The N¹⁵ + H¹ Reactions

Citation

Schardt, Alois Wolfgang (1951) The N¹⁵ + H¹ Reactions. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/6hpc-ye30. https://resolver.caltech.edu/CaltechTHESIS:07232025-195535258

Abstract

The excitation curve of the reactions (1) N¹⁵(p,α)C¹², (2) N¹⁵(p,α')C^12*, (3) N¹⁵(p,γ)O¹⁶ has been measured from 0.2 to 1.6 Mev. The thick target yield of reaction (1) was also measured at 100 kev. A special proportional counter was constructed for this purpose. Approximate theoretical and empirical expressions for some characteristics of proportional counters are given.

Cross sections and nuclear widths without barrier have been calculated for all resonances found. Using intensity arguments, an assignment of parity and total angular momentum is proposed for some levels in O¹⁶ and C¹⁷. As these reactions are part of Bethe's carbon cycle in stellar energy production, the cross sections have been extrapolated to stellar energies

Item Type:	Thesis (Dissertation (Ph.D.))
Subject Keywords:	(Physics and Mathematics)
Degree Grantor:	California Institute of Technology
Division:	Physics, Mathematics and Astronomy
Major Option:	Physics
Minor Option:	Mathematics
Thesis Availability:	Public (worldwide access)
Research Advisor(s):	Lauritsen, Charles Christian (advisor) Fowler, William A. (advisor)
Thesis Committee:	Unknown, Unknown
Defense Date:	1 January 1951
Record Number:	CaltechTHESIS:07232025-195535258
Persistent URL:	https://resolver.caltech.edu/CaltechTHESIS:07232025-195535258
DOI:	10.7907/6hpc-ye30
Default Usage Policy:	No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:	17551
Collection:	CaltechTHESIS
Deposited By:	Benjamin Perez
Deposited On:	25 Jul 2025 18:30
Last Modified:	25 Jul 2025 18:51

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