A Multiple Frame 100 Picosecond Framing Camera

S. Majumdar

doi:10.1117/12.968035

1 February 1985 A Multiple Frame 100 Picosecond Framing Camera

S. Majumdar

Proceedings Volume 0491, 16th Intl Congress on High Speed Photography and Photonics; (1985) https://doi.org/10.1117/12.968035
Event: 16th International Congress on High Speed Photography and Photonics, 1984, Strasbourg, France

Abstract

A gating grid was used for nanosecond gating of image tubes in the early sixties (1,2). With the improvement of switching techniques and impedance matched image tube design, 300 picosecond framing time was reported using biplanar diode image tubes (3). The present paper reports the extension of these ideas to 100 picosecond framing in a magnetically focussed image tube. A strip line photocathode-gating grid structure with discrete areas of photo-sensitive properties equally spaced along the strip line is used to to switch successive frames. The framing time is defined by the duration of the switching pulse, the length of the photosensitive region, and the gating voltage which defines the transit time spread of the photo-electrons. The operation of a prototype tube using an ultra violet sensitive photocathode and using an UV light source is described. Spatial resolution of this magnetically focusssed tube is better than 20 line pairs per mm.

Citation Download Citation

S. Majumdar "A Multiple Frame 100 Picosecond Framing Camera", Proc. SPIE 0491, 16th Intl Congress on High Speed Photography and Photonics, (1 February 1985); https://doi.org/10.1117/12.968035

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