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The effects of atomic electrons on nuclear radiation

Karzas, William J (1955) The effects of atomic electrons on nuclear radiation. Dissertation (Ph.D.), California Institute of Technology.


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The effects of the atomic electrons on nuclear gamma emission are considered. It is found that the electrons, excited by the nuclear electrostatic field, can emit gamma rays coherently with the nucleus and thus add to the observed intensity of radiation. The correction is computed for K electrons, for electric dipole and quadrupole radiation, and is found to be small, of the order of a few per cent, for energies equal to the K binding energy. It drops rapidly with increasing energy, varying inversely as the square of the gamma ray energy. The Z-dependence of the effect is essentially Z[superscript negative 1]. For gamma ray energies corresponding to electron transitions between bound levels large resonances may occur, but they are of narrow width and their observation would be fortuitous.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Major Option:Physics
Thesis Committee:
  • Christy, R.F. (chair)
Defense Date:1 January 1955
Record Number:etd-01072004-095620
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45
Deposited By: Imported from ETD-db
Deposited On:08 Jan 2004
Last Modified:25 Dec 2012 14:57

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