Method for determining a background count rate in liquid scintillation counting
AssigneeHidex Oy
InventorsPetri Aronkyto, Eveliina Arponen, Ville Haaslahti, Risto Juvonen, Timo Oikari
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Abstract
The present invention provides a method for determining a background count rate in liquid scintillation counting. The method comprises measuring an external standard spectrum (201, 202) of a sample, determining, from the external standard spectrum, an external standard count rate within an energy window (203), determining, based on the external standard count rate within the energy window, a background reference parameter, and determining, based on the background reference parameter, the background count rate from a background reference curve (301).
Claims11
A method for determining a background count rate in liquid scintillation counting, comprising:
- measuring an external standard spectrum of a sample placed in direct contact with a liquid scintillation medium, wherein the external standard spectrum represents an external standard count rate as a function of energy, thus allowing accounting for both color and chemical quench;
- determining, from the external standard spectrum, the external standard count rate within an energy window;
- determining, from the external standard spectrum, an external standard quench parameter;
- determining, based on the external standard count rate within the energy window and the external standard quench parameter, a background reference parameter;
- and
- determining, based on the background reference parameter, the background count rate from a background reference curve.
Dependencies are inferred from the claim text.