Yesterday we ramped the magnet up and down. Fortunately the DAQ was running well, and we have some data. Looking only at DLC index 50 (on ME+2/SLM2) we see for rφ and z:
This is all very well, but more of interest is how the cocoa fits move around. These are plots of cocoa fits to the center of ME+2/1/14
These are plots of cocoa fits to the center of ME+2/2/27
The variations give an encouraging clue as the the precision of the measurements.
After 6 1/2 hours of running with the full readout, there appear to be some problems. This time DCOPS numbers 202-204 (all but one of ME-1/6) are not giving profiles, and 246, 258, and sometimes part of 270 are also off (and at the same station YB0+), as well as 276.
The fact that DCOPS number 201 shows up suggests that we have either
Update: Hours later the same ME-1/6 DCOPS are missing, but 265 is now consistently missing as well as 276, and 270 is found.
Modified 18-September-2008 at 15:45
http://hep.physics.wisc.edu/~jnb/cms/18Sep2008
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