A novel ion cooling trap for multi-reflection time-of-flight mass spectrograph

被引：21

作者：

Ito, Y. ^{[1
,2
]}

Schury, P. ^{[1
,2
,6
]}

Wada, M. ^{[1
]}

Naimi, S. ^{[1
]}

Smorra, C. ^{[1
,3
]}

Sonoda, T. ^{[1
]}

Mita, H. ^{[1
,2
]}

Takamine, A. ^{[1
,4
]}

Okada, K. ^{[1
,5
]}

Ozawa, A. ^{[2
]}

Wollnik, H. ^{[1
,6
]}

机构：

[1] RIKEN, Nishina Accelerator Based Res Ctr, SLOWRI Team, Wako, Saitama 3510198, Japan

[2] Univ Tsukuba, Tsukuba, Ibaraki 3058577, Japan

[3] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[4] Aoyama Gakuin Univ, Shibuya Ku, Tokyo 1508366, Japan

[5] Sophia Univ, Chiyoda Ku, Tokyo 1028554, Japan

[6] New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2013年 / 317卷

基金：

日本学术振兴会;

关键词：

Mass measurements; Unstable nuclei; Low-energy beam; Ion trap; CELL;

D O I：

10.1016/j.nimb.2013.07.069

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A radiofrequency quadrupole ion trap system for use with a multi-reflection time-of-flight mass spectrograph (MRTOF) for short-lived nuclei has been developed. The trap system consists of two different parts, an asymmetric taper trap and a flat trap. The ions are cooled to a sufficient small bunch for precise mass measurement with MRTOF in only 2 ms cooling time in the flat trap, then orthogonally ejected to the MRTOF for mass analysis. A trapping efficiency of approximate to 27% for Na-23(+) and approximate to 5.1% for Li-7(+) has been achieved. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：544 / 549

页数：6

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