Imaging detectors based on the gas electron multiplier scintillation light

Author

Fraga, F.A.F. ; Fetal, T.G. ; Margato, L.M.S. ; Ivaniouchenkov, I. ; Marques, R. Ferreira ; Policarpo, A.J.P.L.

Author_Institution

Dept. de Fisica, Coimbra Univ., Portugal

Volume

2

fYear

1999

fDate

1999

Firstpage

829

Abstract

We have developed a novel type of two-dimensional, large area, low granularity gaseous position sensitive detector using a gas electron multiplier foil (GEM) and a standard CCD camera with glass optics. First results obtained with a 10×10 cm² GEM foil demonstrate that the position resolution with 7 keV X-rays using a Xe-CO₂ mixture is better than 100 μm (RMS). The complete system is described and experimental results on position resolution, efficiency and linearity are shown. Data on light efficiency for mixtures of interest for detection of other types of radiation, such as neutrons, are also presented. Possible applications of this type of detector are considered

Keywords

X-ray detection; carbon compounds; gas mixtures; gas scintillation detectors; position sensitive particle detectors; xenon; Xe-CO₂; Xe-CO₂ mixture; efficiency; gas electron multiplier foil; gas electron multiplier scintillation light; imaging detectors; light efficiency; linearity; low granularity gaseous position sensitive detector; position resolution; standard CCD camera; Charge coupled devices; Charge-coupled image sensors; Electron multipliers; Electron optics; Glass; Optical imaging; Optical sensors; Position sensitive particle detectors; Standards development; X-rays;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1999. Conference Record. 1999 IEEE

Conference_Location

Seattle, WA

ISSN

1082-3654

Print_ISBN

0-7803-5696-9

Type

conf

DOI

10.1109/NSSMIC.1999.845794

Filename

845794