Zobrazeno 1 - 10
of 96
pro vyhledávání: '"R.L. Swent"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 144:25-31
We have implemented a control system for the free electron laser (FEL) and its linear accelerator which allows us to produce independently controlled FEL beams multiplexed on a macropulse time scale. In this paper, we discuss the generation of multip
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 407:151-156
Requests for beam time at the Stanford Picosecond Free Electron Laser Center far exceed the amount available. We describe our efforts to increase the available beam time by interleaving pulse trains of different wavelengths and delivering these to di
Autor:
R.L. Swent, Robert L. Byer, Robert H. Siemann, Yen-Chieh Huang, Tomas Plettner, James E. Spencer, Todd I. Smith, Richard H. Pantell, Helmut Wiedemann
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 407:316-321
A physics experiment for laser-driven, electron acceleration in a structure-loaded vacuum is being carried out at Stanford University. The experiment is to demonstrate the linear dependence of the electron energy gain on the laser field strength. The
Autor:
Sheldon Datz, Richard H. Pantell, Hongkun Park, R. K. Klein, M. J. Alguard, B. L. Berman, M.V. Hynes, R.L. Swent, J. O. Kephart
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 119:71-78
We have obtained channeling-radiation spectra for both electrons and positrons incident along the major planes of LiH and LiD crystals. Analysis of the data yields two significant results: (1) the thermal-vibration amplitude of LiD is smaller than th
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 375:87-90
We have been able to measure the longitudinal phase space distribution of the Stanford Superconducting Accelerator's (SCA) electron beam by applying tomographic techniques to energy spectra taken as a function of the relative phase between the beam a
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 358:300-303
In the past year, the Stanford Picosecond FEL Center has produced more than two thousand hours of beam time dedicated to user experiments. To assure reliable beam delivery and to maximize productivity of our users we have developed a sophisticated sy
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 358:216-219
Recently, transform limited optical micropulses with lengths of less than 600 fs FWHM have been produced at the Stanford Picosecond Free Electron Laser (FEL) Center. These sub-picosecond FEL optical pulses are important for many types of experiments,
Autor:
R. K. Klein, H. D. Dulman, B. L. Berman, R.L. Swent, Sheldon Datz, Richard H. Pantell, J. O. Kephart, Z.-H. Bian, Hae-Sim Park
Publikováno v:
Physical Review B. 48:5818-5831
We present experimental observations of planar and axial channeling radiation emitted by relativistic electrons and positrons traversing a BeO crystal. Values of thermal vibration amplitudes are obtained, and found to be in agreement with those obtai
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 331:69-72
An important criterion in the design of a free electron laser (FEL) is its expected operating wavelength range. With a fixed wiggler gap, the longest wavelength at which oscillation can occur is set by diffraction losses in the optical resonator. To
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 304:21-24
A series of experiments were conducted at the Stanford superconducting accelerator free electron laser (SCA/FEL) to compare the energy extracted from the electron beam with the optical output energy. When all known losses were taken into account, it