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A Study of the Reactions ⁹Be(p,α) and ⁹Be(p,d) at Low Energies


Sierk, Arnold John (1973) A Study of the Reactions ⁹Be(p,α) and ⁹Be(p,d) at Low Energies. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/276E-0C41.


Cross sections for the 9Be(p,d) and (p,α) reactions have been measured for proton lab energies of 30 to 700 KeV. Angular distributions were measured for energies of 100 to 600 KeV. Absolute normalization of the cross sections was done by measuring cross sections for Rutherford scattered alpha particles. The maximum cross sections observed at the 330 KeV Jπ = 1- resonance were (360±20) mb for (p,α) and (470±30) mb for (p,d). The value of Scm (E=0) for the combined cross sections was estimated to be (35-15+45) MeV-barn.

The reaction data were interpreted in terms of an R-matrix compound nucleus model. There were no obvious effects due to direct reactions. The low energy behavior of the cross sections was fitted by using three 10B resonance levels; a Jπ = 2+ level at -20 KeV (cm), a 1- level at 310 KeV and a 1+ level at 410 KeV.

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):
  • Tombrello, Thomas A.
Thesis Committee:
  • Unknown, Unknown
Defense Date:10 November 1972
Funding AgencyGrant Number
Hertz FoundationUNSPECIFIED
Record Number:CaltechTHESIS:09242018-114614556
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11196
Deposited On:24 Sep 2018 20:54
Last Modified:15 Jul 2024 23:38

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