Magister Scientiae - MSc / The inclusive double di®erential cross sections of 3He, 4He, and 6He par-
ticles produced from the interaction of 12C with 93Nb at 400 MeV incident
energy were extracted from the prescaled singles spectra which were mea-
sured in conjunction with the correlation between 8Be fragments and ® par-
ticles. A further aim of this project was to test the detector e±ciencies and
energy calibrations by comparing the alpha and 8Be prescaled singles data
with existing inclusive cross sections of the same reaction. The absolute cross
sections of 3He and 6He fragments have been extracted based on the absolute
normalization of the alpha particle spectra. A study of the inclusive spectra
of 3He and 6He suggest similar features to those seen in the alpha particle
spectra. These features are described by the projectile break-up and nucleon
coalescence mechanisms. A theoretical model which takes both these mech-
anisms into account was applied to describe 3He and 6He fragments. The
model is able to reproduce reasonably well the inclusive energy spectra of
the 3He and 6He fragments. These results are found to be consistent with
previous studies of the emission of intermediate mass fragments. / South Africa
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/1903 |
| Date | January 2005 |
| Creators | Mudau, Lufuno Julia |
| Contributors | Lindsay, R, Dept. of Physics, Faculty of Science |
| Publisher | University of the Western Cape |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Rights | University of the Western Cape |
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