A superconductive junction detector as an energy proportional counter Article uri icon

abstract

  • A model to describe the linear regime in a Superconducting Tunnel Junction detector has been developed. In the limit of low temperatures, the only effective processes which involve quasi-particles and phonons are the phonon scattering mechanisms and the phonon escape from the area of the detector. The response of the STJ is linear if τesc-1>;τph-1 for low energy phonons and τesc-1<τph-1 for high energy phonons. The estimate of the mean energy loss ε{lunate} by radiation per excess quasi-particle in the STJ is in agreement with previous determinations. A comparison with some experimental results taken from literature has been produced. © 1991.

publication date

  • 1991-01-01