Revision as of 20:56, 27 May 2021

Detector testing

EHAT:PMT5, 50V, ramps up, 0.08uA readback. LED cable now connected with new connector. Works. Using driver channel 5. ~250pC at 70%.
ELBD:PMT0, 200V, ramps up, 0.2uA readback. works. 550pC at 50% with elbd:pmt0 cables. installed at egun window. led driver 8. hv, sig 4.

Installed spare PMT (previous ELBT:PMT1A) at window on gun. Connected cables for ELBD:PMT0 because that set had LED cable.
Place mic stand on EAST side in low energy section for ELBT:PMT1B installation. Connected all cables. All labeled correctly.
Note, LED cable label for PMT1C is EACB:LED.
Found that cable on the roof labeled EABT:PMT1:SIG is actually ELBD:PMT0:LED. Will connect this to channel 8 in driver. Getting 225pC at 45%. Also tested with LED driver channel 8.
CHANGE OF PLAN:
Using PMT0 as the diagnostics detector after all with pmt0 cables. sig, hv, channel 4 and led ch8. doing this as old pmt1b led doesnt't seem to work? or detector doesn"t work? tested with pmt0 cables and pmt1b cables, but no response.
using former pmt1a is now pmt1b, NM 4289. with pmt1b cables.

Connected EACB:PMT1:LED to LED driver channel 2 on roof. Cable will be used for to ELBT:PMT1C detector in hall. Present label is EACB:PMT1:LED.
Found that cable on the roof labeled EABT:PMT1:SIG is actually ELBD:PMT0:LED. Will connect this to channel 8 in driver.

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 =Detector testing=
 *EHAT:PMT5, 50V, ramps up, 0.08uA readback. LED cable now connected with new connector. Works. Using driver channel 5. ~250pC at 70%.
+*ELBD:PMT0, 200V, ramps up, 0.2uA readback. works. 550pC at 50% with elbd:pmt0 cables. installed at egun window. led driver 8. hv, sig 4.
 =Detector installation=