- Instructions from Kaz:1). Mount the detector using a black adapter plate. Detector connected to the adapterplate using only 2 screws (not all 4). (In fact, do we even need the adapter plate?) Done. Note: supplied adapter plate does not match mounting pattern in detector case. Need to find alternate plate.2). Prepare water chiller- Disconnect water chiller from network (if it's connected). Done.- Prime the water chiller using the short hose (in the FAR hall detector cabinetlock key is 0624). Run the pump at 100%, 50%, and 10%, 10minutes at each setting. (Done)15% = 2.8 l/m50% = 3.4 l/m100% = 4.4 l/m- Reconnect water chiller to network. (Done)- connect water chiller to detector, and start running. Flow should be ~2.4LPM. (2.5l/m) (Done)3). epix10k2m power- attach power cables to PDU...label cables if necessary. (Done). Do not attach toepix10k2m yet.- pin-out the epix10k2m power cables (Done, values below).
Quad0 Line MPOD CH A-M AVDD 1V 100 B-N AVDD 1V 100 C-P AVDD 1V 100 D-R AVDDsense 0V E-S DVDD 1.5V 101 F-G DVDDsense 0V U-V HV 10V 0 Quad1
A-M AVDD 2V 102 B-N AVDD 2V 102 C-P AVDD 2V 102 D-R AVDDsense 0V E-S DVDD 2.5V 103 F-G DVDDsense 0V U-V HV 20V 1 Quad2
A-M AVDD 3V 104 B-N AVDD 3V 104 C-P AVDD 3V 104 D-R AVDDsense 0V E-S DVDD 3.5V 105 F-G DVDDsense 0V U-V HV 30V 2 Quad3 A-M AVDD 4V 106 B-N AVDD 4V 106 C-P AVDD 4V 106 D-R AVDDsense 0V E-S DVDD 4.5V 107 F-G DVDDsense 0V U-V UV 40 3 - if pin-out is ok, turn off power, and connect cables to detector. (done)- If water is flowing, turn on power. Holding off on this since there is no fiber available to let us know whether the detector is working.
- Instructions from Kaz:
- Detector bolted to stand just out of x-ray beam per Chollet instruction. To be positioned later.
- 15 ft. ePix Quad cables labelled and connected.
- Chiller loop short-circuited, run @18C and 15% power for ~10 min. Had to refill water to eliminate bubbles....seemed easier to get rid of bubbles with reservoir cap removed/loose.
Checkout August 7:
- Detector mounted to motorized stage, powered up nominally at 0845. Allow 15 min to stabilize.
- Failed 'epix10k_pedestals' script. Detector looks good in AMI (considering no peds).
- ~0930 Q1 tripped....reset with wider env limits.
- Silke thinks pedestal script is fixed...'epix10_pedestals', then 'makepeds' to load. Seems good. Check timing first.
- Move integration window via acqToasicRDDelay (1 unit = 10ns). Started ~78032, verified off at 68032, so good @78k.
- Ag behenate, all five gain settings. No attenuation. Hi/Lo gain autorange is no good. Quad 1 is way off.
- Set fixed high, make new pedestal, record ring shape for geometry.
- While checking motion limits to adjust ring coverage, we handed off the beam to AD and they were unable to return it for a couple of hours....
Record MPOD voltage/currents:
Channel Line V I 0 HV0 200.000V 0.000A 1 HV1 200.000 0.000 2 HV2 200.004 0.000 3 HV3 200.001 0.000 100 AVDD0 6.006 4.314 101 DVDD0 6.001 1.484 102 AVDD1 6.002 4.278 103 DVDD1 6.000 1.488 104 AVDD2 6.004 4.276 105 DVDD2 6.000 1.506 106 AVDD3 6.002 4.276 107 DVDD3 6.000 1.541 - General: Lack of usable pedestal is causing some trouble, but the loss of beam has made it difficult. Somewhat mitigated by the fact that this detector has already been extensively run by TVD, and we have other data giving ring/geometry info as well as gain info under flux. We do have some full-beam rings to study that should include some gain-switching for comparison with previous data.