Cavity BPM with Dipole-Mode-Selective Coupler
Conference
·
OSTI ID:884883
In this paper, we present a novel position sensitive signal pickup scheme for a cavity BPM. The scheme utilizes the H-plane of the waveguide to couple magnetically to the side of the cavity, which results in a selective coupling to the dipole mode and a total rejection of the monopole mode. This scheme greatly simplifies the BPM geometry and relaxes machining tolerances. We will present detailed numerical studies on such a cavity BPM, analyze its resolution limit and tolerance requirements for a nanometer resolution. Finally present the measurement results of a X-band prototype.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 884883
- Report Number(s):
- SLAC-PUB-11913; TRN: US0603850
- Resource Relation:
- Conference: Presented at Particle Accelerator Conference (PAC 03), Portland, Oregon, 12-16 May 2003
- Country of Publication:
- United States
- Language:
- English
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