The precept of DC-SC photoinjector is to combine a DC photocathode electron gun and the superconducting cavity together. This scheme is specially adequate to provide the high averagebeam current.
DC SC超导光阴极注入器将直流光阴极电子枪和超导加速腔结合在一起，其特点之一是适合于提供高平均流强电子束。
2
Along with percentage of water loss and aggregate grade, the laws of small beam dry shrinkage strain and average dry shrinkage index.
小梁干缩应变、平均干缩系数随失水率、集料级配的变化规律。
3
By the analysis of average crack spacing, the maximum cracks width, crack height of the reinforced beams. derived a maximum crack width formula for the reinforced beam.