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^(12)C(α,γ)^(16)O reaction at low energies


Kremer, Richard M. (1987) ^(12)C(α,γ)^(16)O reaction at low energies. Dissertation (Ph.D.), California Institute of Technology.


Absolute total cross-sections for ground state, ^(12)C(α,γ_O)^(16)O and cascade, ^(12)C(α,γ_C)^(16)O, transitions were measured over the energy range 1.29 MeV to 3.29 MeV. γ-rays were detected with four large NaI(T1) crystals in close geometry around a ^4He gas target. Recoil ^(16)O ions were separated from the intense ^(12)C beam and detected by a multiwire proportional and gas ionization chambers in time-of-flight delayed coincidence with the γ-rays. The total cross-section at the peak of the E_(cm) = 2.4 MeV, J^π = 1^- resonance was found to be 42.6 ± 3.6 nb and the extrapolated S-factor at 300 keV was determined to be 40^(+40)_(-34) keV-barns.

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:Restricted to Caltech community only
Research Advisor(s):
  • Filippone, Bradley W.
Thesis Committee:
  • Unknown, Unknown
Defense Date:26 May 1987
Record Number:CaltechTHESIS:08102010-092901686
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5987
Deposited By: Julie Guan
Deposited On:10 Aug 2010 17:14
Last Modified:26 Dec 2012 04:29

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