3-8 September 2017
The Open University, Milton Keynes, UK.
Europe/London timezone

The Capacitive Division Image Readout - Development and Experimental Results

5 Sep 2017, 09:00
20m
Berrill Lecture Theatre (OU) ()

Berrill Lecture Theatre (OU)

The Open University, Walton Hall, Milton Keynes, MK7 6AA

Speaker

Jon Lapington (University of Leicester)

Description

The Capacitive Division Image Readout (C-DIR) is a charge centroiding device for imaging microchannel plate detectors. It comprises a two-dimensional matrix of capacitively coupled electrodes which divide the event charge between four charge measurement nodes. C-DIR’s capacitive nature maintains the bandwidth of the fast MCP signal for event timing applications and places a low capacitive load on the measurement electronics. The combination of these qualities provides an enhanced image resolution/time resolution performance envelope compared with traditional centroiding readout devices such as the resistive anode or wedge and strip anode.
We present experimental performance of the C-DIR in a microchannel plate detector and compare results with theory. We describe developments to the C-DIR design and electronics configuration to optimise spatial resolution, temporal resolution and linearity. We discuss the application of capacitive division centroiding to a 2D discrete pixel array with multichannel electronics to provide sub-pixel spatial resolution with parallel event processing for very high throughput.

Primary authors

Jon Lapington (University of Leicester) Steve Leach (U)

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