Study of scintillation light from microstructure based detectors

Citation
Mm. Fraga et al., Study of scintillation light from microstructure based detectors, IEEE NUCL S, 47(3), 2000, pp. 933-938
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
ISSN journal
0018-9499 → ACNP
Volume
47
Issue
3
Year of publication
2000
Part
2
Pages
933 - 938
Database
ISI
SICI code
0018-9499(200006)47:3<933:SOSLFM>2.0.ZU;2-8
Abstract
In a previous work it has been pointed out that a CCD readout system associ ated to a microstructure based gaseous detector (microstrip, microgap, GEM, etc.) can be used for non destructive testing of these detectors. The choi ce of the gas mixture is an important issue, in so far as its emission spec trum 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 m ixtures which includes measurements of the total light yields as a function of the electric field and of the spectrometric distribution of the light e mitted, in the wavelength region between 250 and 930 nm. Results are presen ted 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 an d with a gaseous scintillation proportional counter.