Magnesium Ion Source for High Intensity Mass Spectrograph

Author: Pi, Te Hsien

Year: 1944

Degree: Dissertation (Ph.D.)

Advisor: Smythe, William Ralph

Committee Member: Unknown, Unknown

Option: Physics

DOI: 10.7907/HA7K-HZ57

Abstract

Magnesium ions were produced by bombarding magnesium vapor by electrons emitted tram oxide coated cathodes. The ions were then focussed into a thin sheet by means of an electrostatic lens. This ion sheet was sent into the magnetic lens which focussed the sheet into a small spot where they were collected. The ion current obtained at the collector was 120 microamperes.

Files

• Pi_th_1944.pdf (application/pdf)