Special runs
CAL FHE study
check DAV-MeV conversion, efficiency
+++ BT-17 to BT-21 configurations
+ electrons, 0 degree, 5GeV/c, tower 3,
FHE=500MeV-750MeV-1000MeV-1500MeV-2000MeV
+ electrons, 45 degree, 5GeV/c, tower 3,
FHE=500MeV-750MeV-1000MeV-1500MeV-2000MeV
Pedestal drift vs time
1) Setup a delayed trigger with variable delay coming after a real trigger; take runs with low rate with such trigger to measure time-dependent pedestal variations
2) Take random trigger in BT22 configuration
3) take runs with near focus (use the table of settings in the barrack) and low energy e (500MeV or 1gev max) to maximize beam divergence on the CU; collect 100K at most
4) shoot a 6 gev proton beam through twr3 at a small angle and perform a rate scan using the slits - check for rate effect on the CAL. Try to determine threshold rate at which CAL pedestal start drifting