Commissioning of a higher harmonic RF system for the Advanced Light Source

Authors
Byrd, JM De Santis, S Georgsson, M Stover, G Fox, JD Teytelman, D
Citation
Jm. Byrd et al., Commissioning of a higher harmonic RF system for the Advanced Light Source, NUCL INST A, 455(2), 2000, pp. 271-282
Citations number
16
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
455
Issue
2
Year of publication
2000
Pages
271 - 282
Database
ISI
SICI code
0168-9002(200012)455:2<271:COAHHR>2.0.ZU;2-H
Abstract
We report on the commissioning of a higher harmonic RF system designed to i mprove the Touschek lifetime of the Advanced Light Source. In our best resu lts, we have achieved over a factor of two increase in the beam lifetime. T ransient beam loading of the harmonic cavities by unequal fill patterns pre sents the greatest limitations on lifetime improvement. We also describe se veral interesting effects of the harmonic cavities on the operation of the longitudinal and transverse multibunch feedback systems. (C) 2000 Elsevier Science B.V. All rights reserved.