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Sep 7 – 12, 2014
University of Surrey
GB timezone
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PImMS2, a CMOS event-triggered time-stamping image sensor with storage of multiple timestamps

Sep 11, 2014, 8:50 AM
AP1&2 (University of Surrey)


University of Surrey

Guildford, UK
Oral Paper Advances in Pixel Detectors and Integration Technologies Session 11: Pixel Detectors and Integration Technologies


Jaya John John (University of Oxford)


PImMS, or Pixel Imaging Mass Spectrometry, is a family of high-speed monolithic CMOS imaging sensors tailored to the requirements of mass spectrometry and related fields. PImMS pixels each compare step events of collected charge to an adjustable threshold, storing up to four significant events inside the pixel as 12-bit timestamps with time bin durations down to 12.5ns (80MHz). The pixels may be individually trimmed to improve the uniformity of response. The pixels measure 70µm by 70µm and each contain over 600 transistors. PImMS2 is the second generation of these sensors, providing a larger sensor area with 324 by 324 pixels and new features. We will present an overview of the pixel and sensor architecture, recent characterisation results for PImMS2 and application results for PImMS1 and PImMS2.

Primary author

Jaya John John (University of Oxford)


Dr Andrei Nomerotski (Brookhaven National Laboratory) Prof. Claire Vallance (University of Oxford) Dr Daniel Pooley (STFC Rutherford Appleton Laboratory) Mr Iain Sedgwick (STFC Rutherford Appleton Laboratory) Mr Jason Lee (University of Oxford) Prof. Mark Brouard (University of Oxford) Dr Renato Turchetta (STFC - Rutherford Appleton Lab. (GB)) Dr Richard Nickerson (University of Oxford (GB)) Dr Todd Brian Huffman (University of Oxford (GB))

Presentation materials