SBS spot++ (beam size verification)
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Revision as of 15:12, 8 June 2021 by Flay (Talk | contribs) (Created page with "To image the target or raster size by plotting the hits as a function of raster x and y current, we do the following: == Taking the Data == == Analyzing the Data == * Log...")
To image the target or raster size by plotting the hits as a function of raster x and y current, we do the following:
Taking the Data
Analyzing the Data
- Log into one of the aonl machines (e.g., a-onl@aonl1).
- Run the command: spot_SBS [run-no], where run-no is the CODA run number of the raster scan. If omitted, the most recent run will be analyzed.
- After a few moments, the plots will pop up
- When prompted, enter y on the command line to post the plots to the HALOG (n does not post to the HALOG).
Plot Descriptions
BPMA y vs x: Shows the beam location at BPM A BPMA x: Shows the number of events at each x value in BPM A BPMA y: Shows the number of events at each y value in BPM A BPMB y vs x, BPMB x, BPMB y: Same as above but for BPM B Beam at target y vs x, …x, …y: Same as above for at the target BPMA Antenna 1, 2, 3, 4: Signal at the four wires of BPM A, one for X+, X-, Y+, Y-, respectively BPMB Antenna 1, 2, 3, 4: Same as above but for BPM B
