Measurement of the half-life of 68Ga

• The half-life of the positron-emitter radionuclide 68Ga was measured.
• Two measurement setups (ionization chamber and Ge detector) were used.
• Results agree with evaluated data but exhibit lower uncertainty.

The half-life of the positron-emitter 68Ga 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.