The radiations of Selenium 75 and Antimony 124 were examined with a thin lens magnetic spectrometer at a resolution of 2.5% in momentum.
Selenium 75
The gamma ray and internal conversion spectra were obtained for Se⁷⁵ which decays by K-capture to As⁷⁵. Transitions were observed at the energies 66, 98, 121, 137, 198, 265, 280, 303, and 400 kev. Accurate K/L ratios were obtained for the 98 kev. and 137 kev. transitions. A decay scheme is proposed with tentative spin and parity assignments to several energy levels.
Antimony 124
The beta ray and internal conversion spectra of Sb¹²⁴ were examined. Five beta groups were observed with end-point energies 2.315, 1.58, 0.94, 0.60, and 0.35 mev. Conversion lines were observed for transitions of energies 604, 651, and 723 kev. Conversion coefficients were calculated on the basis of the decay scheme of Langer et al. All three transitions have conversion coefficients which would correspond to electric quadrupole radiation. / Science, Faculty of / Physics and Astronomy, Department of / Graduate
| Identifer | oai:union.ndltd.org:UBC/oai:circle.library.ubc.ca:2429/40512 |
| Date | January 1955 |
| Creators | McMahon, Garfield Walter |
| Publisher | University of British Columbia |
| Source Sets | University of British Columbia |
| Language | English |
| Detected Language | English |
| Type | Text, Thesis/Dissertation |
| Rights | For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. |
Page generated in 0.0025 seconds