TY - JOUR
T1 - Muon spin resonance and pulse radiolysis studies of liquid CS2
AU - Azuma, Toshiyuki
AU - Washio, Masakazu
AU - Tabata, Yoneho
AU - Ito, Yasua
AU - Nishiyama, Kusuo
AU - Miyake, Yasuhiro
AU - Nagamine, Kanetada
N1 - Funding Information:
Acknowledgements--This work has been supported by the Grant-in-Aid for Special Project Research on Meson Science of Ministry of Education, Science and Culture of Japan. Thanks are also due to Professor T. Yamazaki for his continuing support and encouragements.
PY - 1989
Y1 - 1989
N2 - An extensive study of positive muon chemistry has been performed in order to clarify the mechanism of the large loss of the muon spin polarization in CS2. The main technique used in the experiments was 'muon spin resonance'. After a brief demonstration of the usefulness of the resonance method, its application to the study of both the diamagnetic muon and the muonium-substituted free radicals in CS2 are described. The results show an existence of muonium-substituted free radicals in CS2, but they were stable only in limited conditions. The diamagnetic muon fraction, which is only about 0.2 at first, was found to increase slowly with time. This kind of slow formation of muon state has been found for the first time by the resonance method in CS2. From the combination of the obtained results, we infer that the loss of the muon spin polarization is due to reactions of the muonium-substituted free radicals, for which aggregation effect of the substance plays an important role. Results of nanosecond pulse radiolysis of CS2 are also presented compared with the results of the muon chemistry.
AB - An extensive study of positive muon chemistry has been performed in order to clarify the mechanism of the large loss of the muon spin polarization in CS2. The main technique used in the experiments was 'muon spin resonance'. After a brief demonstration of the usefulness of the resonance method, its application to the study of both the diamagnetic muon and the muonium-substituted free radicals in CS2 are described. The results show an existence of muonium-substituted free radicals in CS2, but they were stable only in limited conditions. The diamagnetic muon fraction, which is only about 0.2 at first, was found to increase slowly with time. This kind of slow formation of muon state has been found for the first time by the resonance method in CS2. From the combination of the obtained results, we infer that the loss of the muon spin polarization is due to reactions of the muonium-substituted free radicals, for which aggregation effect of the substance plays an important role. Results of nanosecond pulse radiolysis of CS2 are also presented compared with the results of the muon chemistry.
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M3 - Conference article
AN - SCOPUS:0024901359
SN - 0969-806X
VL - 34
SP - 659
EP - 667
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
IS - 4
T2 - Proceedings of an International Symposium on Fast Excitation Processes
Y2 - 21 March 1988 through 25 March 1988
ER -