A SYSTEM FOR CORRELATED FRAGMENT DETECTION IN DISSOCIATION EXPERIMENTS

被引：50

作者：

BECKER, J

BECKORD, K

WERNER, U

LUTZ, HO

机构：

[1] Fakultät für Physik, Universität Bielefeld, D-33501 Bielefeld 1

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 337卷 / 2-3期

关键词：

D O I：

10.1016/0168-9002(94)91110-X

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe a detector system for the study of the dissociation dynamics of small molecules, clusters or molecular ions. The system is based on a two-dimensional multiparticle detector which allows the position-sensitive and time-correlated detection of all fragments produced in one particular dissociation process. As a test example we discuss the double ionization and ensueing fragmentation of H-2 by fast H+ and He+ ions, in which case our detector allows an absolute measurement of the dissociation energy of the two correlated H+-fragments. The results are in excellent agreement with the prediction of a Franck-Condon calculation.

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收藏

页码：409 / 415

页数：7

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