Speaker
Dr
Jon Howorth
(Photek Limited)
Description
This paper reviews recent developments in imaging photomultiplier technology.
Recent developments have significantly advanced the time resolution limits of MCP based photomultipliers; this is of particular importance for applications in nuclear physics. For example, PMTs are used for Gamma Reaction History at Omega and similar experiments. Since 2004,PMT diagnostic capability has improved from 224ps to less than 100ps.The response times of various models are shown and we show the response of a new 400mm tube
For neutron diagnostics, we have improved the gating (high speed switch on/off) to discriminate between neutrons and gamma-rays. These are characterized at Photek by walking a fast laser pulse through the gate,which can now achieve switching times approaching 3ns.
We are also developing fast read-out systems based on CERN chips developed for ALICE, which are intended for life science applications such as fluorescence lifetime imaging.
Author
Dr
Jon Howorth
(Photek Limited)
Co-authors
Dr
Gareth Jones
(Photek Limited)
Dr
Ian Cox
(Photek Limited)
