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Developing a camera-based 3D momentum imaging system capable of 1 Mhits/s.
Duke A Debrah1, Gabriel A Stewart1, Gihan Basnayake1
1Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
The Review of Scientific Instruments
|March 2, 2020
Summary
This study enhances electron/ion imaging by integrating an event-driven camera (Tpx3Cam) and high-speed digitizer. This boosts the system's event rate to nearly 1 million hits per second for precise 3D imaging.
Area of Science:
- Physics
- Chemistry
- Instrumentation
Background:
- A previous camera-based 3D imaging system offered excellent time-of-flight (TOF) resolution and multi-hit capability for electron/ion detection.
- Further improvements in event rate were sought to enhance the system's performance.
Purpose of the Study:
- To improve the event rate of a 3D electron/ion imaging system.
- To integrate advanced detection technologies for higher data acquisition speeds.
Main Methods:
- Incorporated an event-driven camera, Tpx3Cam, for precise 2D electron position detection.
- Utilized a high-speed digitizer to achieve accurate (∼30 ps) TOF measurements for each event.
Main Results:
- Achieved a significant increase in the system's event rate, approaching 1 million hits per second.
- Maintained highly accurate TOF information (∼30 ps) at the enhanced rate.
Conclusions:
- The upgraded system demonstrates a substantially improved event rate for 3D electron/ion imaging.
- The integration of Tpx3Cam and high-speed digitization enables faster and more precise particle detection.
