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21 September 2005 An ultra-fast x-ray streak camera for the study of magnetization dynamics
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An ultrafast x-ray streak camera is under development at LBNL for application primarily to studies of ultrafast magnetization dynamics. In initial work, a temporal resolution of 900fs in accumulative mode at 5 KHz has been achieved. These results and methods currently being developed to improve the resolution and repetition rate are resented. One of the primary limits to temporal resolution is caused by the finite energy width of the electron distribution from the photocathode. The positive time of flight dispersion with energy in the accelerating region of the camera can be countered by introduction of downstream optics that give negative time of flight dispersion with energy, leading to an approximate overall cancellation of this temporal aberration. Initial results of an end-to-end simulation model using the full photoelectron distribution are presented.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Feng, W. Wan, J. Qiang, A. Bartelt, A. Comin, A. Scholl, J. Byrd, R. Falcone, G. Huang, A. MacPhee, J. Nasiatka, K. Opachich, D. Weinstein, T. Young, and H. A. Padmore "An ultra-fast x-ray streak camera for the study of magnetization dynamics", Proc. SPIE 5920, Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, 592009 (21 September 2005);


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