deng; Yongtao Zhao; Guoqing Xiao

doi:10.1016/j.nimb.2014.09.030

Ionization of highly charged iodine ions near the Bohr velocity

Xianming Zhou
, Rui Cheng
, Yu Lei
, Yuanbo Sun
, Jieru Ren
, Shidong Liu
, Jiachuan Deng
, Yongtao Zhao^*
, Guoqing Xiao

^*Corresponding author for this work

CAS - Institute of Modern Physics
University of Chinese Academy of Sciences

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

6 Citations (Scopus)

Abstract

We have measured the L-shell X-rays of iodine from the collisions of 3 MeV I^{q+(q=15,20,22,25,26)} ions with an iron target. It is found that the X-ray yield decreases with the increasing initial charge state. The energy of the subshell X-ray has a blue shift, which is independent of the projectile charge state. In addition, the relative intensity ratios of Lβ_1,3,4 and Lβ_2,15 to Lα_1,2 X-ray are obtained and compared with the theoretical calculations. That they are larger than for a singly ionized atom can be understood by the multiple ionization effect of the outer-shell electrons.

Original language	English
Pages (from-to)	133-136
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	342
DOIs	https://doi.org/10.1016/j.nimb.2014.09.030
Publication status	Published - 1 Jan 2015
Externally published	Yes

Keywords

Ion-atom collisions
L-shell X-ray
Multiple ionization

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10.1016/j.nimb.2014.09.030

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title = "Ionization of highly charged iodine ions near the Bohr velocity",

abstract = "We have measured the L-shell X-rays of iodine from the collisions of 3 MeV Iq+(q=15,20,22,25,26) ions with an iron target. It is found that the X-ray yield decreases with the increasing initial charge state. The energy of the subshell X-ray has a blue shift, which is independent of the projectile charge state. In addition, the relative intensity ratios of Lβ1,3,4 and Lβ2,15 to Lα1,2 X-ray are obtained and compared with the theoretical calculations. That they are larger than for a singly ionized atom can be understood by the multiple ionization effect of the outer-shell electrons.",

keywords = "Ion-atom collisions, L-shell X-ray, Multiple ionization",

author = "Xianming Zhou and Rui Cheng and Yu Lei and Yuanbo Sun and Jieru Ren and Shidong Liu and Jiachuan Deng and Yongtao Zhao and Guoqing Xiao",

year = "2015",

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doi = "10.1016/j.nimb.2014.09.030",

language = "English",

volume = "342",

pages = "133--136",

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TY - JOUR

T1 - Ionization of highly charged iodine ions near the Bohr velocity

AU - Zhou, Xianming

AU - Cheng, Rui

AU - Lei, Yu

AU - Sun, Yuanbo

AU - Ren, Jieru

AU - Liu, Shidong

AU - Deng, Jiachuan

AU - Zhao, Yongtao

AU - Xiao, Guoqing

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We have measured the L-shell X-rays of iodine from the collisions of 3 MeV Iq+(q=15,20,22,25,26) ions with an iron target. It is found that the X-ray yield decreases with the increasing initial charge state. The energy of the subshell X-ray has a blue shift, which is independent of the projectile charge state. In addition, the relative intensity ratios of Lβ1,3,4 and Lβ2,15 to Lα1,2 X-ray are obtained and compared with the theoretical calculations. That they are larger than for a singly ionized atom can be understood by the multiple ionization effect of the outer-shell electrons.

AB - We have measured the L-shell X-rays of iodine from the collisions of 3 MeV Iq+(q=15,20,22,25,26) ions with an iron target. It is found that the X-ray yield decreases with the increasing initial charge state. The energy of the subshell X-ray has a blue shift, which is independent of the projectile charge state. In addition, the relative intensity ratios of Lβ1,3,4 and Lβ2,15 to Lα1,2 X-ray are obtained and compared with the theoretical calculations. That they are larger than for a singly ionized atom can be understood by the multiple ionization effect of the outer-shell electrons.

KW - Ion-atom collisions

KW - L-shell X-ray

KW - Multiple ionization

UR - https://www.scopus.com/pages/publications/84908439650

U2 - 10.1016/j.nimb.2014.09.030

DO - 10.1016/j.nimb.2014.09.030

M3 - Article

AN - SCOPUS:84908439650

SN - 0168-583X

VL - 342

SP - 133

EP - 136

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 -

Ionization of highly charged iodine ions near the Bohr velocity

Abstract

Keywords

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