First Name: K
Middle Name:
Last Name: Kim
Full Name: Kim, K. J.
tags:
Potential Duplicate Authors:
view citation format
5 papers
| title: | Effects of undulator interruptions on the performance of high-gain FEL amplifiers |
| format: | conference procceeding |
| conference: | 17th International Free Electron Laser Conference |
| year: | 1996 |
| 3 authors: | | | |
| abstract: | The construction as well as the operation of a long undulator required for short wavelength generation with high-gain free-electron lasers will become easier if the undulator could be interrupted with drift sections every few gain lengths. To evaluate the effect of such interruption on the FEL performance, we study the following three effects; (i) the diffraction loss, (ii) the free space slippage and (iii) the phase de-coherence. The effect (i) is found to be small, the effect (ii) gives a condition on the length of the drift section and the effect (iii) is small, but not negligible. (3 References). |
| keywords: | |
|
Download | View | Details | edit | delete |
|
| title: | A 2 to 4 nm high power FEL on the SLAC linac |
| format: | conference procceeding |
| conference: | 14th International Free Electron Laser Conference |
| year: | 1993 |
| 13 authors: | | | | | | | | | | | | | |
| abstract: | The authors report the results of preliminary studies of a 2 to 4 nm SASE FEL, using a photoinjector to produce the electron beam, and the SLAC linac to accelerate it to an energy up to 10 GeV. Longitudinal bunch compression is used to increase ten fold the peak current to 2.5 kA, while reducing the bunch length to the subpicosecond range. The saturated output power is in the multi-gigawatt range, producing about 10/sup 14/ coherent photons within a bandwidth of about 0.2% r.m.s., in a pulse of several millijoules. At 120 Hz repetition rate the average power is about 1 W. The system is optimized for X-ray microscopy in the water window around 2 to 4 nm, and will permit imaging a biological sample in a single subpicosecond pulse. (21 References). |
| keywords: | |
|
Download | View | Details | edit | delete |
|
| title: | Remarks on the production of gravitational waves by EM radiation and particle beams |
| format: | conference procceeding |
| conference: | Workshop on Beam-Beam and Beam-Radiation Interactions: High Intensity and Nonlinear Effects |
| year: | 1992 |
| 4 authors: | | | | |
| abstract: | A report of the working group on the production of Gravitational Waves from electromagnetic radiation (EM) and particle beams. (9 References). |
| keywords: | |
| Details | edit | delete | |
| title: | High-gain free electron lasers as generators of short wavelength coherent radiation |
| format: | conference procceeding |
| conference: | Conference on Short Wavelength Coherent Radiation: Generation and Applications |
| year: | 1986 |
| 2 authors: | | |
| abstract: | The development of coherent radiation in high-gain free electron lasers, either from initial noise or from low-power input radiation, is analyzed in terms of three-dimensional Maxwell-Klimontovich equations. Exponential growth and saturation, transverse radiation profiles, transverse coherence and spectral features are discussed. Two possible systems of high-gain free electron lasers, one based on a storage ring and by-pass, another based on a linac and damping ring, are considered for the generation of 400 AA radiation. (19 References). |
| keywords: | |
| Details | edit | delete | |
| title: | Optimization of the parameters of a storage ring for a high power XUV free electron laser |
| format: | conference procceeding |
| conference: | International Conference on Insertion Devices for Synchrotron Sources |
| year: | 1986 |
| 12 authors: | | | | | | | | | | | | |
| abstract: | The authors describe the operation of an XUV high gain FEL operating within a bypass of an electron storage ring, and discuss the implications on storage ring optimization imposed be FEL requirements. It transpires that, in the parameter regime of interest, collective effects within the beam play an important role. For example, intrabeam scattering dilutes the transverse emittance of the beam and the microwave instability increases the momentum spread. Both phenomena reduce the effectiveness of the FEL. A computer code, ZAP, has been written which, for a given lattice design, takes all such effects into consideration and produces a figure of merit for FEL operation for that machine. They show the results of ZAP for several storage ring designs, all optimized for FEL operation, and present a design example of a facility capable of producing coherent radiation at 400 AA with tens of megawatts of peak power. (24 References). |
| keywords: | |
| Details | edit | delete | |