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Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering
Published on: April 17, 2018
Soft x-ray appearance potential spectroscopy with a channelplate detector
1Naval Surface Weapons Center, White Oak, Silver Spring, Maryland 20910, USA.
The Review of Scientific Instruments
|March 1, 1979
Summary
A new soft x-ray appearance potential spectrometer utilizes a channelplate detector, significantly enhancing sensitivity. This advancement allows for detailed spectral analysis at lower electron currents, improving experimental efficiency.
Area of Science:
- Materials Science
- Surface Science
- Spectroscopy
Background:
- Soft X-ray Appearance Potential Spectroscopy (SXAPS) is a surface-sensitive technique.
- Traditional SXAPS often uses metal photocathode detectors, which have limitations in sensitivity.
Purpose of the Study:
- To describe and evaluate a novel soft x-ray appearance potential spectrometer.
- To assess the performance of a channelplate detector in SXAPS.
Main Methods:
- Development and implementation of a soft x-ray appearance potential spectrometer.
- Utilizing a channelplate detector for enhanced signal detection.
- Evaluation of spectral quality at low primary electron currents.
Main Results:
- The channelplate detector demonstrates significantly higher sensitivity compared to conventional metal photocathodes.
- Useful SXAPS spectra were obtained with primary electron currents below 10 microA.
- Saturation effects at high x-ray fluxes were identified as a limitation.
Conclusions:
- The channelplate detector offers a substantial improvement in sensitivity for SXAPS.
- This technology enables efficient spectral acquisition at reduced electron currents.
- Careful selection of channelplate and geometry can mitigate saturation issues.
