Speaker
Prof.
Sebastian White
(Rockefeller University (US))
Description
Sebastian White, The Rockefeller University, NYC
Richard Farrel, RMD/DYNASIL
Kirk McDonald and Changuo Lu, Princeton University, NJ
Thomas Tsang, BNL Instrumentation Division
Mitch Newcomer, U. Pennsylvania
Since 2007 we have been developing a high timing precision charged particle detector based on the RMD technology. Our primary focus has been on a solution for high rate applications and hence radiation damage effects have been part of our R&D.
The RMD devices have been irradiated in a beam of 72 MeV protons (up to a fluence of 0.5*10^13 n/cm^2. Although QE was degraded and there was an increase in leakage current, as predicted by CMS APD rad dam. scaling laws, performance as a timing detector could be restored to the un-irradiated level by cooling. Recently we have resumed testing at higher fluence in the CERN PS and planning further measurements at FNAL and MGH.
We will report on past results and current plans.
Author
Prof.
Sebastian White
(Rockefeller University (US))
