Low energy electron beam for time-of-fli
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P LimΓ£o Vieira; R.F.M Lobo
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Article
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1999
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Elsevier Science
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English
β 251 KB
A low energy electron gun was assembled in a crossed molecular beam apparatus in order to monitorize the eusive molecular beam density using the electron impact technique. Electrons were analised in both time-of-Β―ight and Faraday cup detectors. The electrons coming directly from the gun were clearly