Search for efficient laser resonance ionization schemes of tantalum using a newly developed time-of-flight mass-spectrometer in KISS

被引：4

作者：

Mukai, M. ^{[1
,2
,4
]}

Hirayama, Y. ^{[2
]}

Ishiyama, H. ^{[2
]}

Jung, H. S. ^{[2
]}

Miyatake, H. ^{[2
]}

Oyaizu, M. ^{[2
]}

Watanabe, Y. X. ^{[2
]}

Kimura, S. ^{[1
,2
]}

Ozawa, A. ^{[1
]}

Jeong, S. C. ^{[3
]}

Sonoda, T. ^{[4
]}

机构：

[1] Univ Tsukuba, Tsukuba, Ibaraki 3050006, Japan

[2] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies IPNS, Wako Nucl Sci Ctr WNSC, Wako, Saitama 3510198, Japan

[3] Inst Basic Sci IBS, Rare Isotope Sci Project, Daejeon 305811, South Korea

[4] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2016年 / 376卷

关键词：

Laser resonance ionization; Mass-spectrometer; Tantalum;

D O I：

10.1016/j.nimb.2016.02.017

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The technique of laser resonance ionization is employed for an element-selective ionization of multi nucleon transfer reaction products which are stopped and neutralized in a gas cell filled with argon gas at 50 kPa. We have been searching for efficient laser ionization schemes for refractory elements of Z= 73-78 using a time-of-flight mass-spectrometer (TOF-MS) chamber. To evaluate the isotope shift and ionization efficiency for each candidate of the ionization scheme, isotope separation using the TOF-MS was devised. The TOF-MS was designed to separate the isotopes using two-stage linear acceleration with a mass resolving power M/Delta M of >350. A mass resolving power of 250 was experimentally confirmed by measuring the TOF of laser-ionized tantalum (Z= 73) ions with mass number 181. We searched for a laser resonance ionization scheme of tantalum using the TOF-MS. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：73 / 76

页数：4

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