5. Activity metrology
If the detection efficiency can be calculated, and the uncertainty in this efficiency determined, liquid scintillation techniques can be used to calibrate radioactive solutions. The only primary method, i.e. not using a radioactive standard, is the triple-to-double coincidence ratio method. Another method using a tritium standard is the CIEMAT/NIST method.
5.1 RCTD triple-to-double coincidence ratio method
The triple T to double D coincidence ratio (TDCR) method
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Activity metrology
Checking liquid scintillation counters
Bibliography
Bibliography
Standards
Radioactivity measurement by liquid scintillation
- Nuclear instruments – Liquid scintillation counting systems – Function control. - CEI 61304 - 1994
- Water quality – Determining tritium activity by volume – Liquid scintillation counting method. - ISO 9698 -
- Measuring radioactivity – Determining the activity of β-emitting radionuclides – Liquid scintillation counting test method. - NF ISO 19361 - 2017 ...
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Teaching
The Institut National des Sciences et Techniques Nucléaires INSTN organizes several annual continuing education courses on liquid scintillation measurement techniques. http://www-instn.cea.fr
Learned societies and congresses
An international congress on the development of liquid scintillation techniques is...
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