Calibration setup for ultralow-current transresistance amplifiers
Ilaria Finardi, Luca Callegaro
TL;DR
This paper presents a simple, robust calibration setup for ultralow-current transresistance amplifiers using capacitance-charging, achieving traceability and high accuracy suitable for electron counting experiments.
Contribution
It introduces a practical calibration method based on capacitance-charging, with traceability to capacitance and time, suitable for integration into larger experimental setups.
Findings
Calibration accuracy in the 10^-5 range
Traceability to capacitance and time units
Suitable for electron counting experiments
Abstract
We describe a calibration setup for the transresistance of low-current amplifiers, based on the capacitance-charging method. The calibration can be performed in the current range of typical interest for electron counting experiments. The setup implementation is simple and rugged, and is suitable to be embedded in larger experiments where the amplifier is employed. The calibration is traceable to units of capacitance and of time. The base relative accuracy of the implementation is in the 10^-5 range.
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Taxonomy
TopicsElectrochemical Analysis and Applications · Analytical Chemistry and Sensors · Atomic and Subatomic Physics Research