Space charge calculations of elliptical cross-section electron pulses in PARMELA

Authors
Koltenbah, BEC Parazzoli, CG
Citation
Bec. Koltenbah et Cg. Parazzoli, Space charge calculations of elliptical cross-section electron pulses in PARMELA, NUCL INST A, 429(1-3), 1999, pp. 281-286
Citations number
5
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
429
Issue
1-3
Year of publication
1999
Pages
281 - 286
Database
ISI
SICI code
0168-9002(19990611)429:1-3<281:SCCOEC>2.0.ZU;2-I
Abstract
The Boeing version of the PARMELA code has been modified to compute the spa ce charge effects for electron pulses with highly elliptical transverse cro ss-sections. A dynamic gridding routine has been added to allow good resolu tion for pulses as they evolve in time. The results from calculations for t he chicane buncher in the 1 kW visible FEL beam line at Boeing indicate tha t the old circular algorithm of the SCHEFF subroutine overestimates the emi ttance growth in the bend plane by 30-40%. (C) 1999 Published by Elsevier S cience B.V. All rights reserved.