Developing a camera-based 3D momentum imaging system capable of 1 Mhits/s

Duke A Debrah; Gabriel A Stewart; Gihan Basnayake; Andrei Nomerotski; Peter Svihra; Suk Kyoung Lee; Wen Li

doi:10.1063/1.5138731

Developing a camera-based 3D momentum imaging system capable of 1 Mhits/s

Rev Sci Instrum. 2020 Feb 1;91(2):023316. doi: 10.1063/1.5138731.

Authors

Duke A Debrah¹, Gabriel A Stewart¹, Gihan Basnayake¹, Andrei Nomerotski², Peter Svihra², Suk Kyoung Lee¹, Wen Li¹

Affiliations

¹ Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
² Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA.

PMID: 32113393
DOI: 10.1063/1.5138731

Abstract

A camera-based three-dimensional (3D) imaging system with a superb time-of-flight (TOF) resolution and multi-hit capability was recently developed for electron/ion imaging [Lee et al. J. Chem. Phys. 141, 221101 (2014)]. In this work, we report further improvement of the event rate of the system by adopting an event-driven camera, Tpx3Cam, for detecting the 2D positions of electrons, while a high-speed digitizer provides highly accurate (∼30 ps) TOF information for each event at a rate approaching 1 Mhits/sec.