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Title: Correlated p-N pairs from 4He photodisintegration with tagged photons from 80 to 131 MeV
Author: Doran, Sean Michael
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 1992
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Results are presented for measurements of the photodisintegation of 4He using tagged photons in the energy range 80-131 MeV. In this energy region, the dominant photon absorption process is thought to be the quasideuteron mechanism of Levinger. The data are compared with the predictions of this model and with phase space calculations. Considerable agreement with the quasi-deuteron model is demonstrated. Two detector arrays were used in this measurement, one for the detection and identification of protons, and the other for the detection and identification of protons and neutrons. This allows separation of the 4He (gamma,pn) events from 4He (gamma,pp) events. Furthermore, the energy resolution is sufficiently good to enable separation of the 4He (gamma,pn)d and 4He (gamma,pn)pn decay channels, on the basis of their differing missing energies.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available