Study of Coupler's Effects on ILC Like Lattice

Conference · Sat May 01 04:00:00 EDT 2010 · Conf.Proc.C

OSTI ID:1962657

Saini, Arun ^[1]; Latina, Andrea ^[2]; Lunin, Andrei ^[2]; Ranjan, Kirti ^[2]; Solyak, Nikolay ^[2]; Yakovlev, Vyacheslav ^[2]

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1. Delhi U.
2. Fermilab

It is well known that insertion of a coupler into a rf cavity breaks the rotational symmetry of the cavity, resulting in an asymmetric field. This asymmetric field results in a transverse RF Kick. This RF kick transversely offsets the bunch from the nominal axis & it depends on the longitudinal position of the particle in the bunch. Also, insertion of coupler generates short range transverse wake field which is independent from the transverse offset of the particle. These effects cause emittance dilution and it is thus important to study their behaviour & possible correction mechanisms. These coupler effects, i.e. coupler’s RF kick & coupler's wake field are implemented in a beam dynamics program, Lucretia. Simulations are performed for main linac & bunch compressor of International Linear Collider (ILC) like lattices. Results are compared with analytical results and another beam dynamics code Placet. The good agreement has been achieved.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1962657
• Report Number(s): FERMILAB-CONF-10-680-APC; IPAC-2010-THPD088; oai:inspirehep.net:869084
• Conference Information: Journal Name: Conf.Proc.C Journal Volume: 100523
• Country of Publication: United States
• Language: English

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