Author/Authors :
Disdier، نويسنده , , L. and Rouyer، نويسنده , , A. and Wilson، نويسنده , , D.C. and Fedotoff، نويسنده , , A. and Stoeckl، نويسنده , , C. and Bourgade، نويسنده , , J.-L. and Glebov، نويسنده , , V.Yu. and Garçonnet، نويسنده , , J.-P. and Seka، نويسنده , , W.، نويسنده ,
Abstract :
Using a penumbral technique with a biconical aperture we have obtained neutron images with the highest spatial resolution ever achieved. Implosions at the Omega laser of deuterium–tritium-filled glass microballoons with 2.5 and 4.2 μm thick walls produced images with full-width at half-maximums of 78 and 62 μm recorded with a resolution of 60 and 45 μm, respectively. Image sizes are in good agreement with calculations when the effects of noise are included. Higher geometrical spatial resolution and a new deconvolution technique improve the previous measurements of Ress et al. (Science 241 (1988) 956) obtained with a 80 μm resolution.
