A SOURCE OF COLD MOLECULAR-IONS FOR COULOMB EXPLOSION IMAGING

被引：12

作者：

GRABER, T

ZAJFMAN, D

KANTER, EP

NAAMAN, R

VAGER, Z

ZABRANSKY, BJ

机构：

[1] UNIV ILLINOIS,DEPT PHYS,CHICAGO,IL 60680

[2] WEIZMANN INST SCI,DEPT NUCL PHYS,IL-76100 REHOVOT,ISRAEL

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1992年 / 63卷 / 07期

关键词：

D O I：

10.1063/1.1143766

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A specialized ion source for use in the high voltage terminal of an electrostatic accelerator has been developed to produce vibrationally cold beams of molecular ions. A pulsed valve is used to produce a supersonic expansion of the source gas which is ionized by electron impact near the beginning of the free expansion. Because of the harsh electromagnetic environment in the terminal, special care has been taken to protect the electronic components related to the ion source. The effect of vibrational cooling in the supersonic expansion is demonstrated using Coulomb explosion techniques with a He2+ beam.

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页码：3569 / 3574

页数：6

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