The construction of a Dempster type mass spectrometer, its use in the measurement of the difussion rates of certain alkali metals in tungsten
Willard S. Boyle (Author), H. G. I. Watson (Degree supervisor)
"Details concerning the design and performance of a conventional l80℗ʻ mass spectrometer are given. The operation of a new type of high frequency positive ion source is discussed and its characteristics are compared with two conventional ion sources, the hot filament and electron-impaction source. Observations on the decay of positive ion emission from heated tungsten filaments have been interpreted in terms of a diffusion process. Analysis of these observations has given values for the diffusion constants of potassium and sodium in tungsten."-- Author's abstract
Thesis, Dissertation, English, 1950
McGill University Libraries, [Montreal], 1950