The Technique Of Point Projection Spectroscopy And Its Application To The Planar Foil Mix Experiment At The AWE HELEN Laser

P. A. Rosen; P. Fieldhouse; J. C. V. Hansom; K. Oades; T. J. Goldsack; R. E. Powell; J. Read

doi:10.1117/12.961840

27 November 1989 The Technique Of Point Projection Spectroscopy And Its Application To The Planar Foil Mix Experiment At The AWE HELEN Laser

P. A. Rosen, P. Fieldhouse, J. C. V. Hansom, K. Oades, T. J. Goldsack, R. E. Powell, J. Read

Author Affiliations +

Proceedings Volume 1140, X-Ray Instrumentation in Medicine and Biology, Plasma Physics, Astrophysics, and Synchrotron Radiation; (1989) https://doi.org/10.1117/12.961840
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

P. A. Rosen, P. Fieldhouse, J. C. V. Hansom, K. Oades, T. J. Goldsack, R. E. Powell, and 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); https://doi.org/10.1117/12.961840

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available