A laser ablation ion source for gas cell studies

被引：3
作者：
Davies, D. A. [1 ]
Morrissey, D. J.
Bollen, G.
Lofy, P. A.
Schwarz, S.
Ottarson, J.
机构：
[1] Michigan State Univ, Natl Supercond Cyclotron Lab, E Lansing, MI 48824 USA
[2] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA
[3] Michigan State Univ, Dept Phys, E Lansing, MI 48824 USA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 569卷 / 03期
基金：
美国国家科学基金会;
关键词：
laser ablation; ion source; gas cell; ion trap; LOW-ENERGY-BEAM; TRAP FACILITY; GRAPHITE; CLUSTERS; EMISSION; DYNAMICS;
D O I：
10.1016/j.nima.2006.09.055
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A high-power laser ablation ion Source has been developed, characterized and implemented as part of the Low Energy Beam and Ion Trap (LEBIT) experiment at the National Superconducting Cyclotron Laboratory. LEBIT was developed to make precision measurements of rare isotopes, including mass measurements with a Penning trap. A key component of LEBIT is a gas stopping station that thermalizes nuclear reaction products in a helium-filled cell, followed by ion extraction using electrostatic ion-manipulation and differential pumping. Atomic ions and clusters needed to test the LEBIT system and to further understand properties of the gas cell were created using a new laser ablation system under various conditions, including atmospheric pressure. Laser ablation studies of carbon performed in the gas cell with the second harmonic, 532 urn, from a Q-switched Nd:YAG laser Lire reported here. The extraction time and the ion mobility for ions traveling through the gas cell were measured, and the chemical evolution of the molecular ions created during the ablation was observed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：883 / 889
页数：7
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