New Practice for Liquid Scintillation Counting Methods
1. Scope
1.1 This practice covers the liquid scintillation measurement of radioactivity. Liquid scintillation counting is the most sensitive and widely used technique for the detection and quantification of radioactivity. This measurement technique is applicable to all forms of nuclear decay emissions (alpha and beta particle, and gamma and X-ray emitting radionuclides). Liquid scintillation counting is an analytical technique which measures activity of radionuclides from the rate of light photons emitted by a scintillating matrix.
1.2 This method can be used for either absolute or relative determinations. For radioassay, data may be expressed in terms of disintegrations rates after calibration with an appropriate standard. General information on liquid scintillation counting has been published (1-6).
1.3 Include in this section the system of units to be used. Refer to the above ASTM Standards Units toolbar button for a dropdown menu of ASTM’s Form and Style Manual statements.
Keywords
text; Liquid Scintillation Counting
Rationale
Revision of sections of E181 addressing Liquid Scintillation Counting to be issued as a standalone standard.
