Different Detectors Comparison

Different energy dispersive detectors are available for spec-troscopic measurements of X-ray spectra, such as propor-tional counters (PC), PIN-diodes and silicon drift detectors (SDD). The physical principles of these detectors are very different. A PC uses a mixture of a noble gas with a quench gas that is ionized by an incident radiation. The electrons are accelerated in the electric field and can ionize other gas atoms resulting in an internal amplification. In this case the energy for generation of the primary signal is relatively high.

In solid state detectors (PIN, SDD), the incident radiation generates charge carriers which are collected by an elec-trical field. The energy to generate the primary signal is significantly lower than for a PC, i.e. a higher number of primary charge carriers can be generated. This reduces the statistical error and improves the energy resolution.

This report studies the analysis performance of the M1 MISTRAL when equipped with a PC or an SDD and compa-res it with theoretical values of a PIN-diode.

  • #301, Rajshree Plaza, LBS Marg,
    Ghatkopar (W), Mumbai 400086

  • Phone:
    +91 22 25005011/12

© Copyright 2015 Karat Meter, Legal Notes
Design by Dreamscape Media