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Development and operation of a high-throughput accurate-wavelength lens-based spectrometer
1Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
The Review of Scientific Instruments
|November 29, 2014
Summary
A new high-throughput spectrometer was developed for charge exchange recombination spectroscopy and general spectroscopy applications. This advanced instrument offers automated control and precise measurements across a 400-820 nm wavelength range.
Area of Science:
- Spectroscopy
- Optical Engineering
- Instrumentation
Background:
- Charge exchange recombination spectroscopy (CXRS) requires high-performance spectrometers.
- General spectroscopy applications demand versatile and accurate instruments.
Purpose of the Study:
- To develop a high-throughput spectrometer for CXRS and general spectroscopy.
- To achieve precise wavelength measurements and automated operation.
Main Methods:
- Utilized a large 2160 mm(-1) grating with fast f/1.8 200 mm lenses for stigmatic imaging.
- Incorporated a precision optical encoder for accurate grating angle measurement (≤0.075 arc sec).
- Employed a high quantum efficiency, low-etaloning CCD detector for extended wavelength operation.
Main Results:
- Developed a spectrometer covering the 400-820 nm wavelength range.
- Achieved precise optical measurements and stigmatic imaging.
- Enabled automated control of wavelength, timing, f-number, and data collection.
Conclusions:
- The developed spectrometer is suitable for high-throughput CXRS and general spectroscopy.
- The instrument's design ensures accuracy, automation, and versatility.
- This spectrometer advances capabilities in spectroscopic analysis.
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