Lixiscope is made up of X-ray source

X-ray image intensifier and high voltage power supply.(Among) them the X-ray cathode is the key in technology of image tube.Soft X-ray usually means that waveband is between in 0.012 nm and 0.062 nm(tube voltage at 20~100 kV).Corresponding X-ray cathode have two types:transmission and reflection type

which is used to realize the conversion function that X-ray transferred to photoelectrons.And at present X-ray cathode in X-ray image intensifier that applied in our country with Microchannel plates(MCP) is mostly CsI/MCP structure.One of them is with dense structure or dense-loose-dense structure(loose layer is very thin)

but the end surface of MCP is pervious

it works in the form of reflection type.Another one is dense-loose-dense structure(loose layer is very thick)

but most of the end surface channel of MCP is stop up

it relies mainly on transmission type working way and complementally on reflecting type working way.Exploring its making technology

studying its quantum detection efficiency analyzing its noise characteristic

improving the characteristic of image tube and system are the top priority tasks

especially there are practical meanings today that Lixiscope(Lixiscope-Low Intensity X-ray Imaging Scope) is developed fast and its use is widened even more in biomedicine.In this paper

the operation principle picture

the outputs characteristic curve and corresponding technical data of X-ray cathode is provided.The front and sectional stereo-scan photographs of CsI/MCP reflecting type X-ray cathode is provided

and available information has been offered.