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
收藏
页码：544 / 549
页数：6
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