Sep 7 – 12, 2014
University of Surrey
GB timezone
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Capacitive Division Image Readout - Rate and resolution measurements using adaptive pulse processing

Sep 11, 2014, 2:00 PM
1h 40m
University of Surrey

University of Surrey

Guildford, UK
Poster Presentation Applications in Astronomy, Planetary and Space Science Session 13: Posters 2 (Astrophysics, Synchroton and other Applications)

Speaker

Mr Steven Leach (University of Leicester)

Description

The Capacitive Division Image Readout (C-DIR) is a novel image readout offering major performance advantages over traditional techniques. C-DIR’s very low electronic noise facilitates a combination of high spatial resolution and high event count rate capability. Coupling the C-DIR with microchannel plate photon counting and utilising a pulse digitisation approach allows the use of adaptive digital filtering to provide optimal, and dynamic, trade-off between count rate and image resolution. This technique enables a single instrument to accommodate scenes with large dynamic range whilst maintaining the ability for very high spatial resolution imaging when desired. We present research results comparing various shaping schemes based on traditional analogue filter techniques that have been digitally implemented versus digital filters. Pulse processing using CR-RC, CR-RCn (semi-Gaussian), trapezoid and moving window deconvolution methods were tested revealing rate, resolution and adaptability performance.

Primary author

Mr Steven Leach (University of Leicester)

Co-authors

Jon Lapington (University of Leicester) Dr Virgil Taillandier (University of Leicester)

Presentation materials

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