Multilayer electroluminescence camera: concept and Monte Carlo study

Author

Bolozdynya, Alexander I. ; Morgunov, Vasiliy L.

Author_Institution

Dept. of Med. Phys., Rush-Presbyterian-St. Luke´´s Med. Center, Chicago, IL, USA

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

1646

Lastpage

1655

Abstract

A concept for a multilayer electroluminescent camera (MELC) for X- and low energy γ-ray imaging is presented. The MELC contains a stacked electrode structure immersed in a pressurized noble gas. The electrodes are made of a thin foil covered by photodetector arrays. A particular design of the MELC based on wave-shifting fiber arrays optically coupled to external photodetectors is considered. The MELC allows about a 1-mm three-dimensional position resolution with an energy resolution roughly 1-2% at 140 keV. The number of readout channels can be no more than 300 per layer per square meter of field of view. Total detection efficiency depends on the number of layers and the gas pressure and can be comparable to that of solid state detectors. The count rate can be up to 10 MHz per layer. Computer simulations, undertaken to study the feasibility of the MELC, and potential applications are described

Keywords

Monte Carlo methods; X-ray detection; electroluminescence; gamma-ray detection; position sensitive particle detectors; solid scintillation detectors; γ-ray imaging; Monte Carlo; X-ray imaging; computer simulation; count rate; detection efficiency; energy resolution; gas pressure; multilayer electroluminescent camera; position resolution; readout channels; stacked electrode structure; wave-shifting fiber arrays; Cameras; Electrodes; Electroluminescence; Energy resolution; Monte Carlo methods; Nonhomogeneous media; Optical arrays; Optical design; Optical imaging; Photodetectors;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.685287

Filename

685287