Transverse Resistive Wall Instability in the Two-Beam Accelerator

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Physical review A

OSTI ID:937210

Whittum, D H; Sessler, Andrew M; Neil, V K

The transverse resistive wall instability in the Two-Beam Accelerator (TBA) is investigated analytically and numerically. Without any damping mechanism, we find one to four e-folds in 100 m, depending on the design. It is found that Landau damping, due to energy spread within a beam slice, is not effective, due to rapid synchrotron oscillations in the FEL ponderomotive well. Damping due to an energy sweep along the beam is also considered and it is found that a small variation in energy along the beam, decreasing from head to tail, can significantly reduce growth. We conclude that the resistive wall instability is not a severe design constraint on a TBA.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Accelerator& Fusion Research Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 937210
• Report Number(s): LBL-29125; PLRAAN; TRN: US200819%%43
• Journal Information: Physical review A, Vol. 43, Issue 1; Related Information: Journal Publication Date: 1/1/1991; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

99
ACCELERATORS
DAMPING
DESIGN
INSTABILITY
LANDAU DAMPING
SYNCHROTRON OSCILLATIONS