| Texto completo | |
| Autor(es): |
Roque, R. C.
[1]
;
Natal da Luz, H.
[2]
;
Carramate, L. F. N. D.
[3]
;
Azevedo, C. D. R.
[3]
;
Mir, J. A.
[1]
;
Amaro, F. D.
[1]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Coimbra, LIBPhys Dept Phys, Rua Larga, Coimbra - Portugal
[2] Univ Sao Paulo, Inst Fis, Rua Matao 1371, Sao Paulo - Brazil
[3] Univ Aveiro, Phys Dept I3N, Campus Univ Santiago, Aveiro - Portugal
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Instrumentation; v. 12, DEC 2017. |
| Citações Web of Science: | 1 |
| Resumo | |
The operation of a Micropattern Gaseous Detector (MPGD) comprising a cascade of two non-standard Gas Electron Multipliers (GEM) made from a 100 mu m kapton foil was evaluated in pure krypton and in krypton-CO2 mixtures. The final avalanche charge was collected in a 2D strip readout, providing an active area of 10 x 10 cm(2) for the entire detection system. For each mixture, the effective gain and energy resolution were measured as a function of the electric field in the drift, transfer and induction regions. Using X-rays from a Fe-55 radioactive source (5.9 keV), gains close to 10(4) and energy resolution of 22% (FWHM) were achieved in pure krypton under stable conditions, showing the potential of the experimental setup for the following imaging studies. (AU) | |
| Processo FAPESP: | 16/05282-2 - Desenvolvimento e aplicações de detectores gasosos baseados em microestruturas |
| Beneficiário: | Pedro Hugo Ferreira Natal da Luz |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |