A possible role for silicon microstrip detectors in nuclear medicine: Compton imaging of positron emitters
| Autor: | Robert D. Speller, Michel Raymond, Gregory Iles, M.G. Scannavini, Geoffrey Hall, Ian Cullum, Gary Royle |
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| Rok vydání: | 2002 |
| Předmět: |
Physics
Nuclear and High Energy Physics Physics::Instrumentation and Detectors business.industry Astrophysics::High Energy Astrophysical Phenomena Detector Compton scattering Collimator Noise (electronics) Particle detector Collimated light law.invention Optics law Angular resolution business Instrumentation Gamma camera |
| Zdroj: | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 477:514-520 |
| ISSN: | 0168-9002 |
| DOI: | 10.1016/s0168-9002(01)01796-x |
| Popis: | Collimation of gamma-rays based on Compton scatter could provide in principle high resolution and high sensitivity, thus becoming an advantageous method for the imaging of radioisotopes of clinical interest. A small laboratory prototype of a Compton camera is being constructed in order to initiate studies aimed at assessing the feasibility of Compton imaging of positron emitters. The design of the camera is based on the use of a silicon collimator consisting of a stack of double-sided, AC-coupled microstrip detectors (area 6 x 6 cm(2), 500 pin thickness, 128 channels/side). Two APV6 chips are employed for signal readout on opposite planes of each detector. This work presents the first results on the noise performance of the silicon strip detectors. Measurements of the electrical characteristics of the detector are also reported. On the basis of the measured noise. an angular resolution of approximately 5degrees is predicted for the Compton collimator. (C) 2002 Elsevier Science B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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