Practical lesson No 14. Colloquium No. 3 "Optics. Physics of atoms and molecules. Ionizing radiation"
Section outline
Practical lesson No 14. Colloquium No. 3 "Optics. Physics of atoms and molecules. Ionizing radiation"
Completion
Students must
Mark as done
The student must
learn the material on the topic and be able to answer the following questions:
1. The
phenomenon of total reflection of light. Refractometry. Fiber optics. 2. Optical
system of the eye: light-guiding and light-receptor apparatus. Accommodation.
Best sight distance. Near point of the eye. Defects of vision and methods of
their compensation. Acuity of vision. 3. Microscopy.
Resolution of the microscope. Microscope resolution limit. Microscope
magnification, useful magnification. 4. Absorption of
light. Bouguer-Lambert-Baer law. Optical density. 5. X-ray
radiation. Interaction of X-ray radiation with substance. The law of
attenuation of the X-ray radiation flux by matter. Physical bases of X-ray
radiation use in medicine: fluoroscopy, radiography, X-ray computer tomography
and X-ray therapy. 6.
Radioactivity. The law of radioactive decay. Interaction of α-, β- and γ - radiation with matter. 7. Dosimetry of
ionizing radiation. Absorbed and exposure doses. Dose rate, relationship
between exposure dose rate and activity of a radioactive preparation. Quality factor.
Equivalent dose. 8.
Protection against ionizing radiation.