Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1992-07-17
1994-08-09
Lee, Benny T.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
328233, H05H 900
Patent
active
053369726
ABSTRACT:
A compact high brightness linear accelerator is provided for use, e.g., in a free electron laser. The accelerator has a first plurality of acclerating cavities having end walls with four coupling slots for accelerating electrons to high velocities in the absence of quadrupole fields. A second plurality of cavities receives the high velocity electrons for further acceleration, where each of the second cavities has end walls with two coupling slots for acceleration in the absence of dipole fields. The accelerator also includes a first cavity with an extended length to provide for phase matching the electron beam along the accelerating cavities. A solenoid is provided about the photocathode that emits the electons, where the solenoid is configured to provide a substantially uniform magnetic field over the photocathode surface to minimize emittance of the electons as the electrons enter the first cavity.
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Richard L. Sheffield et al., "Compact Free-Electron Laser at the Los Alamos National Laboratory," presented at SPIE's 1991 International Symposium on Optical and Optoelectronic Applied Science and Engineering, Jul. 21-26, 1991.
Richard L. Sheffield et al., "Physics Design of the High Brightness LINAC for the Advanced Free-Electron Laser Initiative at Los Alamos," presented at the Thirteenth International Free-Electron Laser Conference, Aug. 25-30, 1991.
Carlsten Bruce E.
Sheffield Richard L.
Young Lloyd M.
Eklund William A.
Lee Benny T.
Moser William R.
The United States of America as represented by the United States
Wilson Ray G.
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