A 12 DETECTOR COINCIDENCE SPECTROMETER FOR ONLINE AND OFF-LINE MEASUREMENTS OF NUCLEAR G-FACTORS

被引：15

作者：

ALFTER, I

BODENSTEDT, E

HAMER, B

VANDENHOFF, J

KNICHEL, W

MUNNING, H

PIEL, S

SCHUTH, J

SAJOK, R

机构：

[1] Institut für Strahlen-, Kernphysik der Universität Bonn

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 321卷 / 03期

关键词：

D O I：

10.1016/0168-9002(92)90061-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A twelve detector gamma - gamma directional correlation setup is described which has been designed and constructed for high precision on-line and off-line IPAC measurements. A ring of twelve BaF2 detectors which may be replaced by Ge detectors is arranged around a superconducting magnet providing a maximum magnetic field of 4.5 T. In on-line experiments the magnetic field has the direction of the beam which passes through a central bore of the magnet. The data acquisition system stores directly the E(gamma1) - E(gamma2) coincidence matrices for all 66 two-detector combinations in two 8 Mbyte RAMs, one for each of the two field directions. This allows a very fast data evaluation with a small on-line computer. The apparatus got into operation one-and-a-halve years ago and revealed excellent properties.

引用

页码：506 / 520

页数：15

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