Artículos de revistas
A dedicated setup for the measurement of the electron transport parameters in gases at large electric fields
Fecha
2010Registro en:
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.613, n.1, p.40-45, 2010
0168-9002
10.1016/j.nima.2009.11.019
Autor
FONTE, P.
Mangiarotti, Alessio
Botelho, Suzana
GONCALVES, J. A. C.
Ridenti, Marco Antonio
Bueno, Carmen Cecília
Institución
Resumen
Electron transport parameters are important in several areas ranging from particle detectors to plasma-assisted processing reactors. Nevertheless, especially at high fields strengths and for complex gases, relatively few data are published. A dedicated setup has been developed to measure the electron drift velocity and the first Townsend coefficient in parallel plate geometry. An RPC-like cell has been adopted to reach high field strengths without the risk of destructive sparks. The validation data obtained with pure Nitrogen will be presented and compared to a selection of the available literature and to calculations performed with Magboltz 2 version 8.6. The new data collected in pure Isobutane will then be discussed. This is the first time the electron drift velocity in pure Isobutane is measured well into the saturation region. Good agreement is found with expectations from Magboltz. (C) 2009 Elsevier B.V. All rights reserved.