Coincidence method applied to ion beam measurement

Stanley Fultz, M. L. Pool
naca-tn-2627
Feb 1952


A coincidence Geiger counter system was constructed for the absolute measurement of the activity of radioactive substances made in a cyclotron. The average beam current in the cyclotron can be calculated from the number of disintegrations per second observed, the half-life of the radioactive substance, and the reaction cross section.

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