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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Arfelli, F. Barbiellini, G. Bonvicini, V. Bravin, A. Cantatore, G. Castelli, E. Dalla Palma, L. Di Michiel, M. Longo, R. Olivo, A. Pani, S. Pontoni, D. Poropat, P. Prest, M. Rashevsky, A. Tromba, G. Vachi, A. |
| Copyright Year | 1997 |
| Description | Author affiliation: Dipt. di Fisica, Ist. Nazionale di Fisica Nucl., Trieste, Italy (Arfelli, F.) |
| Abstract | A synchrotron radiation beamline devoted to medical imaging has been built by the SYRMEP collaboration at Elettra in Trieste, Italy, and is now in operation. The SYRMEP imaging system is based on the combination of a monochromatic, laminar X-ray beam, with a laminar, high-efficiency pixel silicon detector. To image soft tissue, including small, low-contrast details, as in mammography, beam energies should be chosen in the range from 15 keV to 30 keV and the detector should be capable of single-photon counting. The SYRMEP beamline originates from a bending magnet light port and consists basically of a Be window, a slit system and a Si(1,1,1) crystal monochromator. The experimental area is equipped with a radiation flux monitor, a sample movement stage, and a positioning system holding the silicon detector. Images are obtained by keeping the detector stationary with respect to the beam and by scanning the sample through the beam itself. The current detector is a linear array of 200/spl times/300 /spl mu/m/sup 2/ pixels, each coupled to its electronic counting chain on a custom VLSI read-out chip. We present a summary of beam studies, and digital images of standard RMI 160 and RMI 180 Ackermann Mammographic phantoms. Results show the high contrast resolution, the good spatial resolution and the large dynamic range which constitute the defining characteristics of the SYRMEP imaging system. |
| Starting Page | 1089 |
| Ending Page | 1093 |
| File Size | 545611 |
| Page Count | 5 |
| File Format | |
| ISBN | 0780335341 |
| ISSN | 10823654 |
| DOI | 10.1109/NSSMIC.1996.591562 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1996-11-02 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Mammography Strontium Light sources Silicon Spatial resolution Synchrotron radiation Biomedical imaging Collaboration Optical imaging X-ray imaging |
| Content Type | Text |
| Resource Type | Article |
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