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Multiple‐Gap Magnetic Spectrograph for Charged‐Particle Studies

 

作者: H. A. Enge,   W. W. Buechner,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1963)
卷期: Volume 34, issue 2  

页码: 155-162

 

ISSN:0034-6748

 

年代: 1963

 

DOI:10.1063/1.1718292

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A spectrograph has been designed that simultaneously records broad‐range, charged‐particle spectra at twenty‐four different reaction angles, 7.5° apart, from 0 to 172.5°. At each angle, the spectrograph records a spectrum with a total energy range of about 2.3:1 and with a resolving power exceedingR=E/&Dgr;E=1000, where &Dgr;Eis the full width at half‐maximum of a peak. The recorders are seventy‐two 2×10 in. nuclear‐track plates, which are developed and scanned under a microscope after the exposures. When half‐millimeter strips across the nuclear‐track plates are scanned, the information contained on the nuclear‐track plates after one exposure corresponds to about 36 000 data points. A typical exposure time with about a 0.5‐&mgr;A beam is of the order of 2 to 3 h.

 

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