| Full text | |
| Author(s): |
Lima, I. B.
[1]
;
Mangiarotti, A.
[2, 3]
;
Vivaldini, T. C.
[1]
;
Goncalves, J. A. C.
[1, 4]
;
Botelho, S.
[4]
;
Fonte, P.
[5]
;
Takahashi, J.
[6]
;
Tarelho, L. V.
[1]
;
Bueno, C. C.
[1, 4]
Total Authors: 9
|
| Affiliation: | [1] IPEN CNEN SP, BR-05508000 Sao Paulo - Brazil
[2] Univ Coimbra, Dept Fis, Lab Instrumentacao & Fis Expt Particulas, P-3004516 Coimbra - Portugal
[3] Univ Coimbra, Fac Ciencias & Tecnol, Dept Fis, P-3004516 Coimbra - Portugal
[4] Pontificia Univ Catolica Sao Paulo, Dept Fis, BR-01303050 Sao Paulo - Brazil
[5] Inst Super Engn Coimbra, P-3030199 Coimbra - Portugal
[6] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SP; v. 670, p. 55-60, APR 1 2012. |
| Web of Science Citations: | 7 |
| Abstract | |
In this work we present results of the first Townsend coefficient (alpha) in pure isobutane by measuring the current growth as a function of the electric field strength in a pulsed irradiation regime. A Resistive Plate Chamber (RPC)-like configuration was used. To validate this method, as well as to crosscheck the experimental apparatus, measurements of the alpha parameter were firstly carried out with pure nitrogen and the results compared to the accurate data available in the literature. The data obtained with isobutane in a field range from 145 Td up to 200 Td were well-matched to those calculated with Magboltz versions 2.7.1 and 2.8.6. The experimental consistency of these results with other published data in the range of 550-1300 Td was very good, as demonstrated by the use of the Korff parameterization. (C) 2012 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 07/50591-4 - Alessio Mangiarotti | University of Coimbra - Portugal |
| Grantee: | Carmen Cecília Bueno |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |