Checking the Beam Energy Calculation from the June 14, 2000 $\psi^\prime$ Scan

Werkema, Steve

Fermi National Accelerator Laboratory

关键词: Beam Dynamics Accelerators;    Recommendations;    43 Particle Accelerators;    Beam Monitors;    Accelerators;   

DOI  :  10.2172/984596
RP-ID  :  FERMILAB-PBAR-NOTE-638
RP-ID  :  AC02-07CH11359
RP-ID  :  984596

美国|英语

来源: UNT Digital Library

【 摘 要 】

The Conclusions/Recommendations of this paper are: (1) It is very important to keep the orbit close to the reference orbit. (2) It is likely that BPMs are not perfectly calibrated. (3) The orbit length calculation with Quad Steering ON is more sensitive to errors in the BPM readout than with Quad Steering OFF. However, unless we are at the {psi}{prime}, Quad Steering should be ON. (4) Question: Should we use the BPM corrections derived from this scan? Answer: I don't know. I would prefer not to. If we keep the orbit close to the reference, we don't need the corrections. For cases where the orbit differs appreciably from the reference orbit, we should do the energy calculation both ways. (Perhaps with Quad steering ON and OFF too). (5) We should use the reference orbit derived from this scan. However, if there is the time and the man power, it would be desireable to do a proper scan of the {psi}{prime}.