Positron annihilation lineshape studies as a supplement method to lifetime measurement |
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| Authors: | Yasuo Ito Sohei Okada Yukio Arai Yoneho Tabata |
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| Affiliation: | Department of Nuclear Engineering, Faculty of Engineering, University of Tokyo, Tokyo Japan |
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| Abstract: | We studied positron annihilation lineshapes by a Ge(Li) γ-ray spectrometer for CCl4 solution in benzene and two monomer crystals which are polymerized by γ-ray irridation. From the lineshapes we evaluated the para-positronium intensity, and the results agree well with those of lifetime measurements in the cases of CCl4 solutions in benzene and solid acrylamide. But in solid dimethylitaconate the results from the two different methods have not agreed. |
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