Related Experiment Video
Updated: Jul 9, 2025
06:08
Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
8.9K
Time calibration studies for the Timepix3 hybrid pixel detector in electron microscopy
Yves Auad1, Jassem Baaboura1, Jean-Denis Blazit1
1Laboratoire des Physique des Solides, Université Paris Saclay, Orsay, France.
Ultramicroscopy
|December 6, 2023
Summary
This study calibrates the Timepix3 direct electron detector for electron microscopy, achieving a 1.37 ns temporal resolution. It also analyzes cosmic ray tracks to understand temporal response limits based on electron energy and sensor properties.
Area of Science:
- Materials Science
- Physics
- Instrumentation
Background:
- Direct electron detection is transforming electron microscopy with improved noise, point-spread function, and quantum efficiency.
- Timepix3, a hybrid-pixel detector, offers event-based data readout with temporal information for individual electron hits.
Purpose of the Study:
- To calibrate and correct the temporal information of the Timepix3 detector for electron microscopy applications.
- To investigate the factors influencing the detector's temporal response and resolution.
Main Methods:
- Performed energy calibration, time-walk, and pixel delay corrections on the Timepix3 detector.
- Analyzed cosmic ray tracks to study charge dynamics and temporal response variations.
Main Results:
- Achieved an average temporal resolution of 1.37±0.04 ns across the pixel matrix.
- Estimated temporal response uncertainties ranging from 0.8 ns (60 keV electrons) to 8.8 ns (300 keV electrons) due to ionization volume.
Conclusions:
- The calibration and correction methods significantly improve the temporal accuracy of the Timepix3 detector for electron microscopy.
- Understanding charge dynamics and ionization volume effects is crucial for optimizing detector performance at different electron energies.
