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Double-barreled and Concentric Microelectrodes for Measurement of Extracellular Ion Signals in Brain Tissue

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Published on: September 5, 2015

Multichannel (e,2e) apparatus.

J H Moore¹, M A Coplan, T L Skillman

¹Chemistry Department and Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742, USA.

The Review of Scientific Instruments

|April 1, 1978

Summary

This summary is machine-generated.

This study introduces a new apparatus for electron impact ionization (e,2e) experiments. It enables 25 simultaneous measurements, improving data reliability by minimizing temporal variations.

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Area of Science:

Atomic and Molecular Physics
Quantum Mechanics
Electron Spectroscopy

Background:

Electron impact ionization (e,2e) experiments are crucial for understanding electron dynamics in atoms and molecules.
Previous (e,2e) setups often limited the number of simultaneous measurements, affecting data consistency.
Temporal variations in source conditions can introduce uncertainties in experimental results.

Purpose of the Study:

To develop an innovative apparatus for the coincident observation of both outgoing electrons in (e,2e) experiments.
To enhance the efficiency and reliability of (e,2e) measurements.
To enable simultaneous data acquisition from multiple detector pairs.

Main Methods:

The apparatus utilizes ten detectors strategically arranged for coincident electron detection.
Each detector pair is configured to capture specific sets of outgoing electron momenta.
Simultaneous monitoring of all ten detectors allows for parallel data collection.

Main Results:

The developed apparatus facilitates 25 simultaneous (e,2e) experiments.
This multi-experiment capability allows for direct comparison of results.
The design minimizes the impact of temporal variations in source conditions on data integrity.

Conclusions:

The new apparatus significantly advances the capabilities of (e,2e) spectroscopy.
It offers a more robust and efficient method for studying electron dynamics.
The ability to perform numerous simultaneous experiments enhances data reliability and comparability.