OPA TEST

17 February 2006 

General info: 60.43 MeV, Run number 6, target ID 1, dose 100 Gray.

SCAN test 

** ACCESS change to Channel 1

23:25 OPA 0 Gray CH1 "initial scan"                         end of scan ~23:29

Continuous test - Start Current: 1mA, Stop Current 31pA, Internal points: 29

23:32 Run 6 - OPA 0-100 Gray 

23:39 OPA 100 Gray CH1 SCAN - 31pA ~5.29 sec (37.8)         end of scan 23:43

23:52 Run 7 - OPA 100-200 Gray ... no count arrived during irradiation.

23:55 OPA 200 Gray CH1 SCAN - 31pA ~5.88sec (34pA)          end of scan 00:00

00:01 Run 8 - OPA 200-300 Gray ... change from 59 to 49 Hz when irradiation. 

00:07 OPA 300 Gray CH1 SCAN - 31pA ~8.7sec (22.9pA)         end of scan 00:12

** Start saving "Data flow" data 

00:14 Run 9 - OPA 300-400 Gray ... change from 58 to 50 Hz when irradiation. 

00:19 OPA 400 Gray CH1 SCAN - 31pA ~ 12.6sec (15.7pA)       end of scan 00:23

00:27 Run 10 - OPA 400-500 Gray ... change from 58 to 51 Hz when irradiation. 

00:33 OPA 500 Gray CH1 SCAN - 31pA ~ 16.95sec (11.79pA)     end of scan 00:39

** ACCESS change to Channel 3

00:48 OPA 0 Gray CH3 "initial scan"                         end of scan 00:52

00:55 Run 11 - OPA 0-100 Gray ... change from 55 to 36 Hz when irradiation. 

01:00 OPA 100 Gray CH3 SCAN - 31pA ~ 6.66sec (30.03pA)      end of scan 01:04

** CHANGE DOSE to 200 Gray

01:06 Run 12 - OPA 100-300 Gray ... change from 55 to 42.8 (recovered to 46) Hz when irradiation. 

01:13 OPA 300 Gray CH3 SCAN - 31pA ~ 21.7sec (9.2pA)        end of scan 01:27

01:28 Run 13 - OPA 300-500 Gray ... change from 54.8 to 46.9  (recovered to 48) Hz when irradiation. *** the current source was disturbed by accident @time 1:34:35.

01:37 OPA 500 Gray CH3 SCAN - 31pA ~ ??sec (??pA maybe negative)     end of scan 01:51 (forced) 

** ACCESS change to Channel 5

01:53 OPA 0 Gray CH5 "initial scan" - 1.43sec               end of scan 01:57

** CHANGE DOSE to 500 Gray

02:01 Run 14 - OPA 0-500 Gray ... change from 57.4 to 40 (recovered to 52) Hz when irradiation. 

02:14 OPA 500 Gray CH5 SCAN - 31pA ~ 1.86sec (107.5pA)       end of scan 02:19

02:21 Run 15 - OPA 500-1000 Gray ... change from 57.4 to 51.5 (recovered to 53.5) Hz when irradiation. 

02:35 OPA 1000 Gray CH5 SCAN - 31pA ~ 3.26sec (61.5pA)     end of scan