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Performance of Large Area Picosecond Photo-Detectors (LAPPDTM)

2019; Elsevier BV; Volume: 958; Linguagem: Inglês

10.1016/j.nima.2019.162834

1872-9576

A. Lyashenko, Bernhard W. Adams, Melvin Aviles, Till Cremer, Camden Ertley, Michael R. Foley, Michael J. Minot, M. Popecki, Michael E. Stochaj, W. Worstell, Jeff Elam, Anil U. Mane, O. H. W. Siegmund, Henry J. Frisch, A. Elagin, E. Angelico, Eric Spieglan,

Neutrino Physics Research

We report on performance results achieved for recently produced LAPPDs - largest comercially available planar geometry photodetectors based on microchannel plates. These results include electron gains of up to $10^{7}$, low dark noise rates ($\sim$100 Hz/cm$^{2}$ at a gain of $6\cdot10^6$), single photoelectron (PE) timing resolution of $\sim$50 picoseconds RMS (electronics limited), and single photoelectron spatial resolution along and across strips of 3.2mm (electronics limited) and 0.8 mm RMS respectively and high (about 25\% or higher in some units) QE uniform bi-alkali photocathodes. LAPPDs is a good candidate to be employed in neutrino experiments (e.g. ANNIE, WATCHMAN, DUNE), particle collider experiments (e.g. EIC), neutrinoless double-beta decay experiments (e.g. THEIA), medical and nuclear non-proliferation applications.