10 February 2009 Recent advances in streak tube characterization for multichannel laser pulse shape measurements on the LMJ facility
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Proceedings Volume 7126, 28th International Congress on High-Speed Imaging and Photonics; 712610 (2009) https://doi.org/10.1117/12.820364
Event: 28th International Congress on High-Speed Imaging and Photonics, 2008, Canberra, Australia
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.
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Clément Chollet, Clément Chollet, Dominique Gontier, Dominique Gontier, Céline Zuber, Céline Zuber, Patrick Brunel, Patrick Brunel, } "Recent advances in streak tube characterization for multichannel laser pulse shape measurements on the LMJ facility", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 712610 (10 February 2009); doi: 10.1117/12.820364; https://doi.org/10.1117/12.820364
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