Title :
Using a multilayer printed circuit board as position sensing electrode in a triple-GEM detector
Author :
Marinho, P.R.B. ; Barbosa, A.F. ; Guedes, G.P.
Author_Institution :
Lab. de Sistemas de Deteccao, Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro
Abstract :
The development of a triple-GEM imaging detector is reported. The triple-GEM detector provides two-dimensional (2-D) localization of ionizing events making use of a multilayer printed circuit board (X&Y anode) for position readout. Two-dimensional localization is achieved by associating one discrete delay line to each spatial coordinate. Results referring to differential nonlinearity (DNL), integral nonlinearity (INL) and spatial resolution are presented. The detector has been operated with Ar/Xe/CO2 (64/16/20) gas mixture at atmospheric pressure. 5.9 keV (55Fe source) photons were used to characterize the detector. The feasibility of the imaging technique is demonstrated and the major issues are addressed
Keywords :
electron multiplier detectors; gas scintillation detectors; position sensitive particle detectors; printed circuits; readout electronics; Ar/Xe/CO gas mixture; atmospheric pressure; differential nonlinearity; imaging technique; integral nonlinearity; ionizing events; multilayer printed circuit board; position readout; spatial coordinate; spatial resolution; triple-GEM imaging detector; two-dimensional localization; Anodes; Argon; Delay lines; Electrodes; Event detection; Gas detectors; Nonhomogeneous media; Printed circuits; Spatial resolution; Two dimensional displays; Delay line readout; gas electron multiplier; gaseous imaging detector; two-dimensional (2-D) readout;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.862800
