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arXiv · 1008.4075

Ionization signals from electrons and alpha-particles in mixtures of liquid Argon and Nitrogen - perspectives on protons for Gamma Resonant Nuclear Absorption applications

M. Zeller·I. Badhrees·S. Delaquis·A. Ereditato·S. Janos·I. Kreslo·M. Messina·U. Moser·B. Rossi
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Abstract

In this paper we report on a detailed study of ionization signals produced by Compton electrons and alpha-particles in a Time Projection Chamber (TPC) flled with different mixtures of liquid Argon and Nitrogen. The measurements were carried out with Nitrogen concentrations up to 15% and a drift electric feld in the range 0-50 kV/cm. A prediction for proton ionization signals is made by means of interpolation. This study has been conducted in view of the possible use of liquid Ar-N2 TPCs for the detection of gamma-rays in the resonant band of the Nitrogen absorption spectrum, a promising technology for security and medical applications.

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M. Zeller, I. Badhrees, S. Delaquis, A. Ereditato, S. Janos, I. Kreslo, M. Messina, U. Moser, B. Rossi. 2010-08-24. Ionization signals from electrons and alpha-particles in mixtures of liquid Argon and Nitrogen - perspectives on protons for Gamma Resonant Nuclear Absorption applications. https://doi.org/10.1088/1748-0221/5/10/p10009

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