Analyses and QA measures in the ISU Laboratory are performed in accordance with approved written procedures. These procedures are described briefly in the following sections.

Alpha and Beta Detection

Thin-window gas flow proportional counting systems are used to measure the overall (gross) alpha and beta radioactivity of water samples and air particulate filters ...

 

Gamma Detection

The analog signals generated by the detectors are passed to preamplifiers which enhance the signal-to-noise ratio and provide impedance matching before being passed to amplifiers ...

 

Standard Tritium Detection

Liquid scintillation counting is used to determine the quantity of tritium (³H) present in water. Calibration for tritium counting is accomplished using tritium solutions traceable to NIST ...

 

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Last modified: June 26, 2001