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Proceedings Paper

Open Grid Versus Mesh Grid As The Extraction Field Structure In A Streak Camera Image-Converter Tube
Author(s): S. W. Thomas; R. L. Peterson
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Paper Abstract

We conclude that dynamic range of a streak tube does not depend on whether it uses a fine-mesh or an "open" structure to provide the extraction field. An RCA C-73435 streak tube body was fitted with two extraction grid structures by replacing the conventional "open" grid with a steel plate containing two apertures. One aperture simulated the "open" grid structure; the other was a 2 x 20 mm slit covered with a fine mesh (40 wires per mm, 38% transmissive). The apertures were equal distances above and below the tube axis. Using 35-ps pulses, dynamic range curves were taken at 1.06 pm on one aperture at a time, while blocking the other aperture. As we anticipated, the tube saturated at nearly the same point for the open and mesh apertures. The noise levels for both apertures were almost equal and very close to the film fog level. Noise level was lower than for earlier measurements on other makes of tubes with a fine-mesh grid. The dynamic range for both apertures was in the order of 6000, which indicates that the lower dynamic range of otner tubes must be due to something other than the use of a fine-mesh grid.

Paper Details

Date Published: 1 March 1983
PDF: 5 pages
Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); doi: 10.1117/12.967727
Show Author Affiliations
S. W. Thomas, Lawrence Livermore National Laboratory (United States)
R. L. Peterson, Lawrence Livermore National Laboratory (United States)

Published in SPIE Proceedings Vol. 0348:
15th Intl Congress on High Speed Photography and Photonics
Lincoln L. Endelman, Editor(s)

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