| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1827043 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 8 Pages |
Abstract
Using a thin-gap liquid argon ionization chamber and Strontium-90 beta sources we have measured ionization currents over a wide range of gap potentials. These precision “HV plateau curves” advance the understanding of liquid argon sampling calorimeter signals, particularly at high ionization rates. The order of magnitude differences in the activities of the beta sources allow us to estimate where the ionization chamber is driven into the space-charge dominated regime.
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Authors
B. Toggerson, A. Newcomer, J. Rutherfoord, R.B. Walker,