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J. Phys. IV France 133 (2006) 761-765
A potential X-pinch based point X-ray source for phase contrast imaging of inertial confinement fusion capsulesR.B. Stephens1, F.N. Beg2, B. DeBono3, S.M. Eddinger1, D. Hass2, Z. Karim2, E. Shipton2, G. Tynan2, H.-W. Xu1 and K. Wagschal2
1 General Atomics, San Diego, CA, USA
2 Dept. of Mechanical and Aerospace Engineering, Univ. of California, San Diego, CA, USA
3 New College of Florida, Sarasota, FL, USA
Phase contrast x-ray imaging is necessary to monitor and validate the DT ice layer inside a cryo-ignition target. Presently available sources require a minute long exposure for imaging, thus contributing to blurring of images at the edges. An x-pinch is a bright, pulsed x-ray source that produces pulses of x-rays duration < 1 ns thus eliminating such blurring. Our preliminary results show that with an optimized detection system an x-pinch generated image could be used to locate the ice layer with the accuracy demanded by the NIF specifications
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