CHARACTERIZATION OF IRRADIATION CHANNELS OF THE GHARR-1 MINATURE NEUTRON SOURCE REACTOR

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dc.contributor.authorAHMED, YUSUF AMINU
dc.date.accessioned2014-03-04T13:55:27Z
dc.date.available2014-03-04T13:55:27Z
dc.date.issued2004-06
dc.descriptionA Thesis submitted to the Postgraduate School, Ahmadu Bello University, Zaria In partial fulfillment of the requirements for the award of the degree Master of Science (Physics) Department of Physics, Ahmadu Bello University, Zaria, Nigeria.en_US
dc.description.abstractDetermination of reactor-based essential parameters in activation analysis (neutron spectra shape-factor  and the thermal to epithermal flux ratio f) for inner channel (No. 5) and outer channels (No. 7) of the GHAna Research Reactor-1 (GHARR- 1) a Miniature Neutron Source Reactor (MNSR) was undertaken in an effort to characterize the channels for the application of k0-standardization in Neutron Activation Analysis with the reactor Measurements were carried out according to the Hogdahl flux convention using cadmium ratio method. Specific activities of Gold and Zirconium monitors irradiated together with and without cadmium cover under the same neutron flux were used to obtain cadmium ratios. The thermal to epithermal flux ratio f of the reactor were measured and found to be 17.28 for the inner channel (No. 5) and 40.38 for the outer channel (No.7) while the epithermal flux-shaping factors  for these channels were obtained as –0.107  0.0001 and –0.173  0.0001 respectively. The -values were obtained by iteration method using in-house computer programs (Q-Basic and C++) developed for this work. The results obtained compared favorably well with the previously determined ones by Akaho and Nyarko 2002 for inner channel No. 1 (f = 18.8 and  = - 0.104) and outer channel No. 6 (f = 49.0 and  = - 0.0261) of the same reactor.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3216
dc.language.isoenen_US
dc.subjectCHARACTERIZATION,en_US
dc.subjectIRRADIATION,en_US
dc.subjectCHANNELS,en_US
dc.subjectGHARR-1,en_US
dc.subjectMINATURE,en_US
dc.subjectNEUTRON,en_US
dc.subjectSOURCE,en_US
dc.subjectREACTORen_US
dc.titleCHARACTERIZATION OF IRRADIATION CHANNELS OF THE GHARR-1 MINATURE NEUTRON SOURCE REACTORen_US
dc.typeThesisen_US
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