首页   按字顺浏览 期刊浏览 卷期浏览 Use of Oxide‐Coated Cathodes in High Current Electron Accelerators
Use of Oxide‐Coated Cathodes in High Current Electron Accelerators

 

作者: G. Davidson,   S. Ozaki,   R. Weinstein,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1960)
卷期: Volume 31, issue 1  

页码: 31-32

 

ISSN:0034-6748

 

年代: 1960

 

DOI:10.1063/1.1716785

 

出版商: AIP

 

数据来源: AIP

 

摘要:

An investigation has been made of the possibility of using an oxide‐coated cathode as an electron source for the M.I.T. 320‐Mev electron synchrotron. A button cathode originally designed by Sperry Gyroscope Company was redesigned slightly to meet our specifications. With this new cathode, we have obtained an average lifetime of 330 hrs, operated at peak‐pulsed current of 200 ma in vacuums as poor as about 10−5mm Hg. This represents a factor of about 20 improvement in lifetime‐current product over directly heated cathodes.

 

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