Efficiency of vacuum cleaning by an electron beam in the prototype of electron-cooling device

A vacuum chamber of the electron-cooling device prototype was effectively cleaned by an electron beam. The outgassing rate of the vacuum chamber was decreased to values of order 10 −15 mbar l/s cm 2, and the coefficient of electron-induced desorption was lower than 10 −5 molecule/electron. In the ab...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1998, Vol.404 (2), p.185-189
Main Authors: Sharapa, A.N., Shemyakin, A.V.
Format: Article
Language:English
Subjects:
Electron induced desorption
Electron-cooling device
Vacuum cleaning procedure
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Summary:A vacuum chamber of the electron-cooling device prototype was effectively cleaned by an electron beam. The outgassing rate of the vacuum chamber was decreased to values of order 10 −15 mbar l/s cm 2, and the coefficient of electron-induced desorption was lower than 10 −5 molecule/electron. In the absence of vacuum pumps a vacuum better than 10 −10 mbar was reached at a stationary current up to 2 A.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(97)01090-5