Browsing by Author "Ferenji, Getu"

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    The Measurement of Thermal Neutron Capture Cross Section in Antimony
    (Addis Ababa University, 2012-02) Ferenji, Getu
    The measurement of thermal neutron cross sections gives basic information about the internal structure of atomic nuclei and their structure. Measurement of Thermal Neutron cross-section of Sb -121 has been performed at the Addis Ababa University Nuclear physics Laboratory using the concept of neutron activation Analysis. Irradiations without Cadinium cover were performed and the neutron transmission through the cover was calculated. High resolution gamma ray spectrometry measurements was undertaken in order to check the consistency of the results. The thermal neutron cross section measured for Sb-121 using slow neutrons is ( 5.450.23b). The results are discussed and compared with previous Measurement. In general there is good agreement between the observed and calculated value of thermal neutron capture cross section. Keywords: Neutron sources, Neutron interaction, Thermal neutron cross section, Slowing down of Neutron, Neutron Activation analysis, HPGe