I am working to put in order the wrong list , and I found a number of
messages about the calibration system.
Can you check if these problems are still present?
Maurizio e Stefano.
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| LASER CALIBRATION SYSTEM |
----------------------------
*F 1197 2-Apr-1994 1-Sep-1993 SM1N07
Baker No triggers on laser calibrations.
Update as of: 27-Apr-1994 by Steele
New fiber installed.
Update as of: 14-Jun-1994 by Baker
Verified that there were pulses from the PMTs for laser
events, but this box still didn't trigger despite large
pulses (< 1V)
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| LED CALIBRATION SYSTEM |
--------------------------
*E 1353 2-Jul-1994 1-Sep-1993 SM1W07-0
Hawthorne -0 end LED dead in SM1W01.
*E 1352 1-Jul-1994 1-Sep-1993 SM1C15-1
Hawthorne Kate and Colin noted in the SM 1 log book that the led
cable to 1C15-1 was bad or had a poor connection. I agree
with this assessment after checking that the LED is fine
and the splitter box is fine and the tubes are fine but
that there is no LED signal when the 15-1 cable is used.
There may be a spare some place but I did not see it in a
quick check around the tank ends. Thus there is no LED
signal from 1C15-1 leds because of a bad cable/poor
connection.
*F 1229 19-Apr-1994 1-Jan-1994 SM6B12
Baker/Okada No signal from -1 side LED.
Update as of: 14-Jun-1994 by Hawthorne
LED does flash when pulsed at tank end. Tank does appear
in latest LED calibrations.
*F 1228 19-Apr-1994 1-Jan-1994 SM5E12
Baker No signal from -1 side LED.
*F 1227 19-Apr-1994 1-Jan-1994 SM5E04
Baker No triggers during LED calibration.
*F 1226 19-Apr-1994 1-Jan-1994 SM5W04
Baker/Okada -0 end LED not working. No triggers on LED events.
*F 1222 19-Apr-1994 1-Jan-1994 SM4E05
Baker Very few triggers on laser events (about 1%).
*E 1191 24-Mar-1994 1-Sep-1993 SM3W08-0
Scholberg No response from LED.
Update as of: 19-Apr-1994 by Baker
Normal trigger rate on LED events.
Update as of: 21-Apr-1994 by R. Liu
LED deadness confirmed on 19-Apr.
*F 1080 15-feb-1994 01-jan-1900 3T10-1
Nolty LED problem; probably cable or fanout channel (tried spare, no
change)
Update as of: 19-Apr-1994 by Baker
Normal trigger rate during LED calibrations.
Update as of: 21-Apr-1994 by R. Liu
Confirmed bad LED on -1 end of tank.
Update as of: 28-Jun-1994 by Orth
The dead LED at 3T10 was the one being used, so I switched
with its partner which was good.
*F 1187 22-Mar-1994 1-Jan-1994 SM4E01
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker
Still dead.
Update as of: 21-Apr-1994 by R. Liu
-1 side LED not flashing, not in switchbox. (meaning that
the problem is not in the switchbox)
*F 1181 22-Mar-1994 1-Jan-1994 SM6W07
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
No signal from -1 side LED.
*F 1180 22-Mar-1994 1-Jan-1994 SM6E12
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
No signal from -0 end LED.
*F 1178 22-Mar-1994 1-Jan-1994 SM6C12
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
No signal from -0 side LED.
*F 1177 22-Mar-1994 1-Jan-1994 SM4T08
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker
Still dead.
Update as of: 21-Apr-1994 by R. Liu
Both LEDs work, but the 0-side signal is small.
Update as of: 28-Jun-1994 by Orth
Left hand LED at -0 end of tank is dead.
*W 1175 22-Mar-1994 1-Jan-1994 SM5T13
Baker Only occasional ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
Very poor signal about 200 mV normall seen from -0 side
LED.
*F 1166 22-Mar-1994 1-Jan-1994 SM5E06
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okads
No signal from -1 side LED.
*F 1165 22-Mar-1994 1-Jan-1994 SM5E02
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
No signal from -0 end LED.
*F 1164 22-Mar-1994 1-Jan-1994 SM5E01
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
No signal from -1 side LED.
*F 1163 22-Mar-1994 1-Jan-1994 SM5W02
Baker No ERP triggers during LED calibrations
Update as of: 19-Apr-1994 by Baker/Okada
Both LEDs on -0 end of tank are bad.
*W 1067 08-feb-1994 01-sep-1993 SM2T04-0
Nolty LED cable problem.
Update as of: 21-Apr-1994 by Baker
Tank dead in latest LED calibrations.
*W 1068 08-feb-1994 01-sep-1993 SM2T06-1
Nolty LED cable problem.
Update as of: 21-Apr-1994 by Baker
Box triggered on about 10% of LED pulses in calibration
run.
*W 1049 08-feb-1994 01-sep-1993 SM6E13-0
Longley 0-side LED no good.
*W 1035 08-feb-1994 01-sep-1993 SM2E08-1
Nolty LED in 1-end not working
Update as of: 21-Apr-1994 by Baker
Tank triggers about 40% of the time in latest LED
calibrations.
*W 1034 08-feb-1994 01-sep-1993 SM1E11-0
Scholberg LED in 0-end not working
Update as of: 21-Apr-1994 by Baker
Tank dead in latest LED calibrations
Update as of: 7-Jun-1994 by Hawthorne
Reconfirmed that 1E11-0 does not have a working LED.
*E 1030 07-feb-1994 01-sep-1993 SM1T17-0
Michael Bad LED switchbox channel
Update as of: 21-Apr-1994 by Baker
Tank dead in latest LED calibrations.
*E 143 30-APR-1993 1-JAN-1900 6B07
KATSVNDS-MITTELBRUNN 0 side LED dead; switched to spare on Apr 27, spare good.
1 side LED dead, switched to spare, spare also dead.
Update as of: 14-Jun-1994 by Hawthorne
Pulsing LED at tank end works fine. NOT a tank end
problem. This tank does trigger in LED TDC calibrations.
*W 120 23-APR-1993 1-JAN-1900 1B01 1B01
DIEHL-MICHAEL-MUSSER
Phototube gains on the 0 side seem a bit low...Perhaps2-3 mV/SPE. The 0
side LED was swapped to the spare with some improvement in light output.
Still rather small pulses though for 20 ns pulse width to the LED's.
Approx 1 V pulses if using a 50 ns pulse width. Hence suggested improvement
by increasing pulse width.
*I 127 23-APR-1993 1-JAN-1900 2B11 2B11
DIEHL-MICHAEL-MUSSER Weak LED. Needs investigation.
*E 21 25-jan-1993 1-jan-1900 SM2C08
FILE end 0 dead led
Update as of: 21-Apr-1994 by Baker
Tank has a normal trigger rate in latest LED calibrations.