J. Phys. IV France 03 (1993) C4-143-C4-145
Application of age-momentum correlation measurements for studies of the formation of positronium and its reactions in liquidsA. UEDONO1, R. SUZUKI2 and S. TANIGAWA1
1 Institute of Materials Science, University of Tsukuba, Ibaraki 305, Japan
2 Electrotechnical Laboratory, 1-1-4, Umezono, Tsukuba, Ibaraki 305, Japan
The age-momentum correlation measurements were applied to the study of annihilation characteristics of positrons and positronium (Ps) in benzene, carbontetrachloride and those mixtures. The observed lifetime spectra and Doppler broadening profiles were decomposed into two-components. The inhibition of the Ps formation by carbontetrachloride was observed in a momentum dependence of the lifetime and in a time dependence of the S parameter.
© EDP Sciences 1993