''The Microball'' - Design, instrumentation and response characteristics of a 4 pi-multidetector exit channel-selection device for spectroscopic and reaction mechanism studies with Gammasphere

被引：265

作者：

Sarantites, D ^{[1
]}

Hua, PF ^{[1
]}

Devlin, M ^{[1
]}

Sobotka, LG ^{[1
]}

Elson, J ^{[1
]}

Hood, JT ^{[1
]}

LaFosse, DR ^{[1
]}

Sarantites, JE ^{[1
]}

Maier, MR ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DIV ENGN,LAWRENCE BERKELEY NATL LAB,BERKELEY,CA 94720

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1996年 / 381卷 / 2-3期

关键词：

D O I：

10.1016/S0168-9002(96)00785-1

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A 4 pi multidetector light-charged particle and light fragment detection spectrometer is described. It consists of 95 CsI(T1) a scintillators closely packed to cover the angular range 4.0 degrees-172 degrees, arranged in 9 rings with increasing forward segmentation. The device is optimally designed to be used in conjunction with Gammasphere. The scintillator light is collected by silicon photodiodes that provide high quantum efficiency and minimal mass. The signals are processed through a charge sensitive preamplifier followed by a slow shaper. Particle identification for H-1,H-2,H-3, He-3,He-4 ions and Li, Be and B ions is accomplished by pulse shape discrimination. The geometry, construction, energy calibration, gain stability, associated integrated electronics and the data acquisition system are discussed. The capabilities of this spectrometer as a channel selecting device in conjunction with Gammasphere are discussed. A second version of the device with thicker scintillators, that can stop more energetic charged particles and is useful for reaction mechanism studies, is also described.

引用

页码：418 / 432

页数：15

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