NANOSECOND PULSE-RADIOLYSIS STUDIES IN CHINA

A home made nanosecond pulse radiolysis apparatus was built at Laborat ory of Radiation Chemistry, Academia Sinica in October 1990. The monit oring equipment is a kinetic spectrophotometer. The measurement of opt ical density as a function of time, absorption spectrum of transient s pecies and kinetic parameters can be obtained simultaneously. A synchr onization system used to harmonize the operation of Linac and monitori ng system is the key to control the pulse radiolysis apparatus. Some i mportant novel advances including direct confirmation and development of our previous proposal of ''mechanism of charge transfer protection and sensitization'' have been achieved based on a series of pulse radi olysis studies.