The Multichannel Spectrum Analyzer

The Multichannel Analyzer

The multichannel analyzer (MCA) is an important laboratory instrument which can measure distributions of input signals consisting of pulses. It operates in two different modes: pulse height analyzer (PHA) mode, and multichannel scaler (MCS) mode. In PHA mode, the input pulses are sorted into bins (channels) according to their amplitude, while in MCS mode they are sorted according to the time wh...

A multichannel continuous-flow analyzer.

A 10-channel analyzer is described with which sodium, potassium, chloride, carbon dioxide, calcium, phosphorus, total protein, albumin, albumin blank, and uric acid levels may be determined simultaneously. Operating at the rate of 60 specimens per hour, the instrument uses less than 1 ml. of serum for all 10 determinations. The results appear on 5 two-pen recorders. The report describes the ins...

A Very Low-Cost Portable Multichannel Analyzer

A very low-cost portable Multichannel Analyzer (MCA) built with off-the-shelf commercial components is presented. Built around an universal microcontroller based platform for portable instruments, previously developed in our group, this intelligent portable MCA is operated by multicell Li-ion batteries and has power and memory autonomy for several hours of spectra collecting. The MCA integrates...

Optical Complex Spectrum Analyzer

The Hycel-M multichannel analyzer--a model for evaluation.

We evaluated the Hycel-M Multichannel Analyzer on behalf of the British Department of Health and Social Security. The purpose of the evaluation was to determine the precision of the instrument over a prolonged period of time, to compare its results with those of well-tried laboratory procedures, and to determine how the instrument would perform under the rigors of routine analysis. In addition,...