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Title: CORRECT TRACKING IN FFAGS.

Abstract

Fixed field alternating gradient accelerators have many features which require careful modeling in simulation. They accept beams over an extremely large momentum range, generally at least a factor of 2. They often use magnets whose lengths are comparable to their apertures. The beam often makes large angles with respect to the magnet axis and pole face normal. In some applications (muons in particular), the beam occupies a substantial fraction of the magnet aperture. The longitudinal dynamics in these machines often differ significantly from what one finds in more conventional machines such as synchrotrons. These characteristics require that simulation codes be careful to avoid inappropriate approximations in describing particle motion in FFAGs. One must properly treat the coordinate system geometry independently from the magnetic fields. One cannot blindly assume that phase space variables are small. One must take magnet end fields properly into account. Finally, one must carefully consider what it means to have a ''matched'' distribution that is injected into these machines.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
DOE/SC
OSTI Identifier:
881259
Report Number(s):
BNL-75717-2006-CP
R&D Project: 08778; KA1502030; TRN: US0602903
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: FFAG WORKSHOP '05; KYOTO UNIVERSITY RESEARCH REACTOR INSTITUTE, KYOTO, JAPAN; 20051205 through 20051209
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; APERTURES; DISTRIBUTION; GEOMETRY; MAGNETIC FIELDS; MAGNETS; MUONS; PHASE SPACE; RESEARCH REACTORS; SIMULATION; SYNCHROTRONS

Citation Formats

BERG, J.S. CORRECT TRACKING IN FFAGS.. United States: N. p., 2006. Web.
BERG, J.S. CORRECT TRACKING IN FFAGS.. United States.
BERG, J.S. Mon . "CORRECT TRACKING IN FFAGS.". United States. doi:. https://www.osti.gov/servlets/purl/881259.
@article{osti_881259,
title = {CORRECT TRACKING IN FFAGS.},
author = {BERG, J.S.},
abstractNote = {Fixed field alternating gradient accelerators have many features which require careful modeling in simulation. They accept beams over an extremely large momentum range, generally at least a factor of 2. They often use magnets whose lengths are comparable to their apertures. The beam often makes large angles with respect to the magnet axis and pole face normal. In some applications (muons in particular), the beam occupies a substantial fraction of the magnet aperture. The longitudinal dynamics in these machines often differ significantly from what one finds in more conventional machines such as synchrotrons. These characteristics require that simulation codes be careful to avoid inappropriate approximations in describing particle motion in FFAGs. One must properly treat the coordinate system geometry independently from the magnetic fields. One cannot blindly assume that phase space variables are small. One must take magnet end fields properly into account. Finally, one must carefully consider what it means to have a ''matched'' distribution that is injected into these machines.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 30 00:00:00 EST 2006},
month = {Mon Jan 30 00:00:00 EST 2006}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

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