Study of a novel transition radiation detector utilizing superconducting microspheres for measuring the energy of relativistic high energy charged particles

摘要

In want of a detector capable of measuring accurately the energy of relativistic high energy charged particles, a novel transition radiation detector (TRD) utilizing superheated superconducting microspheres of tin of 22-26 mum, 27-32 mum and 32-38 mum in diameter respectively has been constructed. For the purpose of enhancing the TR effect, the TRD is operated at similar to 100 mK. Test has been conducted in a high energy electron beam facility at the CERN PS in the energy range of 1-10 GeV showing an energy dependence of the TR X-ray photon produced and hence the value gamma = E / mc(2) of the charged particle. [References: 2]