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http://hdl.handle.net/11375/30061
Title: | PRECISION GAMMA RAY ENERGY MEASUREMENTS |
Authors: | Cox, Donald C. |
Advisor: | Johns, M.W. |
Department: | Physics |
Abstract: | A double focusing beta ray spectrometer has been constructed and tested in this laboratory. Previous work Included investigation of the field shape and tests of focusing, using the Th F line to determine the optimum baffle and counter dimensions. In this work, a low background coincidence geiger detector has been developed, and a flip coil- galvanometer arrangement has been installed which is capable of giving 0.1% accuracy on magnetic field measurements. Using these improvements, we have investigated the gamma ray spectrum of In, bringing to light two previously unreported gamma rays, and thus defining a new excited level in Cd . With a beta source of high specific activity, a search was made for the internal conversion lines due to these gamma rays. An accurate measurement of the beta end point has been obtained. |
URI: | http://hdl.handle.net/11375/30061 |
Appears in Collections: | Digitized Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Cox_C_Donald_1952Sept_MSC.pdf | 2.21 MB | Adobe PDF | View/Open |
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