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appears as heat. This property is the basis for the use IR light to heat tissues. Also the heat produced by laser beams is used to weld a detached retina to the back of eyeball and to coagulate small blood vessels in retina. 4- Some time when alight photon is absorbed, a lower energy light photon is emitted. This property is known as fluorescence.
Light has some interesting properties, many of which are used in medicine: - 1. The speed of light changes when it goes from material into another. The ratio of the speed of light in a vacuum to its speed in a given material is called the index of refraction. If a light beam meets a new
the basis for the use in medicine of IR light to heat tissues. Also, the heat produced by laser beams is used to "weld" a detached retina to the back of the eyeball and to coagulate small blood vessels in the retina. 4- Sometimes when a light photon is absorbed, a lower energy light photon is emitted. This property is known as . fluorescence ...
Medical Physics Chapter 14 Light in Medicine - 4 - KHU, EI 468. m Photo50 µm spot coagulation of the retina (Fig. 14.18) Heating a blood vessel ⇒ blood coagulation ⇒ block the vessel MRD (minimal reactive dose): 2.4 mJ in 0.25 s for 50 µm spot Typical exposure: 10 ~ 50 times MRD (24 ~ 120 mJ in 0.25 s for 50 µm spot) Repair reti na tears ...
Light has some interesting properties, many of which are used in medicine: 1. The speed of light changes when it goes from one material to another. The ratio of the speed of light in a vacuum to its speed in a given material is called the index of refraction. 2. Light behaves both as a wave and as a particle. As a wave, it produces
Light has some interesting properties, many of which are used in medicine: - The speed of light changes when it goes from material into another. The ratio of the speed of light in a vacuum to its speed in a given material is called the index of refraction = (the speed of light in a vacuum / the speed of light in a given material ).
book is 500 pages, and there are 40 colour and 303 B/W illustrations. The book is comprised of 15 Chapters, each with its own Bibliography. The book assumes some familiarity with physics and maths concepts that is usually acquired in the foundation year of physics, biomedical engineering or medical degrees.
