Electron-based ultrashort hard x-ray source

Ulf Hinze; Andre Egbert; Boris Chichkov; Klaus Eidmann

doi:10.1117/12.593387

21 March 2005 Electron-based ultrashort hard x-ray source

Ulf Hinze, Andre Egbert, Boris Chichkov, Klaus Eidmann

Proceedings Volume 5714, Commercial and Biomedical Applications of Ultrafast Lasers V; (2005) https://doi.org/10.1117/12.593387
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

Recently, an electron-based ultrashort hard-x-ray source has been developed at the Laser Zentrum Hannover e.V. In this source x-ray pulses are produced by combining femtosecond laser technology with a specially designed x-ray diode. At first, ultrashort electron pulses are generated by photoemission from a photocathode. Then, these electron pulses are accelerated over a short distance towards a high-Z anode. Hard-x-rays are produced via Bremsstrahlung and characteristic line emission. Now detailed measurements of the hard-x-ray pulse duration have been performed using an advanced streak camera. The streak camera has a sub-picosecond time resolution in the keV range. With this camera hard-x-ray pulse durations of less than 5 ps were observed for electron pulse charges of the order of several pC. In this contribution we present our results on the x-ray pulse duration measurements and their dependence on different experimental parameters. A comparison with theoretical simulations is given.

Citation Download Citation

Ulf Hinze, Andre Egbert, Boris Chichkov, and Klaus Eidmann "Electron-based ultrashort hard x-ray source", Proc. SPIE 5714, Commercial and Biomedical Applications of Ultrafast Lasers V, (21 March 2005); https://doi.org/10.1117/12.593387

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