A NEW COOLING TECHNIQUE FOR HEAVY-IONS IN A PENNING TRAP

被引：582

作者：

SAVARD, G

BECKER, S

BOLLEN, G

KLUGE, HJ

MOORE, RB

OTTO, T

SCHWEIKHARD, L

STOLZENBERG, H

WIESS, U

机构：

[1] MCGILL UNIV,FOSTER RADIAT LAB,MONTREAL H3A 2T5,QUEBEC,CANADA

[2] CERN,ISOLDE COLLABORAT,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS A | 1991年 / 158卷 / 05期

关键词：

D O I：

10.1016/0375-9601(91)91008-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new cooling technique for heavy ions stored in a Penning trap has been developed. The axial and cyclotron motions are cooled by buffer gas collisions. The outward radial diffusion caused by the buffer gas is counteracted by an azimuthal quadrupole rf field at the sum frequency of the magnetron and cyclotron motions. A mass selectivity of 500 in the cooling is achieved while the axial energy distribution is observed to be in equilibrium with the buffer ps temperature (T = 300 K).

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收藏

页码：247 / 252

页数：6

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