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GEM Readout using EMCCD: Test Facility Development

Explore preliminary GEM testing with CCD97 EMCCD in the Brunel facility. Detailed discussion on EMCCD operation, characteristics, and testing parameters. Acknowledgements to collaborators.

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GEM Readout using EMCCD: Test Facility Development

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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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