VHA Hewtett- Packard D2A Pulse Gen Cannister Ry oR 30K Ce Normaily Open Peck Reader + HE —_ Converter — O.003m0 ! Tape e Mewilett- Packard Counter Rec. Amo Playback ntlipe Amo . szxe. | osc Rec. Ame Figure 2.11 Detector 1 channel calibration setup. 33 MN “ oa Converter Frequency, kc 25 | w L ° 0.8 1,0 i) 2.0 2.3 Det! (SH), Input Charge (q), 10°8 Coulombs Figure 2.12 Detector 1 channel calibration curve. 29 3.9