An inflatable and deflated sealed drift tube end

Abstract

The invention belongs to the technical field of drift tube sealing, and in particular relates to an inflatable and deflated sealed drift tube end, which is arranged on the port of the pipe body (6) of the drift tube, including a port arranged on the port and sealedly connected with the port plate (1), the port plate (1) is disc-shaped, the center position is provided with a first through hole, an adapter (3) is arranged in the first through hole, and an air nozzle ( 7), the anode wire in the drift tube extends into the gas nozzle (7) through the adapter (3); during the inflation operation, the gas nozzle (7) can input working gas into the adapter (3), and the adapter (3) can The flow rate of the working gas is reduced and transported into the pipe body (6); after the inflation operation is completed, the gas nozzle (7) can maintain a sealed state. The invention provides high sealing and high-voltage insulation for the drift tube, provides high positioning accuracy for the assembly of the anode wire, the anode wire can be replaced, and has all the functions required for inflation, deflation and gas retention.

Description

technical field [0001] The invention belongs to the technical field of drift tube sealing, in particular to an inflatable and deflated sealed drift tube end. Background technique [0002] Cosmic ray muon imaging technology is a new type of non-destructive imaging technology developed in recent years. It uses natural cosmic rays as the ray source and avoids the impact of radiation on the inspected objects and operators caused by external artificial ray sources. In addition, cosmic ray muons have strong penetrating ability and are sensitive to high atomic number (high Z) materials. These characteristics make this technology have advantages in non-destructive imaging of heavy nuclear materials, and are used in nuclear security, nuclear waste measurement, and treaty verification. The field has broad application prospects. [0003] The principle of cosmic ray μ imaging for detecting fissile nuclear materials is based on measuring the deflection angle of the cosmic ray μ passing ...

AI Technical Summary

Problems solved by technology

[0009] First, as the working time increases, the gas leakage in the pipe cannot be monitored. Since the entire gas port is sealed, it cannot be detected when the entire pipe is out of gas, that is to say, if the pipe air pressure decreases, the performance will decline The entire pipe can only be scrapped because it cannot be disposed of;

[0010] Second, because the anode wire is a thin wire with a diameter of 50 μm, it is easy to break during use. Once broken, the entire drift tube will be useless and cannot be repaired

[0011] Third, the working gas in the tube has a certain life span, beyond a certain working time will affect the test performance, but because the tube is fully sealed, the gas in the tube cannot be replaced

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