Single-channel analyzer
The single-channel analyzer , also known as a differential discriminator, is an electronic component that generates an output signal if the amplitude of the input signal lies between two previously defined values.
effect
The effect of this unit is therefore to indicate whether the input signal is within a certain amplitude band (also known as the amplitude window). The amplitude of the output signal is independent of that of the input signal, so it is a logical or binary output signal.
Systems
There are different systems that are known as single-channel analyzers. These differ z. B. in whether the lower and the upper value of the amplitude window (LLD: lower-level discriminator and ULD: upper-level discriminator) can be set independently or whether only the window width can be changed while the lower value is fixed. Most commercially available SCAs offer the option to switch off the ULD. This turns the device into an integral discriminator that generates an output signal when the input signal exceeds a previously defined amplitude.
use
Single-channel analyzers are used in particle detectors , among other things . Radiations of different energies occur there, which indicate different types of particles. With the help of a single-channel analyzer, only those events (radiation quanta ) can be counted that fall within a certain energy window .
See also
swell
- Glenn F. Knoll: Radiation Detection and Measurement . 4th edition. John Wiley & Sons, Hoboken, New Jersey 2010, ISBN 978-0-470-13148-0 (English, limited preview in Google Book Search).