Study of scintillation light from microstructure based detectors

Author

Fraga, M.M. ; Fetal, S.T.G. ; Fraga, F.A.F. ; Antunes, E. ; Goncalves, Joaquim ; Bueno, C.C. ; Marques, R. Ferreira ; Policarpo, A.J.P.L.

Author_Institution

Dept. de Fisica, Coimbra Univ., Portugal

Volume

47

Issue

3

fYear

2000

fDate

6/1/2000 12:00:00 AM

Firstpage

933

Lastpage

938

Abstract

In a previous work it has been pointed out that a CCD readout system associated to a microstructure based gaseous detector (microstrip, microgap, GEM, etc.) can be used for non destructive testing of these detectors. The choice of the gas mixture is an important issue, in so far as its emission spectrum should overlap efficiently the sensitivity region of the CCD (400-1100 nm). In the present work we report on a systematic study for several gas mixtures which includes measurements of the total light yields as a function of the electric field and of the spectrometric distribution of the light emitted, in the wavelength region between 250 and 930 nm. Results are presented for pure argon and argon and xenon based gas mixtures. A comparison is made between the results obtained with the CCD coupled to a GEM detector and with a gaseous scintillation proportional counter

Keywords

gas mixtures; position sensitive particle detectors; proportional counters; scintillation; CCD readout system; GEM detector; emission spectrum; gas mixture; gaseous scintillation proportional counter; microstructure based detectors; microstructure based gaseous detector; scintillation light; spectrometric distribution; Argon; Charge coupled devices; Electric variables measurement; Microstrip; Microstructure; Solid scintillation detectors; Spectroscopy; System testing; Wavelength measurement; Xenon;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.856721

Filename

856721