The development of a streak tube with improved time and spatial resolution

J. R. Howorth; J. S. Milnes; Y. Fisher; A. Jadwin; R. Boni; P. A. Jaanimagi

doi:10.1117/12.2270599

20 February 2017 The development of a streak tube with improved time and spatial resolution

J. R. Howorth, J. S. Milnes, Y. Fisher, A. Jadwin, R. Boni, P. A. Jaanimagi

Proceedings Volume 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics; 103280Q (2017) https://doi.org/10.1117/12.2270599
Event: 31st International Congress on High-Speed Imaging and Photonics, 2016, Osaka, Japan

Abstract

The fusion diagnostic community require optical recording instruments with precise time resolution covering a dynamic range of many orders of magnitude. In 2012 the Laboratory for Laser Energetics, Photek and Sydor Instruments embarked on the re-design of an improved streak tube for fusion diagnostics. As a baseline, we started with the Photek STY streak tube because the tube body can accommodate a 35 mm long photocathode. Electron optical modelling was carried out by both Paul Jaanimagi in the US and by Photek in a parallel exercise. Many changes and modifications were made: the time resolution was improved to 5 ps, the usable cathode length was increased from 20mm to 32 mm under high extraction field operation and the off-axis spatial resolution was substantially improved compared to other tubes of this format. Several tubes have been built and tested in a Sydor ROSS-5800 streak cameras, and show greatly improved resolution (MTF).

Citation Download Citation

J. R. Howorth, J. S. Milnes, Y. Fisher, A. Jadwin, R. Boni, and P. A. Jaanimagi "The development of a streak tube with improved time and spatial resolution", Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 103280Q (20 February 2017); https://doi.org/10.1117/12.2270599

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