WSO/UV-LSS

Detector with large dimension MCP

Baosheng Zhao*

National Astronomical Observatories of CAS* E-mail :open@opt.ac.cn

ContentsResearch Bases

2. Project Demonstration & Design

3. Key Technologies and Research Contents

1. BasesEUV (30.4 nm) Imager Based on WSA Detector - Supported by the Directional Project of Knowledge Innovation Project of Chinese Academy of Sciences

1. BasesSchematic Diagram of the System

Curved MCPCurvature Radius: 70mmEffective Area: 50mmThickness: 0.8~1mm;Gain: 1041. Bases

Patent CertificatePhoto of the Curved MCP

1. BasesThe planar structure sketch, entire and local magnified photos of WSA collector (from left to right)

Schematic of WSA Collector1. Bases

1. BasesGain Distribution

1. Bases

Image of Dark-countGain Distribution of Dark-count

1. BasesImaging Result in our lab

1. Bases10241024,spatial resolution superior to 150m(a)Used WSA;(b)used CCD Camera

200 m

200 m

150 m

150 m

200 m

150 m

150 m

200 m

Photocathode: CsIUV Image Intensifier(110~200nm)1. Bases

2. Project Demonstration & DesignRequirements of the spacial weak UV detecting:1) Solar Blind;2) Photon Counting Mode;3) High Detecting Quantum Efficiency;4) High Local Dynamic Range.

2. Project Demonstration & DesignDetecting Wavelength Range: 110nm-320nmPhotocathode: 110nm-175nm, CsI 170nm-320nm, CsnTeSchematic of the Detector

dimension :150X50X40(mm3)Input dimension:106X6(mm2)Spatial resolution:40m2. Project Demonstration & DesignRectangle Profile of Detector

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2. Project Demonstration & DesignProfile of Detector

2. Project Demonstration & DesignTechnics of Vacuum Shell

2. Project Demonstration & DesignTechnics of Mg2F Window

2. Project Demonstration & DesignWSA Collector Design1) MCP Ge Layer WSA Collector2) MCP WSA CollectorDesign Draft of the WSA Collector

Curved MCP2. Project Demonstration & DesignKey Technological IndexesEffective Area: 1066 mm2Size: 11212 mm2Gain: 104Pore Diameter: 12.5 micronRatio of Length to Diameter : 40:1Thickness: 0.5 mmResistance: 4080MCurvature Radius: 1000mm

2. Project Demonstration & DesignPhotocathodea) 100175nm photocathodeb) 170320nm photocathodeCsICs2Te

2. Project Demonstration & DesignElectronic Readout Subsytem

Input/Output

High quantum efficiency and large format photocathode preparation technology;Cylinder MCP preparation technology;High resolution WSA electron collector preparation technology;High voltage power supply with low ripple and high stability and control circuit technology;Low noise charge sensitive preamplifier, pulse shaping circuit, sample and hold circuit, AD convertor, DSP and FPGA digital technologies;Detector calibration technology.3. Key technologies and research contentsKey technologies

LSS detector scheme;Detector structure design;Detector electro-optical system design;Spherical (curved) surface MCP manufacture;WSA structure design;Detector electron read-out system design;High voltage power supply design with high stability and low ripple;Auto gain control circuit system design for high voltage power supply;Detector system calibration.3. Key technologies and research contentsResearch contents

Thank you for your attention!