The ultra high-speed photography is an essential diagnostic tool in research on ultra fast process. The image diagnostic instrument is required to obtain high speed framing images in high framing rate

short exposure time and suitable gap

and recording ultra fast process in fix time. A nanosecond framing camera was developed using optical framing technique and gate selection methord in this paper. An image was split into eight using octagonal pyramid mirror in the space and each split image has equal optical energy and original information. A nearly-pasted image intensifier with gate selection was also developed to enhance the weak optical image. Each channel uses an independent image intensifier with gate selection and an CCD camera. This system could capture eight images in sequence at the shortest exposure time and gap of 3 ns and 10 ns

and the exposure time and gap could be adjusted separately.Experimental results show that the framing speed achieves 1×10

8

frame/s and dynamic spatial resolution of 15 lp/mm. Several experiments

such as beam diagnose of electron pulse

plasma luminescence process have adopted this camera and many useful results are obtained.