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Updated: Jul 6, 2026

A Basic Positron Emission Tomography System Constructed to Locate a Radioactive Source in a Bi-dimensional Space
Published on: February 1, 2016
A calibration procedure for beta-gamma coincidence detector-systems using four radioxenon spikes
Boxue Liu1, Richard Britton1, Seokryung Yoon1
1CTBTO, P.O. Box 1200, 1400, Vienna, Austria.
Abstract:
The determination of activity concentrations of the CTBT-relevant radioxenon relies on a robust calibration method. A procedure is outlined using four radioxenon spikes for beta-gamma detector-systems with 4π geometry. Detection efficiencies of beta-gamma coincidences in the net count calculation method, including the interference matrix between radioxenon and radon, are determined by three measurement channels: beta singles, gamma singles and beta-gamma coincidences, without reference activity values.

