Studies of Gaseous Multiplication Coefficient in Isobutane

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Lima, Iara B. ; Vivaldini, Tulio C. ; Goncalves, Josemary A. C. ; Botelho, Suzana ; Ridenti, Marco A. ; Fonte, Paulo ; Mangiarotti, Alessio ; Pascholati, Paulo R. ; Bueno Tobias, Carmen C. ; Deppman, A ; Krug, C ; Zahn, GS ; Lubian, J ; Added, N ; Timoteo, VS

• Tipo de documento: Artigo Científico
• Fonte: MAGNETIC FIELDS IN THE UNIVERSE: FROM LABORATORY AND STARS TO PRIMORDIAL STRUCTURES; v. 1245, p. 2-pg., 2010-01-01.

Resumo

This work presents the studies of gaseous multiplication coefficient behavior for isobutane, as function of the reduced electric field, by means of signal amplitude analysis. The experimental method used is based on the Pulsed Townsend technique, which follows from Townsend equation solution for a uniform electric field. In our configuration, the anode is made of a high resistivity (2.10(12) Omega.cm) glass, while the cathode is of aluminium. In order to validate the technique and to analyze effects of non-uniformity, results for nitrogen, which has wellestablished data available in literature, are also presented. (AU)

• Processo FAPESP: 07/06773-0 - Medidas do coeficiente de multiplicação gasosa no isobutano puro
• Beneficiário: Iara Batista de Lima
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 07/06771-8 - Medidas de velocidade de arrastamento de elétrons no isobutano puro
• Beneficiário: Túlio Cearamicoli Vivaldini
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 02/04697-1 - Medidas de parâmetros de transporte de elétrons em gases em regime de multiplicação
• Beneficiário: Carmen Cecília Bueno
• Modalidade de apoio: Auxílio à Pesquisa - Regular