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FXR fast beam imaging diagnostics

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5 Author(s)
Ong, M. ; Lawrence Livermore Nat. Lab., CA, USA ; Ferriera, T. ; Gilliam, R. ; Zentler, J.
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The Lawrence Livermore National Laboratory flash X-ray (FXR) machine is being upgraded to produce two pulses. A very fast imaging system has been developed to characterize the electron beam diameter and shape. The system consists of a kapton target insertion mechanism and a framing camera. It has a fast gated imaging tube (500 ps) and CCD subsystem to capture and send the image to the control room. The beam diameter data provides insight on mechanisms that effect the X-ray spot size. These colorful beam measurements are compared with the authors' other diagnostics to form a more complete picture of beam behavior. A demonstration is described where the image data was used to design a collimator to improve X-ray beam performance.

Published in:

Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International  (Volume:2 )

Date of Conference:

27-30 June 1999