Very high position resolution gamma imaging with resistive plate chambers
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 interacti...
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| Outros Autores: | , , , , , , , , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2006
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| Assuntos: | |
| Texto completo: | http://hdl.handle.net/10316/4392 |
| País: | Portugal |
| Oai: | oai:estudogeral.sib.uc.pt:10316/4392 |
| Resumo: | 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. |
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