Method for measuring electron drifting speed in gas with external electric field

In the nuclear radiation detection fields such as gas ionisation radiation detection and ion migration spectrum technology, the electron drifting speed is the key factor that decides a time response performance and has a decisive influence on the radiation measuring result. The study of the electron drifting speed in the gas is the prerequisite for improving the ionising radiation detector time response performance and detector optimization design, and can provide important meanings for promoting development of the gas electronics and the gas ionisation radiation detection technology. The method for measuring the electron drifting speed in the gas with the external electric field is based on a screen grid ionization chamber detector design; a collimator close to a cathode can emit heavy particles, parallel to a cathode plane, such as an [alpha] particle, thus measuring the electron drifting speeds in gases with different components under different electric field conditions, and providing effective paths for m