There was an extensive controlled access yesterday june 19th.
During this time Catalina and Jerry replaced the E-counters
they had fixed. They also took out for repairs some counters
which were 'laying' inside the box.
In the CAMAC crate handling the trigger, I removed the 2213
discriminator and replaced it with a 4413. The test input of the
4413 is rated at 150 MHz.
I connected the tagger Master OR to the test input of the 4413.
I replaced the borrowed NIM-ECL converter for the T-counter
TDCs. This was the last module and corresponds to Right
T-counters 49 to 61.
The analog output of 4 E-counters were patched to the counting room.
These are:
E-counter # 5: patch#9
E-counter #178: patch#10
E-counter #319: patch#11
E-counter #368: patch#12
I have also looked at the analog output of 36 E-counters using
the flasher. Their HVs were all set at 1800V. I saved the traces,
and I will write out the results over the week-end.
That is all.
Luc
PS Last I heard, the tagger is still slated for the last 12 hours
of this run. This is, as ever, subject to change
--
GWU @ Cebaf
Bulding 16 - Room 27
Mail stop 16B
12000 Jefferson Avenue
Newport News, VA 23606
(757) 269-7680