Sub-100 fs streak tube: computer-aided design, manufacturing, and testing

N. V. Ageeva; S. V. Andreev; V. P. Degtyareva; D. E. Greenfield; S. R. Ivanova; A. M. Kaverin; T. P. Kulechenkova; G. P. Levina; V. A. Makushina; M. A. Monastyrskiy; N. D. Polikarkina; M. Ya Schelev; Z. M. Semichastnova; T. A. Skaballanovich; V. E. Sokolov

doi:10.1117/12.821666

10 February 2009 Sub-100 fs streak tube: computer-aided design, manufacturing, and testing

N. V. Ageeva, S. V. Andreev, V. P. Degtyareva, D. E. Greenfield, S. R. Ivanova, A. M. Kaverin, T. P. Kulechenkova, G. P. Levina, V. A. Makushina, M. A. Monastyrskiy, N. D. Polikarkina, M. Ya Schelev, Z. M. Semichastnova, T. A. Skaballanovich, V. E. Sokolov

Author Affiliations +

Proceedings Volume 7126, 28th International Congress on High-Speed Imaging and Photonics; 71261B (2009) https://doi.org/10.1117/12.821666
Event: 28th International Congress on High-Speed Imaging and Photonics, 2008, Canberra, Australia

Abstract

In the present communication we describe the design of the sub-100 fs streak-tube that may be used for commercial streak cameras manufacturing. Careful attention is paid to preparing of a very smooth input photocathode substrate on which a low surface resistance (1-5 Ohm/) photocathode of S-1 type is deposited. Our estimations have shown that the photocathode surface roughness of about tens of nanometers may restrict the ultimate time resolution at the level of 100 fs. This is the reason why the photocathode substrate surface has to be smooth within the units of nanometers. The curvature of the photocathode surface is also very important to compensate the difference in the time-of-flight of electrons emitted from the central and peripheral photocathode areas. Further modernization was conducted with a photocathode-accelerating mesh assembly. The assembly may operate with 2 - 3 ns (FWHM) electrical pulses of 12 - 15 kV amplitude. In order to improve the S/N ratio in the streaked images, a shuttering system was incorporated inside the tube. As the result, a completely new femtosecond streak tube of PV-FS-M type was designed, manufactured, and tested.

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N. V. Ageeva, S. V. Andreev, V. P. Degtyareva, D. E. Greenfield, S. R. Ivanova, A. M. Kaverin, T. P. Kulechenkova, G. P. Levina, V. A. Makushina, M. A. Monastyrskiy, N. D. Polikarkina, M. Ya Schelev, Z. M. Semichastnova, T. A. Skaballanovich, and V. E. Sokolov "Sub-100 fs streak tube: computer-aided design, manufacturing, and testing", Proc. SPIE 7126, 28th International Congress on High-Speed Imaging and Photonics, 71261B (10 February 2009); https://doi.org/10.1117/12.821666

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