An application for tunes and coupling evaluation from turn-by-turn data at the Fermilab Booster

Conference · Tue Mar 01 04:00:00 EST 2011

OSTI ID:1013746

Marsh, W; Alexahin, Y; Gianfelice-Wendt, E

A console application using the phasing of Turn-by-Turn signals from the different BPMs has been tested at the Fermilab Booster. This technique allows the on-line detection of the beam tunes during the fast Booster ramp in conditions where other algorithms were unsuccessful. The application has been recently expanded to include the computation of the linear coupling coefficients. Algorithm and measurement results are presented. Although improved by the phased sum technique the automatic identification of the tunes is not always successful. This makes the use of the on-line application difficult. Ideas for further improvements are under investigation. Measurements have indicated that the effect of the skew quadrupoles is by a factor 3 weaker than expected from the nominal optics. A calibration of the skew quadrupole circuits using the TBT data is planned.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL
• Sponsoring Organization: DOE Office of Science
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1013746
• Report Number(s): FERMILAB-CONF-11-106-AD-APC
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ALGORITHMS
Accelerators
CALIBRATION
CONSOLES
DETECTION
EVALUATION
FERMILAB
OPTICS
QUADRUPOLES