  In an experiment performed at the ISOLDE facility of CERN, the super-allowed
beta-decay branching ratio of 10C was determined with a high-precision
single-crystal germanium detector. In order to evaluate the contribution of the
pile-up of two 511 keV gamma quanta to one of the gamma-ray peaks of interest
at 1021.7 keV, data were not only taken with 10C, but also with a 19Ne beam.
The final result for the super-allowed decay branch is 1.4638(50)%, in
agreement with the average from literature.
