Spatial Imaging of Chemical Compounds

Velocity Mapping

Coincidence Imaging

Molecular Motion

Tissue Imaging


Fast Scintillators

Direct Ion Detection

Fast Scintillators

Fast scintillator ion image
Ion images of the photodissociation of OCS taken with a commercial P47 detector and the new scintillator.

Ion Imaging applications, like microscope mode imaging mass spectrometry, require fast detection systems. A conventional detector consists of a chevron MCP set and a P47 phosphorscreen. So far, the absolute time resolution of this assembly was limited by the decay time of the P47 screen (100 ns down to 10%).

By employing a newly developed scintillator the time resolution can be reduced to 4 ns (FWHM) for the light emission. The detector is fully vacuum compatible and shows in comparison to a commercial device a high spatial resolution. Applied MCP voltages can be reduced significantly due to a 1.8x higher light output in comparison to P47.

By combining this detector with the PImMS camera any limitations caused by the detector are removed.

Related Publications

  • A fast microchannel plate-scintillator detector for velocity map imaging and imaging mass spectrometry.