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

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.