Large-area X-ray gas detector

US10473795B2 · kind B2 · utility

Assignee

• NUCTECH COMPANY LIMITED · CN

Inventors

• Yongqiang Wang · Shanghai, CN
• Qingjun Zhang · Beijing, CN
• Yuanjing Li · Beijing, CN
• Ziran Zhao · Beijing, CN
• Lifeng Sun · Lo Wu, CN
• Nan BAI · Beijing, CN
• Xingliang ZHAI · Beijing, CN

Key dates

• Filing date: Jul 3, 2018
• Grant date: Nov 12, 2019
• Expiry date: Jul 3, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V5/222
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A large-area X-ray gas detector includes a housing having an inner cavity and a ray entrance communicated with the inner cavity, a thin entrance window and a signal collection module. The inner cavity is filled with a working gas which is a non-electronegativity gas sensitive to the X-ray. The entrance window is hermetically connected to the ray entrance such that the X-ray enters into the inner cavity. The signal collection module comprises 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. The anode wire electrode layer collects electrons generated by the working gas under an action of the X-ray.