One bump lattice studies
The author has developed a method of measuring the lattice in the Main Ring using a series of closed orbit measurements taken with assorted 1-bumps around the ring. The data is fit using the MINUIT fitting package in a method similar to that used by Shekhar Shukla in the Booster. The Minuit package then performs a chi square fitting to the beta, phase, tune and kick strength. This method has been tested on simulated data, but past measurements have had difficulties in real data. One of the problems with this method is it's inability to distinguish beta function errors and scaling errors of BPMs. One BPm in particular at VD27 appeared to have an error of 380%. The BPM specialist was informed and recently replaced the RF module for this BPM. This study was to verify the finding, and to further study the effect of the BPM error. Also, it was intended to acquire 1-bump data under the condition that the lattice is changed notably by changing setting of one of the harmonic quadruples.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 15017145
- Report Number(s):
- FERMILAB-EXP-185; TRN: US200621%%27
- Country of Publication:
- United States
- Language:
- English
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