A Caltech Library Service

Magnesium Ion Source for High Intensity Mass Spectrograph


Pi, Te Hsien (1944) Magnesium Ion Source for High Intensity Mass Spectrograph. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/HA7K-HZ57.


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.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Physics)
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Smythe, William Ralph
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1944
Record Number:CaltechTHESIS:12052012-154742447
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7304
Deposited By: Benjamin Perez
Deposited On:06 Dec 2012 17:22
Last Modified:10 Nov 2023 19:36

Thesis Files

PDF - Final Version
See Usage Policy.


Repository Staff Only: item control page