Microwave measurements of the BNL/SLAC/UCLA 1.6 cell photocathode rf gun
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Brookhaven National Lab., Upton, NY (United States)
The longitudinal accelerating field E. has been measured as a function of azimuthal angle in the full cell of the cold test model for the 1.6 cell BNL/SLAC/UCLA {number_sign}3 S-band RF Gun using a needle rotation/frequency perturbation technique. These measurements were conducted before and after symmetrizing the full cell with a vacuum pump out port and an adjustable short. Two different waveguide to full cell coupling schemes were studied. The dipole mode of the full cell is an order of magnitude less severe before symmetrization for the 0{theta}-coupling scheme. The multi-pole contribution to the longitudinal field asymmetry are calculated using standard Fourier series techniques. The Panofsky-Wenzel theorem is used in estimating the transverse emittance due to the multipole components of E{sub x}.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016; AC03-76SF00515
- OSTI ID:
- 95573
- Report Number(s):
- BNL-61851; SLAC-PUB-95-6799; CONF-950512-162; ON: DE95013231; TRN: 95:018442
- Resource Relation:
- Conference: 16. Institute of Electrical and Electronic Engineers (IEEE) particle accelerator conference, Dallas, TX (United States), 1-5 May 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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