27 November 1989 The Technique Of Point Projection Spectroscopy And Its Application To The Planar Foil Mix Experiment At The AWE HELEN Laser
Author Affiliations +
Abstract
Point Projection Spectroscopy (PPSY is now well established as the principal diagnostic of the Planar Foil Mix Experiment on the HELEN laser at AWE. In this experiment measurements of hydrodynamic mix are made on a radiatively driven package comprising an ablator,foil and tamper. A separate laser beam is used to produce a point source of X-rays to backlight the package a few nanoseconds after the main drive pulse. The X-rays are diffracted from a suitable Bragg crystal onto a piece of film which is subsequently developed, digitised and the data processed using a computer analysis code. Results of this single-frame technique are presented. A recent development has been to split the backlighter beam into two separately focussable halves enabling two frames of information to be obtained along orthogonal lines-of-sight on each shot. The frames can be separated in time to give the temporal evolution of the package, or taken in coincidence to give two measurements simultaneously.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. A. Rosen, P. A. Rosen, P. Fieldhouse, P. Fieldhouse, J. C. V. Hansom, J. C. V. Hansom, K. Oades, K. Oades, T. J. Goldsack, T. J. Goldsack, R. E. Powell, R. E. Powell, J. Read, J. Read, } "The Technique Of Point Projection Spectroscopy And Its Application To The Planar Foil Mix Experiment At The AWE HELEN Laser", Proc. SPIE 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation, (27 November 1989); doi: 10.1117/12.961840; https://doi.org/10.1117/12.961840
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Film - The Versatile X-Ray Detector
Proceedings of SPIE (August 28 1977)
Rare Earth Screens, A Real Progress In Radiology?
Proceedings of SPIE (March 24 1976)
X ray spectra in the 12 to 60 keV...
Proceedings of SPIE (November 13 2001)

Back to Top