Calculation of the Short-Range Longitudinal Wakefields in the NLC Linac

Technical Report · Mon Nov 30 04:00:00 EST 1998

DOI:https://doi.org/10.2172/6431678· OSTI ID:6431678

Bane, Karl LF

Using two frequency domain and one time domain numerical approaches, we calculate the short-range longitudinal wakefield of the NLC linac accelerating structure, and find that the results agree to approximately 5%. We show that our results are consistent with an analytical formula for the impedance at high frequencies. We, in addition, obtain through fitting a simple formula for the short-range wakefield of a linac structure that can be useful in designing linear colliders. Finally, we demonstrate that for the NLC linac cavity the effects on the short-range wake of end conditions, tapering, and rounding of the irises are small.

• Research Organization: Stanford Linear Accelerator Center (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: ER
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6431678
• Report Number(s): SLAC-PUB-7862; ON: DE00009906
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430000* -- Particle Accelerators
ACCELERATORS
CALCULATION METHODS
ELECTROMAGNETIC FIELDS
LINEAR ACCELERATORS
LINEAR COLLIDERS