Selective laser ionization of radioactive Ni-isotopes

被引：35

作者：

Jokinen, A

Evensen, AH

Kugler, E

Lettry, J

Ravn, H

VanDuppen, P

Erdmann, N

Jading, Y

Kohler, S

Kratz, KL

Trautman, N

Wohr, A

Fedoseyev, VN

Mishin, VI

Tikhonov, V

机构：

[1] CERN,ISOLDE,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV MAINZ,INST KERNCHEM,D-55099 MAINZ,GERMANY

[3] RUSSIAN ACAD SCI,INST SPECT,TROITSK 142092,RUSSIA

[4] INST PHYS NUCL,GATCHINA 188530,RUSSIA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1997年 / 126卷 / 1-4期

基金：

俄罗斯基础研究基金会;

关键词：

resonance ionization; nickel; thick targets; fission reaction; laser ion source;

D O I：

10.1016/S0168-583X(97)01078-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A chemically selective laser ion source based on resonance ionization of atoms in a hot cavity has been applied in the study of Ni-isotopes at the CERN-ISOLDE on-line isotope separator, Laser ionization enhanced the yields of long-lived Ni-isotopes almost four orders of magnitude when compared to the yields obtained with the surface ionization mode of the source. As a result, high yields of long-lived Ni-isotopes were obtained. Separation efficiencies of 0.3 and 0.8% were obtained for Ni produced in uranium-carbide, produced from uranium-di-pthalocyanine, and Ta-foil targets, respectively, Ni was found to be released very slowly from the present target and ion source combination.

引用

收藏

页码：95 / 99

页数：5

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