Large-area X-ray gas detector

A large-area X-ray gas detector, comprising:

• a housing that has an inner cavity and a ray entrance communicated with the inner cavity, the inner cavity is filled with a working gas, and the working gas is a non-electronegativity gas sensitive to the X-ray;
• an entrance window of thin film type that is hermetically connected to the ray entrance such that the X-ray enters into the inner cavity;
• and
• a signal collection module comprising an anode wire electrode layer and a cathode electrode layer arranged parallel with each other in the inner cavity, in which the anode wire electrode layer has an anode wire for accessing to a high voltage, and the cathode electrode layer is grounded;
• and the anode wire electrode layer collects electrons generated by the working gas under an action of the X-ray,
• wherein the anode wire electrode layer further comprises an anode frame, and a plurality of insulating pillars are disposed on frame portions of opposite sides of the anode frame;
• the anode wire is serpentinely wrapped around the plurality of insulating pillars, and both ends of the anode wire are fixedly connected to the anode frame by a fixing assembly.