Soft X-Ray Streak Cameras

Gary L. Stradling

doi:10.1117/12.969102

7 June 1989 Soft X-Ray Streak Cameras

Gary L. Stradling

Proceedings Volume 1032, 18th Intl Congress on High Speed Photography and Photonics; (1989) https://doi.org/10.1117/12.969102
Event: 18th International Congress on High Speed Photography and Photonics, 1988, Xi'an, Shaanxi, China

Abstract

This paper is a discussion of the development and of the current state of the art in picosecond soft x-ray streak camera technology. Accomplishments from a number of institutions will be discussed. X-ray streak cameras vary from standard visible streak camera designs in the use of an x-ray transmitting window and an x-ray sensitive photocathode. The spectral sensitivity range of these instruments includes portions of the near UV and extends from the subkilovolt x-ray region to several tens of kilovolts. Attendant challenges encountered in the design and use of x-ray streak cameras include the accommodation of high-voltage and vacuum requirements, as well as manipulation of a photocathode structure which is often fragile. The x-ray transmitting window is generally too fragile to withstand atmospheric pressure, necessitating active vacuum pumping and a vacuum line of sight to the x-ray signal source. Because of the difficulty of manipulating x-ray beams with conventional optics, as is done with visible light, the size of the photocathode sensing area, access to the front of the tube, the ability to insert the streak tube into a vacuum chamber and the capability to trigger the sweep with very short internal delay times are issues uniquely relevant to x-ray streak camera use. The physics of electron imaging may place more stringent limitations on the temporal and spatial resolution obtainable with x-ray photocathodes than with the visible counterpart. Other issues which are common to the entire streak camera community also concern the x-ray streak camera users and manufacturers. Optimized spatial and temporal resolution, enhanced dynamic range, and the understanding of shot noise statistics are topics which are being worked on at this time.

Citation Download Citation

Gary L. Stradling "Soft X-Ray Streak Cameras", Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); https://doi.org/10.1117/12.969102

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