Spatial resolution and scanning time in the optical tomography of absorbing 'phantoms' under multiple scattering conditions
| Autor: | I. V. Shutov, D A Chursin, Vladimir V Shuvalov, V M Petnikova, E V Malikov |
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| Rok vydání: | 2000 |
| Předmět: |
Physics
Photon medicine.diagnostic_test business.industry Scattering Statistical and Nonlinear Physics Noise (electronics) Signal Atomic and Molecular Physics and Optics Imaging phantom Electronic Optical and Magnetic Materials Optics Signal-to-noise ratio medicine Electrical and Electronic Engineering Optical tomography business Image resolution |
| Zdroj: | Quantum Electronics. 30:78-80 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | Photon-counting optical tomography was used in the visualisation and projective reconstruction of the image of a strongly absorbing inclusion (a 'phantom'), 6 mm in diameter, hidden by multiple scattering processes in a model object (diameter 140 mm, absorption and scattering coefficients 0.005 and 1.4 mm-1, respectively). It was demonstrated experimentally that when the probe radiation power was 10 — 13 mW the minimal (corresponding to the poorest signal/noise ratio ~1) measurement time (photon-counting time) was 0.8 s per one measurement point and the total time needed to scan the whole object was less than 410 s. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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