Author/Authors :
Hwang، نويسنده , , Han Yull and Soon Park، نويسنده , , Tae and Jae Oh، نويسنده , , Pil and Kie Lee، نويسنده , , Min and Man Lee، نويسنده , , Jong، نويسنده ,
Abstract :
A multi-channel time-scaling (MCTS) technique has been applied for an absolute standardization of a 57Co solution using a 4π (e−, X) −γ coincidence counting method. Four radioactive samples were prepared and the nominal activities observed in the proportional counter were from 700 to 1400 s−1. The true coincidence rates together with the corresponding electron capture detection efficiencies can be obtained experimentally. The results are compared with those calculated from mathematical formulae.
