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A Precision Measurement of the Wavelengths of Gamma and X-Radiation Following Decay of Iridium 192 and Tungsten 187, by Means of the Focusing Crystal Diffraction Spectrometer

Citation

Muller, David Eugene (1951) A Precision Measurement of the Wavelengths of Gamma and X-Radiation Following Decay of Iridium 192 and Tungsten 187, by Means of the Focusing Crystal Diffraction Spectrometer. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/SB6A-0Z19. https://resolver.caltech.edu/CaltechTHESIS:10022017-160139639

Abstract

Precision determinations of gamma ray and x-ray wavelengths in the spectra following decay of iridium 192 and tungsten 187 are recorded. Measurements of these wavelengths were made with the focusing crystal diffraction spectrometer.

Development of a scintillation counter for use as a gamma ray detector in the spectrometer is described.

The precision of measurements with spectrometer is analyzed; particular attention being paid to errors resulting from statistical variations in counting rate. Linearity of the instrument is studied by comparing measurements obtained with first, second and third order reflections in the crystal.

Gamma ray energies are combined so as to form decay schemes for iridium 192 and tungsten 187.

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):
  • DuMond, Jesse William Monroe
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1951
Funders:
Funding AgencyGrant Number
Office of Naval ResearchUNSPECIFIED
Atomic Energy CommissionUNSPECIFIED
Record Number:CaltechTHESIS:10022017-160139639
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:10022017-160139639
DOI:10.7907/SB6A-0Z19
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10476
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:03 Oct 2017 17:47
Last Modified:21 Dec 2019 04:57

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