QUSB Test 18 February 2006 General info: 60.43 MeV, Run number 22, target ID 1, dose 500 Gray. CID 002 - Channel 8 not working + some Status blinking (prob. bad soldering). DAC Values 1 17 2 37 3 26 4 16 5 15 6 15 7 14 8 48* *** Run 22 - DAC test - file: PIF2006_02_18h05m53s45.flw Start 05:41 End 05:53 (USB file continued recording) 06:03 @ Channel 1 20pA ... 06:08 @ Channel 1 100pA 06:14 End of recording *** Run 23 - Analogue Test - file: PIF2006_02_18h06m41s07.flw settings 1000 & 100MOhm = 1nA Start 06:26 pause 06:28 @ 100 Gray Start 06:29 Pause 06:31 @ 187 Gray --- Error in the Display program after a switch OFF of the solder station. Start 06:32 @ 350 2 channels gone down (5-6) @ 400 4 channels gone down (3-4-7) @ 500 2 channels remained (1-2) End 06:40 ------------------------------------------------------------------------------------------------------ 18 February 2006 ------------------------------------------------------------------------------------------------------ **** Next Day *** ERROR SEARCH (no beam) (17:15) IC19 ref. Voltage was DEAD (output voltage 5V instead of 2.5V) After replacing that component the card started working properly. One thing noticed was the possibility to set the 200 counts with 1mA. This card (002) did not allow this earlier. (17:48) IC3 LT1490 Amplifier; the output voltage was oscillating. This was giving the problem with the blinking statuses. Replaced with a TL072 (the standard) (17:57) IC18 LT1490 Amplifier; the output voltage was also oscillating. Replaced also with a TL072 (the standard) (18:58) Found short circuit in the FPGA's input lines Correction of the short-circuit has recovered Channel 8 and now it is working. Probably this card will be re-irradiated later... ------------------------------------------------------------------------------------------------------- 19 February 2006 ------------------------------------------------------------------------------------------------------- ****** Irradiation *********** Analogue part - Card CFC - CID/002 (irradiated and repaired card) (08:59) Setup of instruments. no collimators - the beam is directed on the analogue parts. one of the fibres coming out from the GOH are degrated. the current source from the testing-card is not working Current source settings 850 & 100MOhm reset GOH received which is adding 100pA all channel 10nA input current system fully working.. General info: 60.43 MeV, Run number 01, target ID 1, dose 100 Gray. file: analogue test 500-1000 gray Beam info: PIF2006_02_19h08m58s21.dat -------------------------------------------------------------- ** Run 01 - file: PIF2006_02_19h09m22s17.flw lost two channels 5-6 ** Run 02 - file: PIF2006_02_19h09m26s15.flw Lost additionally channels 3-4 @ 160 Gray then Channels 1-2 lost @ 200 Gray ** ACCESS ** Reset of the CFC card Set the potensiometer lower and removed the GOH-reset the voltage reference was 3.4V Availiable Channels 1-2-7-8 Digital Part - Card CFC - CID/002 Collimator in the analogue part. Current source Settings: 850 & 100KOhm ** Run 03 - file: PIF2006_02_19h10m03s56.flw took some pictures of the eye diagrams ** Run 04 - file: PIF2006_02_19h10m06s58.flw 100..200 Gray, nothing happened ** Run 05 - file: PIF2006_02_19h10m15s35.flw 200 .. 300 Gray OK ** Run 06 - file: PIF2006_02_19h10m18s23.flw 300..400 Gray chA, chB 1 error at 350 Gray ** Run 07 - file: PIF2006_02_19h10m21s12.flw 400..500 OK ** Run 08 - file: PIF2006_02_19h11m11s10.flw 500..600 Gray and no errors! 10:22 beam line closed ** ACCESS ** ========CARD No 5 ============================= =======test of the comparator CH1, CH2 ======= current settings 850, 10 Mohm Cu collimator 10 mm errors on CH B ** Run 09 - file: CFC Card CID/005 Comparator channel-2 11:06 start 0..100 Gray ** Run 10 - file: PIF2006_02_19h11m14s41.flw 100..200 Gray ** Run 11 - file: 200..300 ** Run 12 - file: 300..400 ** Run 13 - file: 400..500 11:22 beam line closed ** ACCESS ** CFC Card CID/005 one-shot channel 1-2 ** Run 14 - file:PIF2006_02_19h11m35s16.flw 0..100 (11:30) nothing special observed ** Run 15 - file: PIF2006_02_19h11m46s05.flw (11:36) Setting changed to 400 Gray. (11:43) Channel 1-2 has died @ 220 Gray (11:45) ended run @ 290 Gray ** ACCESS ** Switched off-on the power suply of the CFC the one-shot seems to have recovered New current source settings 850 & 10 KOhm CFC Card CID/005 one-shot channel 3-4 new setting - Dose: 500 Gray ** Run 16 - file: PIF2006_02_19h12m36s35.flw (12:35) Channels 3-4 went down @ 312 Gray (12:36) ended run @ 333 seems to have recovered immediatelly or there was a problem in the way of displaying ** Run 17 - file: PIF2006_02_19h12m48s44.flw swapped to frames (12:45) went down @ 35 Gray (12:45) pause @ 48 (12:47) ended run without any action. ** ACCESS ** Reset of the CFC card (12:58) Channel 3-4 recovered (13:06) Changed collimator to see Channel 5-6 Current Settings: 200 & 1kOhm = 80uA ** Run 18 file: PIF2006_02_19h13m49s00.flw after 100 gray CH 5-6 increased ~2 counts and continue to increase slowly. (13:16) Ch 5-6 went down @ 320 Gray (13:16) pause @ 336 Gray (13:20) recovered Ch5 (only) (13:25) recovered Ch6 when ext.Current source was added to this channel. (13:28) Continue irradiation (13:29) went down @ 368 Gray (13:30) paused @ 376 Gray (13:35) Channel 5 recovered. (13:44) beam resume (13:44) down @ 405 Gray (13:44) ended run @ 409 Gray ** ACCESS ** New card CFC Card CID/001 2 x one-shot changed for Ch 1-2 & 3-4 In the reference voltage circuit some resistors have been changed. All working and no errors except Channel 4. Test analogue part / no collimation used Current Settings: 850 & 1kOhm Dose: 500 Gray ** Run 19 - file: PIF2006_02_19h14m40s44.flw (14:28) beginning of run (14:29) Strange behaviour @ 90 Gray - some counts have been seen; then returned to normal. (14:32) Strange behaviour (again) @ 240 Gray (14:33) Strange behaviour Ch 8 & Ch 5 @ 260 Gray - then recovered (14:34) Strange behaviour ch 7 & ch 3 @ 290 Gray - then recovered (14:35) Ch7 went down @ 330 - Ch8 @ 336 - (14:36) Ch5 @ 360 - Ch6 @ 377 (Ch 1-2-3 are relatevily stable) Ch3 @ 400 - Ch4 (was blocked) @420 (14:38) Ch1 @ 440 strange behaviour , back to normal a few seconds later. (14:39) end of run - Ch 1-2 are alive. ** ACCESS ** after reset the system recovered (Channels 1-2-6 are working) CFC Card CID/001 Test Digital part / no collimation Current Settings: 850 & 1kOhm Dose: 500 Gray ** Run 20 - file: PIF2006_02_19h15m18s32.flw (15:05) Beginning of run (15:07) SEU probably - ERRA/ERRB/ERRF (15:08) SEU probably - ERRA/ERRB/ERRF (15:12) Ch 6 went down @ 340 Gray (15:16) end of run