IPAC2012 - List of Authors (Kopp, S.E.)

Paper	Title	Page
TUPPC040	Model Calibration and Optics Correction Using Orbit Response Matrix in the Fermilab Booster	1251
	M.J. McAteer, S.E. Kopp The University of Texas at Austin, Austin, Texas, USA V.A. Lebedev, E. Prebys Fermilab, Batavia, USA A.V. Petrenko BINP SB RAS, Novosibirsk, Russia
	A beam-based method of optical model calibration using the measured orbit response matrix, known as the LOCO method, was successfully applied to Fermilab's rapid-cycling Booster synchrotron. Orbit responses were measured by individually changing the strength of each dipole corrector throughout the acceleration cycle, and dispersion was measured by changing the beam's radial offset. The model calibration procedure revealed large calibration errors for all elements in the Booster's recently-installed multipole corrector packages and beam position monitors. The resulting model was used to correct coupling and beta beating.

WEPPR028	An Estimate of Out of Time Beam Upon Extraction for Mu2e	2994
	N.J. Evans, S.E. Kopp The University of Texas at Austin, Austin, Texas, USA E. Prebys Fermilab, Batavia, USA
	Funding: U.S. Dept. of Energy. A bunched beam with specific structure is crucial to attaining the experimental sensitivity desired by the Mu2e collaboration. The final goal is a ratio of in-time to out-of-time beam, known as beam extinction, of 10^-10. An AC dipole system is in development to attain the final goal by sweeping out-of-time beam onto a collimation system, but it is still necessary to achieve something on the order of 10^-5 when beam is extracted from the Fermilab Debuncher ring to the experiment hall. Several sources of out-of-time beam in the Debuncher ring are analyzed, including: intrabeam scattering, RF noise, beam-gas interaction and scattering off of the extraction septum. Estimates are given for each source as well as a final estimate of total out-of-time beam expected upon extraction.

Paper

Title

Page

Model Calibration and Optics Correction Using Orbit Response Matrix in the Fermilab Booster

1251

M.J. McAteer, S.E. Kopp
The University of Texas at Austin, Austin, Texas, USA
V.A. Lebedev, E. Prebys
Fermilab, Batavia, USA
A.V. Petrenko
BINP SB RAS, Novosibirsk, Russia

A beam-based method of optical model calibration using the measured orbit response matrix, known as the LOCO method, was successfully applied to Fermilab's rapid-cycling Booster synchrotron. Orbit responses were measured by individually changing the strength of each dipole corrector throughout the acceleration cycle, and dispersion was measured by changing the beam's radial offset. The model calibration procedure revealed large calibration errors for all elements in the Booster's recently-installed multipole corrector packages and beam position monitors. The resulting model was used to correct coupling and beta beating.

WEPPR028

An Estimate of Out of Time Beam Upon Extraction for Mu2e

2994

N.J. Evans, S.E. Kopp
The University of Texas at Austin, Austin, Texas, USA
E. Prebys
Fermilab, Batavia, USA

Funding: U.S. Dept. of Energy.
A bunched beam with specific structure is crucial to attaining the experimental sensitivity desired by the Mu2e collaboration. The final goal is a ratio of in-time to out-of-time beam, known as beam extinction, of 10^-10. An AC dipole system is in development to attain the final goal by sweeping out-of-time beam onto a collimation system, but it is still necessary to achieve something on the order of 10^-5 when beam is extracted from the Fermilab Debuncher ring to the experiment hall. Several sources of out-of-time beam in the Debuncher ring are analyzed, including: intrabeam scattering, RF noise, beam-gas interaction and scattering off of the extraction septum. Estimates are given for each source as well as a final estimate of total out-of-time beam expected upon extraction.