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Proceedings Paper

Recent advances in streak tube characterization for multichannel laser pulse shape measurements on the LMJ facility
Author(s): Clément Chollet; Dominique Gontier; Céline Zuber; Patrick Brunel
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Paper Abstract

In this paper, we report on the latest experimental results on UV-visible multichannel streak cameras for pulse shape measurement on CEA Laser Megajoule facility. Two main characteristics of these instruments were studied: linear dynamic range and signal-to-noise ratio. With a standard PHOTONIS P820PSU bilamellar streak tube working at -10kV, a linear dynamic range of 240 was measured simultaneously in 7 channels at a 25 ns sweep duration. This value is adequate for the measurement of a high contrast laser pulse. Nevertheless, the signal-to-noise ratio at the bottom of the channel dynamic range is not sufficient to reach the requirements on the power measurement accuracy (better than few percents rms). This would require that the maximum output peak current of the P820 streak tube (0.25 mA @ - 10 kV) be improved by a factor of 5. Finally, the streak cameras that we deploy will have to be fully calibrated.

Paper Details

Date Published: 10 February 2009
PDF: 12 pages
Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 712610 (10 February 2009); doi: 10.1117/12.820364
Show Author Affiliations
Clément Chollet, Commissariat à l'Energie Atomique, DAM, DIF (France)
Dominique Gontier, Commissariat à l'Energie Atomique, DAM, DIF (France)
Céline Zuber, Commissariat à l'Energie Atomique, DAM, DIF (France)
Patrick Brunel, Commissariat à l'Energie Atomique, DAM, DIF (France)


Published in SPIE Proceedings Vol. 7126:
28th International Congress on High-Speed Imaging and Photonics
Harald Kleine; Martha Patricia Butron Guillen, Editor(s)

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