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Instrument Calibration

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Related Experiment Video

Updated: Jun 3, 2026

Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron

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Published on: June 9, 2016

[Study on the characteristics of the imaging spectrometer calibration using diffuser method].

Chun-Lei Zhang¹, Yang Xiang

¹State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. zcll_1981@126.com

Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu

|March 25, 2011

Summary

This summary is machine-generated.

A new white diffuser method calibrates imaging spectrometers with high accuracy. Slit orientation significantly impacts spectral radiometric calibration, affecting signal electron collection based on pixel position relative to the light source.

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Area of Science:

Optical Engineering
Spectroscopy
Radiometry

Context:

Accurate spectral radiometric calibration is crucial for imaging spectrometers.
Traditional calibration methods can be complex and less accurate.
A novel white diffuser calibration technique offers improved performance.

Purpose:

To deduce the expression for collected signal electrons in imaging spectrometer detector pixels.
To numerically analyze spectral radiometric calibration characteristics under different slit orientations.
To investigate the effect of slit direction on calibration accuracy.

Summary:

The study derived expressions for signal electron numbers in imaging spectrometer detector pixels using a white diffuser calibration method.
Numerical analysis revealed that the slit's orientation (parallel or perpendicular to the meridional plane) significantly influences spectral radiometric calibration.
When the slit is parallel, signal electron numbers vary with pixel position; when perpendicular, they remain consistent.

Impact:

This research highlights the critical role of slit orientation in achieving accurate spectral radiometric calibration.
The findings provide essential insights for optimizing imaging spectrometer calibration procedures.
The white diffuser method demonstrates potential for enhanced calibration accuracy and ease of implementation.