| 000 | 01868cam a2200325 a 4500 | ||
|---|---|---|---|
| 003 | EG-GiCUC | ||
| 005 | 20250223031642.0 | ||
| 008 | 170122s2016 ua d f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.12.04.M.Sc.2016.Es.I | ||
| 100 | 0 | _aEsraa Osama Zaki Ellewaa | |
| 245 | 1 | 0 |
_aImprovement in early detection of breast cancer / _cEsraa Osama Zaki Ellewaa ; Supervised Ali Ellakkani |
| 246 | 1 | 5 | _a{uFE97}{uFEA4}{uFEB4}{uFBFF}{uFEE6} ا{uئإؤئ}{uئإؤأ}{uئإآ٨}{uئإؤ٢} ا{uئإؤئ}{uئإإ٤}{uئإ٩٢}{uئإؤأ}{uئإءإ} {uئإؤئ}{uئإآ٤}{uئإءإ}{uئإأ٣}{uئإ٨إ}ن ا{uئإؤئ}{uئإ٩أ}{uئإءء}ى |
| 260 |
_aCairo : _bEsraa Osama Zaki Ellewaa , _c2016 |
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| 300 |
_a48 P. : _bcharts ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Biophysics | ||
| 520 | _aThis work introduces a theoretical method which can restore some of the low energy x- ray photons that do not reach the detector due to the breast attenuation and that will increase the quality of the processed mammography image. This is performed by measuring the incident x- ray tube spectrum, the transmitted x- ray spectrum through the breast and the thickness of the imaged breast then extrapolating the attenuation coefficient toward the low energy region. As a result the optimum energy weighting SNR was enhanced for the two different x-ray spectra with and without Mo filter about 36% and 46% respectively | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aDigital detectors | |
| 653 | 4 | _aEnergy weighting SNR | |
| 653 | 4 | _aMammography | |
| 700 | 0 |
_aAli Ellakkani , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aNazla _eRevisor |
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| 905 |
_aSamia _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c59542 _d59542 |
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