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http://hdl.handle.net/11375/13964
Title: | Thermal Neutron (n,α) Studies in the Rare Earth Region |
Authors: | Beg, Khalid |
Advisor: | Macfarlane, R. D. |
Department: | Chemistry |
Keywords: | Chemistry;Chemistry |
Publication Date: | Oct-1967 |
Abstract: | <p>Alpha decay from the thermal neutron capture states in Nd<sup>143</sup>, Sm<sup>149</sup>, Sm<sup>147</sup>, Gd<sup>155</sup> and Eu<sup>151</sup> has been studied. Precise measurements of the thermal neutron (n,α) effective reaction cross sections (σ) and the Q-values for various alpha transitions have been made. Decay schemes have been proposed and a comparison has been made in each case with those obtained by other workers. Experimental values for cross sections were compared with those calculated using the statistical model approach. From the Q-values and cross sections obtained, alpha emission reduced widths have been evaluated.</p> <p>Neutron transmission experiments were made to obtain information on the spins and parities of the capture states in the case of Sm<sup>149</sup>. The contribution of bound levels to the neutron capture cross section was confirmed for both Sm<sup>149</sup> and Nd<sup>143</sup><sup></sup>.</p> |
URI: | http://hdl.handle.net/11375/13964 |
Identifier: | opendissertations/8796 9876 5109054 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
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fulltext.pdf | 4.57 MB | Adobe PDF | View/Open |
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