Pulser Tests of Ionization Chambers via the Cathode This test "should" be useful to test the electrical contact between the Anodes and the pre-amplifiers. 1. The "selecteur" should be set in "Mode Physique" 2. The pulser of Ring 2-3 Ionization is set at -200mV 3. The pulser is triggered by a NIM module (Saclay GSR) at 50Hz 4. The pulser of the tested channels should be "masked" via the CEC interface. Example : The results of ChIo 8-12 are as follows (23-April-1998, with 27mbar of C3F8, see INDRA book 9 - page 91) Module 8-01 8-03 8-05 8-07 8-09 8-11 8-13 8-15 8-17 8-19 8-21 8-23 Pulser 450 2053 460 2010 547 2150 2184 471 1638 647 >4000 2905 Module 10-01 10-03 10-05 10-07 10-09 10-11 10-13 10-15 10-17 10-19 10-21 10-23 Pulser 481 865 484 940 506 1160 1130 495 905 487 3193 2923 Module 12-01 12-03 12-05 12-07 12-09 12-11 12-13 12-15 12-17 12-19 12-21 12-23 Pulser 591 555 582 584 430 342 390 460 382 449 2791 3112 Values without gas are not significantly changed.