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Ultraviolet photon counting detector with position readout circuit

A technology of counting detectors and readout circuits, applied in the field of ultraviolet detection, can solve problems such as bulky volume and high cost, and achieve the effects of high spatial resolution, convenient operation, and meeting application requirements.

Inactive Publication Date: 2015-01-28
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, it is expensive and bulky

Method used

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  • Ultraviolet photon counting detector with position readout circuit
  • Ultraviolet photon counting detector with position readout circuit
  • Ultraviolet photon counting detector with position readout circuit

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Embodiment Construction

[0022] Invention idea of ​​the present invention is:

[0023] The ultraviolet photon counting detector with position readout circuit of the present invention comprises:

[0024] Multi-channel pulse acquisition and position readout circuit system, including the charge sensitive amplification module, filter shaping module, peak hold module of the analog circuit part, and the analog-to-digital conversion (A / D) module, data transmission speed matching module of the digital circuit part, USB data reading and writing module, software decoding calculation module, software imaging module.

[0025] There are 9 charge-sensitive amplifiers, which are respectively used to receive the induced charge output by each electrode of the anode of the ultraviolet detector and convert it into a voltage signal. Obtain a high-impedance, low-noise signal for processing and collection by subsequent circuits.

[0026] The filter shaping module is used to adjust the waveform of the voltage signal conve...

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Abstract

The invention relates to an ultraviolet photon counting detector with a position readout circuit. The ultraviolet photon counting detector includes a multi-path pulse acquisition and position readout circuit system; and the multi-path pulse acquisition and position readout circuit system includes a charge sensitivity amplification module, a filtering and shaping module and a peak value holding module of an analog circuit part as well as an analog-to-digital version module, a USB data read-write module and a software imaging system of a digital circuit part. The ultraviolet photon counting detector with the position readout circuit of the invention has the advantages of simple structure, small size, portable convenience, convenient operation and high spatial resolution, and can meet the application requirements of deep space exploration and ultraviolet optical spectrum instruments.

Description

technical field [0001] The invention belongs to the technical field of ultraviolet detection, and relates to an ultraviolet photon counting detector with a position readout circuit, which is an ultraviolet photon counting detector. Background technique [0002] At present, two-dimensional position-sensitive photon counting imaging detectors in the ultraviolet band using microchannel plates (MCPs) have been widely used in fields such as space astronomy, deep space exploration, and photoelectric countermeasures. The photon counting imaging detector works in the range of 10nm to 280nm, and is used to detect and image the weak radiation signal of the earth's plasma layer. Common position sensitive anodes include wedge strip (WSA) anode, delay line anode (XDL) and Vernier anode. Among them, the resolution of the UV photon counting detector based on the Vernier anode can reach several microns, and the counting rate is as high as hundreds of kcps, which has important application p...

Claims

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Application Information

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IPC IPC(8): G05B19/042G01T1/24
CPCG05B19/0428G01T1/24G05B2219/2612G05B2219/2656
Inventor 尼启良张凯赵爱荣
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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