Quality Control of Image Sensors using Gaseous Tritium Light Sources

TL;DR

This paper introduces a practical, reproducible method for calibrating image sensors using gaseous tritium light sources, enabling accurate measurement of sensor parameters like quantum efficiency with simple, inexpensive equipment.

Contribution

The paper presents a novel calibration technique utilizing gaseous tritium sources, which is easy to implement and suitable for various image sensors.

Findings

Effective calibration of quantum efficiency achieved

Method is cost-effective and easily reproducible

Applicable to microscopy and optical laboratories

Abstract

We propose a practical method for radiometrically calibrating cameras using widely available gaseous tritium light sources (betalights). Along with the gain(conversion factor) and read noise level, the predictable photon flux of the source allows us to gauge the quantum effciency. The design is easily reproducible with a 3D printer and three inexpensive parts. Suitable for common image sensors, we believe that the method has the potential to be a useful tool in microscopy facilities and optical labs alike.