dc.contributor.advisor | Reece, W. Dan | |
dc.creator | Chen, Yong | |
dc.date.accessioned | 2010-01-14T23:57:41Z | |
dc.date.accessioned | 2010-01-16T00:19:55Z | |
dc.date.available | 2010-01-14T23:57:41Z | |
dc.date.available | 2010-01-16T00:19:55Z | |
dc.date.created | 2006-12 | |
dc.date.issued | 2009-05-15 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1134 | |
dc.description.abstract | The delayed neutron emission rates of U-235 and Pu-239 samples were measured
accurately from a thermal fission reaction. A Monte Carlo calculation using the Geant4
code was used to demonstrate the neutron energy independence of the detector used in the
counting station.
A set of highly purified actinide samples (U-235 and Pu-239) was irradiated in these
experiments by using the Texas A&M University Nuclear Science Center Reactor. A fast
pneumatic transfer system, an integrated computer control system, and a
graphite-moderated counting system were constructed to perform all these experiments.
The calculated values for the five-group U-235 delayed neutron parameters and the
six-group Pu-239 delayed neutron parameters were compared with the values
recommended by Keepin et al. (1957) and Waldo et al. (1981). These new values differ
slightly from literature values. The graphite-moderated counting station and the
computerized pneumatic system are now operational for further delayed neutron
measurement. | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.subject | delayed neutron | en |
dc.subject | emission rate | en |
dc.title | Delayed neutron emission measurements for U-235 and Pu-239 | en |
dc.type | Thesis | en |
thesis.degree.department | Nuclear Engineering | en |
thesis.degree.discipline | Health Physics | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Master of Science | en |
thesis.degree.level | Masters | en |
dc.contributor.committeeMember | Charlton, William. E | |
dc.contributor.committeeMember | Watson, Rand. L | |
dc.type.genre | thesis | en |
dc.type.material | text | en |
dc.format.digitalOrigin | born digital | en |