Calibration and Interpixel Capacitance of a H2RG(2Kx2K) Near-IR Detector

TL;DR

This paper presents a precise calibration of a H2RG near-IR detector, including noise analysis, non-linearity correction, and an extended correlation method to measure interpixel capacitance with high accuracy.

Contribution

It introduces an extended correlation method for interpixel capacitance measurement and achieves sub-percent accuracy in calibration.

Findings

Interpixel capacitance x = -0.0263 +/- 0.0020 (stat) +/- 0.0040 (syst)

Noise analysis and non-linearity corrections improve measurement precision

All measurements are consistent within sub-percent accuracy.

Abstract

A temporal analysis of the noise is performed, and non linearities are taken into account. We then extend the correlation method to groups of several pixels to derive the interpixel capacitance of a detector, found to be x = -0.0263 +/- 0.0020 (stat) +/- 0.0040 (syst). All measurements are consistent to a sub-percent accuracy.