Measurements of the half-life of 214Po and 218Rn using digital electronics
The half-lives of 214Po and 218Rn have been measured. The radionuclides were produced in the decay of a 230U source and the emitted alpha-particles were measured in nearly-2 pi geometry with an ion-implanted planar silicon detector. The data acquisition was performed with a digitizer operated in list mode, saving the energy and time of detection (10 ns precision timestamp) of each event. The half-lives were deduced from the time differences between the alpha-decays populating the nucleus of interest and those corresponding to its decay. Different methods were applied, based on delayed coincidence counting and time interval distribution analysis. The resulting half-lives are 33.75 (15) ms for 218Rn and 164.2 (6) µs for 214Po, both in agreement with some of the literature values, and obtained with higher precision in this work.
SULIMAN Gabriel;
POMME Stefaan;
MAROULI Maria;
VAN AMMEL Raf;
JOBBAGY Viktor;
PAEPEN Jan;
STROH Heiko;
APOSTOLIDIS Christos;
ABBAS Kamel;
MORGENSTERN Alfred;
2012-12-05
PERGAMON-ELSEVIER SCIENCE LTD
JRC65538
0969-8043,
https://publications.jrc.ec.europa.eu/repository/handle/JRC65538,
10.1016/j.apradiso.2012/02.095,
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