X-ray imaging device with resolution of time-space and spectrum for
laser-produced plasma
Cheng jinxiu Zheng Zhijian Yang Cunbang Wen Tianshu
(Research Center for Laser Fusion, China Academy of Engineering Physics, P.O.Box 919-986, Mianyang,
621900)
Abstract:
X-ray imaging of three-dimensional resolution with time-space and
spectrum is a principal technique used to investigate plasmas produced in
laser-heated targets. It can be used to studies X-ray radiation
transportation within laser hot cavity, the temporal and spatial
dependence of radiation temperature, the opacity and non-equillbrium
characteristics of X-ray radiation. We have successfully developed a new
X-ray imaging device of three-dimensional with resolution of time-space
and spectrum for laser-produced plasma. It is consists of a four-pinhole
transmission grating array and a gated MCP X-ray picosecond frame
camera. The device have a time resolution from 60ps to 100ps with
different gain, a space resolution less than 70 μm and a spectrum
resolution 0.3nm. This paper presents the structure, the principle and the
performance of the device. Typical experimental results are also given.