D.L. Knies, D. Elmore, Purdue University

Nuclear Instruments and Methods 92 (1994) 134-137

A gas ionization detection system was built for optimal identification of AMS radionuclides, in particular 10Be and 36Cl. For 36Cl, a combination of 1) the difference in arrival times for electrons at two anode plates and 2) a novel split anode plate has led to a reduction in misidentified 36S. A peak-stabilizing routine incorporated in the data acquisition system has allowed us to run at higher courting rates. Changing to propane gas has reduced random signal amplitude shifts.