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Experimental Absolute f-Values for Lines of Ni, Co, Au, and Ag


Lawrence, George Melvin (1963) Experimental Absolute f-Values for Lines of Ni, Co, Au, and Ag. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/2Z34-KM92.


Absolute f-values are determined for strong lines of Ni, Co, Au, and Ag by the atomic beam absorption method of Bell, Davis, King, and Routly. The equivalent widths of the absorption lines are measured photoelectrically and the density of absorbing atoms in the beam is determined from the beam geometry, kinetic theory, and a microbalance measurement of the atomic beam flux. A comparison is made to existing absolute f-values and a fit is made to relative f-values in the literature.

Evidence is presented that the .1-.4 ev states of cobalt are underpopulated in the atomic beam.

A description of the automatic microbalance, the photoelectric scanning system, and an ionization gauge used to monitor the atomic beam is given.

A review of the experimental analysis is given for the purpose of illuminating sources of error and of defining the experimental quantities.

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):
  • King, Robert Burnett
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1963
Record Number:CaltechTHESIS:04242012-112208657
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6963
Deposited On:24 Apr 2012 20:08
Last Modified:04 Jan 2024 19:06

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