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A zero dead-time multi-particle time and position sensitive detector based on correlation between brightness and

X Urbain¹, D Bech¹, J-P Van Roy¹

¹Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium.

The Review of Scientific Instruments

|March 2, 2015

Summary

A novel detector system, COBRA (COrrelation between the BRightness and Amplitude), accurately links particle timing and position data. This advancement is demonstrated through experiments involving HeH dissociation, H3 fragmentation, and Xenon photo-double-ionization.

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Area of Science:

Atomic and Molecular Physics
Particle Detection Technology
Physical Chemistry

Background:

Accurate multi-particle detection is crucial for understanding complex atomic and molecular processes.
Existing methods for correlating timing and position information in particle detectors can be complex and limited.
Developing novel, efficient detection schemes is essential for advancing experimental physics.

Purpose of the Study:

To introduce and describe a new multi-particle time and position sensitive detector.
To detail the COBRA (COrrelation between the BRightness and Amplitude) method for correlating timing and position data.
To demonstrate the performance of the COBRA detection scheme through various experimental tests.

Main Methods:

Utilized microchannel plates for timing information acquisition via fast digitization.
Employed a phosphor screen and CMOS camera for recording particle positions.
Implemented the COBRA method, correlating phosphor spot integrated intensity (brightness) with electrical signal amplitude.

Main Results:

Successfully correlated timing data from microchannel plates with position data from the camera.
Demonstrated the detector's capability in observing HeH dissociation.
Showcased performance in analyzing H3 fragmentation and Xenon photo-double-ionization.

Conclusions:

The COBRA detection scheme provides a robust method for multi-particle event reconstruction.
The described detector system offers a promising new tool for atomic and molecular physics research.
Experimental validation confirms the effectiveness of the COBRA approach in diverse physical scenarios.