Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 1994, Vol. 5 ›› Issue (2): 100

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A PHOTOEMISSIVE MONOENERGETIC ELECTRON SOURCE FOR CALIBRATING THE BETA— MAGNETIC SPECTROMETER

Chen Zhicai (陈志才), Sun Hancheng (孙汉城) and Mao Yajun (冒亚军)   

  1. China Institute of Atomic Energy, Bei ing 102413,China
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Chen Zhicai (陈志才), Sun Hancheng (孙汉城) and Mao Yajun (冒亚军). A PHOTOEMISSIVE MONOENERGETIC ELECTRON SOURCE FOR CALIBRATING THE BETA— MAGNETIC SPECTROMETER.Nuclear Science and Techniques, 1994, 5(2): 100

Abstract: A new kind of electron source, the photoemissive monoenergetic electron source has been invented for calibrating the beta-magnetic spectrometer. It produces electrons in the form of simulating a radioactive monoenergetic electron source and can be made in any shape and size according to the demands of experiments. In this paper, the principles and basic constructions of the photoemissive monoenergetic electron source are described, the results of calibrating our 21/2Π beta—magnetic spectrometer with a single strip arc shaped photoemissive monoenergetic electron source are listed, a new way for determining resolution function of experimental system in the research of neutrino rest mass has been posed and one of its actual applications is also given.

Key words: Photoemission, Monoenergetic electron sources, Beta- magnetic spectrometer, Resolution function, Neutrino rest mass