Speaker
Alexis Mulski
(University of Michigan)
Description
Plasma panel detectors are a variant of micropattern detectors that are sensitive to ionizing radiation. They are motivated by the design and operation of plasma display panels. The detectors consist of arrays of electrically and optically isolated pixels defined by metallized cavities embedded in a dielectric substrate. These are hermetically sealed gaseous detectors that use exclusively non-hydrocarbon gas mixtures. The newest variant of these “closed-architecture” detectors is known as the Microhexcavity plasma panel detector (µH-PPS), consisting of 2 mm wide, regular close-packed hexagonal pixels each with a circular thin-film anode. The fabrication, staging, and operation of these detectors is described. Initial tests with the µH-PPS detectors operated in Geiger mode yield Volt-level signals in the presence of ionizing radiation. The spontaneous discharge rate in the absence of a source is roughly 2-3 orders of magnitude lower compared to the rates measured using low energy betas.
Primary authors
Alexis Mulski
(University of Michigan)
Daniel S. Levin
(University of Michigan Department of Physics)
Co-authors
Achintya Das
(Tel Aviv University School of Physics and Astronomy)
Claudio Ferretti
(University of Michigan Department of Physics)
David Reikher
(Tel Aviv University School of Physics and Astronomy)
Erez Etzion
(CERN)
John W. Chapman
(University of Michigan Department of Physics)
Meny Raviv-Moshe
(Tel Aviv University School of Physics and Astronomy)
Michael D. Ausilio
(University of Michigan Department of Physics)
Nicholas Ristow
(University of Michigan Department of Physics)
Peter S. Friedman
(Integrated Sensors, LLC)
Ralf Bejko
(University of Michigan Department of Physics)
Yan Benhamou
(Tel Aviv University School of Physics and Astronomy)