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GEM readout using an EMCCD: Test facility development and preliminary study

GEM readout using an EMCCD: Test facility development and preliminary study. Dr David Ryan Smith Centre for Sensors and Instrumentation School of Engineering and Design Brunel University. Talk Overview. GEM readout using an EMCCD The CCD97 EMCCD The Brunel EMCCD Test Facility

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GEM readout using an EMCCD: Test facility development and preliminary study

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  1. GEM readout using an EMCCD:Test facility development and preliminary study Dr David Ryan Smith Centre for Sensors and Instrumentation School of Engineering and Design Brunel University

  2. Talk Overview • GEM readout using an EMCCD • The CCD97 EMCCD • The Brunel EMCCD Test Facility • Preliminary GEM Testing • Discussion

  3. The CCD97 EMCCD • Initially developed for night vision and security applications • Use the principle of electron avalanche multiplication to greatly improve the visibility of faint objects

  4. The CCD97 EMCCD

  5. The CCD97 EMCCD • Extensive experience with EMCCD operation and characterisation: • dedicated vacuum, cryogenic test facilities for optical / X-ray characterisation of CCDs over a wide range of temperatures • involvement with radiation qualification of EMCCDs for use in space • characterisation of high-resistivity EMCCDs giving greater signal gain at lower voltages

  6. The EMCCD Test Facility

  7. Preliminary GEM Testing • Section of GEM clamped to CCD • White LED used to provide illumination

  8. Room Temperature (no GEM)

  9. Room Temperature (with GEM)

  10. Operating Cold • -100 oC • Room Temperature

  11. Discussion • Parameters for investigation: • Pixel readout rate • Illumination geometry • Temperature • Testing in argon • Testing with GEM operational • System requirements: • Energy resolution? • Spatial resolution? • Readout rate? • Temperature? • Image size?

  12. Acknowledgements • Gary Barker from Warwick University for providing the GEM array • e2v technologies for provision of the EMCCD used in the presented study

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