Experimental Studies of the Blowoff Impulses Produced in the Flat Plate Targets Bombarded by Electron Beam

The blowoff impulses are the condition of applied loads of the structural response induced in the target structures bombarded by electron beam. In this paper, the experimental studies of the blowoff impulses produced in the flat plate targets bombarded by electron beam on FLASH-Ⅱ equipment of late years are discussed. In experiments, the eddy transducers and the probe principle of directly measuring the specific time intervals were used. The used target materials are LY-12 aluminum alloy and glass fiber reinforced plastic. The range of the energy fluxes on targets is 70～100 J/cm2. The range of the measured impulses is 150～210 Pa#8226;s. The measured coupling coefficients of impulses are stable basically. Their values equal to about 2.06 Pas/(J/cm2).