| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10716061 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 5 Pages |
Abstract
A measurement system for ionisation chamber currents below 1Â nA is presented. The system is based on a standard capacitor charging technique, and uses a commercially available electrometer and air-gap capacitor. We find that the uncertainties in the current range 100Â fA-1Â nA are up to an order of magnitude better than those available from a state-of-the-art commercial electrometer alone.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
S.P. Giblin, E. Bakshandier, N.E. Fletcher, K.J. Lines, J.P. Sephton,