دراسة تصميمية لمسابر الألياف الضوئية الخاصة بقياسات التألق الليزري في الأوساط المضطربة

الموضوعات

علوم بحتة وطبيعية

روابط وملفات

التعريف والنوع

رقم الوثيقة

fc26a3af-69c6-4a7f-9f46-22c881c9637d

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1961257_1.pdf

بيانات النشر

ترجمة العنوان

Design Study of Fiber Optic Probes for Laser-induced Fluorescence Measurements in Turbid Media

ألقاب المؤلفين

[{"name_ar":" وسام بشير","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"حنين شحادة","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة تصميمية لمسابر الألياف الضوئية الخاصة بقياسات التألق الليزري في الأوساط المضطربة

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

The aim of this thesis is to determine the best optical-probe geometry that would help to detect neoplastic lesions in oral epithelial tissue. Five geometrical configurations were investigated. The first one implements different fiber diameters, the second one implements different distances between the illumination and collection fibers, the third one implements different diameters and separation distances, while the last two aimed to study the effect of tilting angles of illumination and collection fibers on the detected fluorescence signal. The first two geometries were evaluated for their collection efficiency and depth resolution. The effect of numerical aperture (NA) and tissue optical properties on the fluorescence signal were also studied. Optical properties of dysplastic tongue epithelial multi-layered tissue were used as an input for Monte Carlo simulation. The results showed that the sensitivity to superficial layers could be achieved using small fiber diameters or larger tilting angels. On the contrary, the sensitivity to deeper layers could be achieved using larger distances between illumination and collection fibers accommodated with larger collection diameters. Fluorescence signal collected with varying distances from the illumination fiber was found to be less intense and less sensitive to superficial layers. Other important observation was that the total fluorescence detected significantly increases when the fiber NA increases. Finally a suggested geometry was presented and proved to achieve high sensitivity for both of superficial and Stroma layers

إشراف وإعداد

الإشراف

وسام بشير

الإعداد

حنين شحادة

الاقتباسات الببليوغرافية