FABRICATION TECHNOLOGY OF SERIES OF CYLINDRICAL THINWALL CAVITY TARGETS

On the purpose of studying the superthermal electrons’behavior well,reducing their disaster on ICF, we have fabricate series of cylindrical thinwall cabity targets.The details of fabrication process is described.In order to obtain cavity target with adjustable and uniform wall thickness,lower surface roughness and ability for supporting itself, we must solve following problems:high quality mandrel,electroplating coating and magnetic sputtering coating,wall thickness scale,unifoimity of mandrel rotating,increasing intensity of suporthinwall cavity targets,cavity-rupture prevention during corroding mandrel and thinwall parameters measuring.At last,we give out the experimental results briefly.