Status and Progress of High Energy Electron Radiography

The interaction between electron beam and target was studied by code EGS simulation. The imaging lens optics was designed and the effect of beam matching on the spatial resolution, ultrafast beam split and transverse uniform beam generation were studied. Through experimental study, the micrometer spatial resolution of high energy electron radiography (HEER) was reached and it could achieve target thickness and density resolutions, and bright-dark field imaging. Furthermore, the future plan of HEER program was shown in order to further improve the HEER technology and extend the HEER application filed.