Dr Albert Lehmann (Universität Erlangen-Nürnberg)
2/17/16, 11:30 AM
Microchannel plate (MCP) PMTs are very attractive photon sensors for low light level applications in B-fields. However, until recently the main drawback of MCP-PMTs was their aging behaviour which manifests itself in a limited lifetime due to a rapidly decreasing quantum efficiency (QE) of the photo cathode (PC) as the integrated anode charge (IAC) increases. In the latest models of PHOTONIS,...
Luka Santelj (High Energy Accelerator Research Organization (KEK))
2/17/16, 11:55 AM
For the Belle II spectrometer a proximity focusing RICH counter with an aerogel radiator (ARICH) will be employed as a PID system in the forward endcap region of the spectrometer. The main challenge during ARICH R&D was a reliable multichannel sensor for single photons that operates in the high magnetic field of the spectrometer (1.5 T) and withstands the radiation levels expected at the...
David Hitlin (Caltech)
2/17/16, 12:20 PM
In order to take advantage of the very fast scintillation component of barium fluoride (decay time 0.9 ns at 220 nm) it is necessary to have a fast photosensor with high efficiency in the UV that is also able to discriminate against the larger slow (decay time 650ns at 300 nm) scintillation component. We have developed a large area avalanche photodiode photosensor that has high quantum...