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A study of the O^(17)(p, α)N^(14) reaction

Citation

Brown, Ronald E. (1962) A study of the O^(17)(p, α)N^(14) reaction. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:08012011-114449322

Abstract

An experimental measurement of the absolute cross section for the O^(17)(p, α)N^(14) reaction has been carried out in the energy range from 490- to 1580-kev proton bombarding energy at a laboratory angle of 150°. Resonances were observed at bombarding energies of 518, 672, 747, 825, 927, 1096, 1101, 1247, 1274, and 1335 kev. Other level parameters were assigned where possible. The 747-kev resonance corresponds to a level in F^(18) at 6302-kev excitation which does not appear to have been previously reported.

A calculation of the ratio O^(17)/O^(16) formed at equilibrium at various temperatures in the CNO-cycle in stars is made, and it is concluded that the terrestrial material which has been processed in the CNO-cycle underwent this processing at a temperature of about 17 x 10^6 °K.

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):
  • Fowler, William A.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1962
Record Number:CaltechTHESIS:08012011-114449322
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:08012011-114449322
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6560
Collection:CaltechTHESIS
Deposited By: Tony Diaz
Deposited On:19 Aug 2011 23:45
Last Modified:26 Dec 2012 04:37

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