Performance regualting method of multi-wire high-pressure proportional counting tube

Abstract

The performance test method of multi-wire hyperbar proportional counting tube is operated by adopting the folloiwng steps: when every wire is mounted, hanging a weight whose weight is identical to that of wire so as to make tension of every wire attain uniformity; changing internal connection of anode wire in proportional counting tube into external connection; before connection connecting every wire with an external potentiometer, respectively applying identical working high-pressure to every wire and measuring out signal output amplitude of every wire, this moment, the measured output amplitudes can be different; respectively regulating potentiometer connected with every wire to make signal output amplitudes of every wire identical; after the satisfactory test result is obtained, these wire are connected together so as to implement said invention.

Description

technical field [0001] The invention relates to a debugging method of an astronomical instrument, in particular to a performance debugging method of a multi-wire high-pressure proportional counter tube. Background technique [0002] In the fields of high-energy physics, nuclear physics and space astronomy, the performance of detection instruments plays a very important role in obtaining accurate observations of celestial objects and the realization of scientific ideas. In the observation of space astronomical hard X-rays, the performance requirements of space detection instruments are very high, and must be: good stability, high energy resolution, and high sensitivity. The proportional counter tube is an important part of the detection instrument, and its performance plays a key role in the performance of the entire instrument. Proportional counter tube window effective area 500cm 2 , The working pressure is 3 kg of xenon gas. The anode wires are divided into four layers ...

AI Technical Summary

Problems solved by technology

The result of this connection method is that the energy resolution of the proportional counter tube is poor

The reason for the poor energy resolution is that the tightness of each wire is different after assembly, so that the impedance of each wire to the ground is different, and this difference is superimposed, which ultimately reduces the energy resolution of the proportional counter tube.