MULTIFRAME MICROCHANNEL PLATE CAMERA FOR SXR AND VUV SPECTROSCOPY OF TARGET PLASMA

A multiframe camera based on a partitioned microchannel plate (MCP) wa s developed for the monitoring of soft X-ray (SXR) and vacuum ultravio let (VUV) emission from a near-wall plasma generated in a flow of hydr ogen plasma interacting with solid targets, The camera is capable of o btaining 8 sequential images with the dimensions 7 x (similar to 15) m m at a spatial resolution of not less than 10 p.l./mm and an exposure time of 100 ns, The camera was used as a registrator device For the pi nhole examination and spectroscopy of target plasma on an TRINITI MK-2 00UG setup. Investigations using the multiframe MCP camera revealed ce rtain features in the dynamics of evaporated target material and the s tructure of shielding layer, which were not distinguished by the integ ral measurements. The velocity eradiation front propagation from the t arget, as measured with the aid of the camera, was less than or equal to 5 x 10(6) cm/s. It was established that the side regions of the tar get plasma significantly affect the spatial distribution and spectrum of the radiation propagating along the target surface.