The half-life of the positron-emitter (68)Ga has been measured by following the decay rate with two systems based on ionization chamber and Ge detectors. The decay rate was measured for periods of time up to 10 half-lives. The combination of the 6 results obtained with both systems gives a value of T1/2=67.845(18) min, in good agreement with recommended data and with an uncertainty lower than any other previously reported value.
Keywords: (68)Ga; Half-life; Nuclear medicine.
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