Signal/noise ratio optimized in gamma ray measurements
Abstract
The best results in the determination of gamma ray energy are currently obtained with the aid of detectors which utilize large-volume germanium or silicon crystals. Electron-hole pairs produced by a gamma quantum can be detected in the form of a displacement current. The values of the observed current which correspond to a certain gamma quantum show a certain spread which is characterized by the Fano factor. The processing of the detector data is considered and an investigation is conducted concerning the causes of electronic noise observed in the measurements and the effects of this noise. An approach is discussed for minimizing the noise effects by means of a signal filtering technique.
- Publication:
-
Elektronika
- Pub Date:
- November 1976
- Bibcode:
- 1976Elek...25..140D
- Keywords:
-
- Gamma Rays;
- Nuclear Radiation Spectroscopy;
- Radiation Measurement;
- Signal To Noise Ratios;
- Silicon Radiation Detectors;
- Electronic Filters;
- Equivalent Circuits;
- Germanium;
- Holes (Electron Deficiencies);
- Noise Reduction;
- Optimization;
- Shot Noise;
- Signal Detectors;
- Instrumentation and Photography