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Sputtering of uranium

Citation

Gregg, Ron (1977) Sputtering of uranium. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:07182014-082315611

Abstract

Sputtering yields for uranium metal under bombardment by 13 - 120 keV protons and by 20 - 120 keV He+ are presented. Angular distributions of the material sputtered by these ions are also given. Sputtering yields for 40 and 80 keV Ar+ were measured as well.

The technique employed to make these measurements was the detection of fission tracks in mica produced by ^(235)U sputtered onto collector foils which were subsequently exposed to a high fluence of thermal neutrons. The technique is extremely sensitive and allowed the measurement of sputtering yields less than 10^(-4) atoms per ion. It also made possible a detailed study of the emission of chunks from the uranium targets during sputtering. Mass distributions of chunks emitted during bombardment by 40 - 120 keV protons and by 80 keV argon are presented.

Comparisons are made between the experimental results and those predicted by the Sigmund theory of sputtering.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Applied Physics
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Applied Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Tombrello, Thomas A.
Thesis Committee:
  • Unknown, Unknown
Defense Date:13 May 1977
Record Number:CaltechTHESIS:07182014-082315611
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:07182014-082315611
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8558
Collection:CaltechTHESIS
Deposited By: John Wade
Deposited On:18 Jul 2014 16:04
Last Modified:18 Jul 2014 16:04

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