Work

Low-Energy Single-Electron Detector with Submicron Resolution

Year: 2025

Type: article

Abstract: Single-electron detectors are a key component of electron microscopes and advanced electron optics experiments. We present a scintillator-based single-electron detector with an estimated spatial resolution of 0.9 μm at an electron energy of 17 keV. Single-electron detection events are identified with an efficiency and purity larger than 0.8 at an electron energy of 17 keV, reaching 0.96 at 30 keV. We show that the detector enables electron diffraction studies with a sample-detector distance comparable to the mean free path of electrons at atmospheric pressure, potentially enabling atmospheric electron diffraction studies.

Source: ACS Photonics

DOI: 10.1021/acsphotonics.5c02404

Authors: Luis Alfredo Ixquiac Méndez, Martino Zanetti, Tilman Kraeft, Thomas Juffmann

Institutions: University of Vienna, Max Perutz Labs, Vienna Center for Quantum Science and Technology

Language: English

Topic: Advanced Electron Microscopy Techniques and Applications

Subfield: Structural Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: hybrid

Estimated APC paid: $4,500