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Reliable Spectroradiometry

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Reliable Spectroradiometry

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  • Author: Zbigniew "ZB" Drozdowicz
Reliable spectroradiometry takes a lifetime of work and attention to master. Unreliable spectroradiometry is much easier to accomplish. All it takes is missing a single critical point, like the interdependence of source time variation and detection system bandwidth or the source spectral bandwidth and instrument chromatic properties. Consider the task of measuring the spectral content of output irradiance from a solar simulator. The key elements of a typical solar simulator include a xenon high-pressure arc lamp, an elliptical reflector, and an optical integrator, which, jointly with the collimating lens, produces a uniform illumination area at the working plane of the device.

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