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Updated: Jun 17, 2026
09:53
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet (VUV) Synchrotron Radiation
Published on: October 30, 2012
A computer controlled step-scanning vacuum ultraviolet spectrometer for beam foil spectroscopy.
Applied Optics
|January 16, 2010
Summary
This study details a computer interface for a vacuum ultraviolet spectrometer, enhancing data collection and precision. The new system improves spectral reproducibility for advanced scientific analysis.
Area of Science:
- Spectroscopy
- Computer Interfacing
- Instrumentation
Background:
- Traditional spectrometers often lack automated data processing.
- Precise control of grating position is crucial for accurate spectral measurements.
- Integrating computational power can enhance spectrometer performance.
Purpose of the Study:
- To interface a McPherson 225 vacuum ultraviolet spectrometer with an IBM 1130 computer.
- To develop an electronic system for precise grating control.
- To enable digital data recording and analysis.
Main Methods:
- An electronic interface was designed using integrated circuits.
- Computer commands were translated to control a dc synchronous stepping motor for grating positioning.
- Intensity data were recorded digitally onto a magnetic disk and simultaneously on a strip chart recorder.
Main Results:
- The system successfully interfaced the spectrometer with the computer.
- Digital data acquisition and plotting capabilities were established.
- Reproducibility of grating position was achieved within 0.03 Å using a mercury source.
Conclusions:
- Computer interfacing significantly enhances spectrometer functionality.
- The developed system offers improved precision and data handling for vacuum UV spectroscopy.
- This integration facilitates more efficient and accurate spectral analysis.
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