Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4392
Title: | Very high position resolution gamma imaging with resistive plate chambers | Authors: | Blanco, A. Carolino, N. Correia, C. M. B. A. Fazendeiro, L. Ferreira, Nuno C. Marques, M. F. Ferreira Marques, R. Ferreira Fonte, P. Gil, C. Macedo, M. P. |
Keywords: | Gaseous detectors; Photodetectors | Issue Date: | 2006 | Citation: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 567:1 (2006) 96-99 | Abstract: | In this study we present experimental results from a first prototype of a positron emission tomography system based on the resistive plate chamber (RPC) technology. The system is composed of two counting heads, each one containing 16 single-gap RPC detectors capable of detecting the photon interaction point in the transaxial plane. Uniformity studies were performed for image resolution and sensitivity, yielding a rather uniform image resolution close to 0.3 mm FWHM across the field of view. The contribution of the photons noncolinearity effect to the intrinsic spatial resolution was also studied, causing a variation from 0.52 to 0.63 mm when the system diameter ranges from 60 to 120 mm, in agreement with calculations. | URI: | https://hdl.handle.net/10316/4392 | DOI: | 10.1016/j.nima.2006.05.074 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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fileab44a717036f454bb9123c35f9eb2a39.pdf | 290.55 kB | Adobe PDF | View/Open |
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