Paper | Title | Page |
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RPPE027 | High Intensity High Energy E-Beam Interacting with a Thin Solid State Target: First Results at AIRIX | 1982 |
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Funding: CEA, Polygone dExpérimentation de Morronvilliers, LEXA F-51 475 Pontfaverger (France). AIRIX is a 2 kA, 20 MeV, 60 ns linear accelerator dedicated to X-ray flash radiography. During a regular running phase, the primary electron beam is accelerated to and focused on a high atomic number target in order to generate X-rays by brembtrahlung mainly. The huge energy density deposited into the material is such that temperature rises up to 15000°K and that clusters and particles are violently ejected from the surface. In that mechanism, the backward emission speed can reach 5 km.s-1 and the debris can gradually accumulate and subsequently contaminate some sensitive parts of the machine. In order to protect the whole accelerating line from the detrimental effect of back-ejected particles, we have investigated the technical feasibility of a thin foil implementation upstream the X-ray converter. |