Overview
The first multi-channel pulse amplitude analyzer is composed of mechanical principles, and later appeared in a number of multi-channel analyzer electronic circuit composed of the first to die until 1950 - after-digital converter constitute a multi-channel pulse amplitude analyzer, multi-channel pulse amplitude analyzer was developed rapidly and become a nuclear experimental techniques essential equipment.
modern multi-channel analyzer pulse amplitude spectrum in addition to obtaining a single parameter analysis means other than the pulse width, typically having a further experimental data acquired in a variety of ways other features, such as dual variable pulse height analysis sampling the amplitude of analytical measurements, slowly varying voltage waveform recording sampling slowly varying voltage measurement, the multi-type scaler data acquisition, measurement time spectrum and so forth. Thus, on the multi-channel pulse height analyzer for measuring only the nuclear spectrometry; aspect Mossbauer measurements (see Mossbauer spectroscopy), the measurement of the dynamic characteristics of a nuclear reactor, the analysis of biological signals and the like are wide range of applications.
multi-channel analyzer generally consist of analog - digital converter composed of several parts, a data memory, a display, a controller and the like. Acquiring spectral data may be displayed on a display in the form of digital spectrum curve or out, or the printer can quickly trace from the output device. Multi-channel pulse height analyzer with a microprocessor may process the raw acquired data, the final result output of the experiment.
principle and function
multi-channel pulse height analyzer is the main principle of the input analog signal by the ADC and DSP processing, a USB interface transmitting the signal amplitude distribution a computer terminal, a computer display terminal, storage or print out. Multi-channel pulse height analyzer technical indicators include: the number of channels, channel width, channel width error, track width stability, analytical error zero point, zero point stability analysis, differential linearity, integral linearity, dead time, and the maximum pulse count rate, etc. can be measured. The main functions are as follows:
● height divided by the signal 16384 (16k) order count;
● may timing analysis;
● analysis time can be set;
● analysis result can be printed.
practical
● environmental monitoring, pulse height analyzer may be utilized to analyze the number of particles suspended in the air, water (pure water) or oil (edible oil, lubricating Advanced oil), particulate matter and the like;
● in scientific research, may be used to determine the energy spectrum of the incident radiation using a pulse height analyzer;
● nuclear physics, such as X-ray fluorescence analyzer ;
● nuclear medicine, as measured osteoporosis;
● general high frequency oscillation and vibration measurements, pulse wave detection analyzer;
● fine chemical analysis of chromatographic analyzer, spectrum analyzer, surface composition analysis;