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Title: TBCI and URMEL - New computer codes for wake field and cavity mode calculations

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:5314725

Wake force computation is important for any study of instabilities in high current accelerators and storage rings. These forces are generated by intense bunches of charged particles passing cylindrically symmetric structures on or off axis. The adequate method for computing such forces is the time domain approach. The computer Code TBCI computes for relativistic as well as for nonrelativistic bunches of arbitrary shape longitudinal and transverse wake forces up to the octupole component. TBCI is not limited to cavity-like objects and thus applicable to bellows, beam pipes with varying cross sections and any other nonresonant structures. For the accelerating cavities one also needs to know the resonant modes and frequencies for the study of instabilities and mode couplers. The complementary code named URMEL computes these fields for any azimuthal dependence of the fields in ascending order. The mathematical procedure being used is very safe and does not miss modes. Both codes together represent a unique tool for accelerator design and are easy to use.

Research Organization:
Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-2000 Hamburg 52
OSTI ID:
5314725
Report Number(s):
CONF-830311-; TRN: 84-005029
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4; Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
Country of Publication:
United States
Language:
English