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Ionizing Radiation
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Lecture outline Ionizing radiation 1. X-ray radiation 2. Complex Roentgen equipment З. Medical equipment based on use of ionizing radiation
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Roentgen medical equipment 1. Roentgen (X-ray) radiation 2. X-ray tube 3. X-ray devices 4. Computed Tomography (CT)
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Roentgen (X-ray) radiation X-ray radiation – are electromagnetic waves with wavelength range between 10 -2 and 10 nm.
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Ivan Pulyui Lamp
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X-ray tube with rotating anode
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Intensity of X-rays
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Roentgen diagnostic complex hardware
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Roentgen diagnostic computer operated complex hardware
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Block Scheme of X-ray diagnostic device
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Examination of a patient using mobile X- ray diagnostic device
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Mobile X-ray diagnostic device
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Monoblock of an X-ray device,,Арман-1’’
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Block Scheme of an “РДА”
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Computer system for X-ray CT examination
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Mammography
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Scheme of CT examination
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Internal view of a CT scanner
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Block Diagram of a CT scanner
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Procedure for CT scanning
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Roentgen equipment for examination of blood vessels 1. Roentgen spectra 2. Moseley's law З. Angiography 4. Angiographs
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Wilhelm Conrad Röntgen – inventor of X-rays
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Ivan Pavlovich Pulyui – inventor of Roentgen tube prototype
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Dependence of Х-ray intensity on voltage
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Dependence of X-ray minimal wavelength on voltage
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Characteristic X-ray spectrum
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Mechanism of characteristic x-ray spectra generation
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Moseley's law,
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Moseley's constant
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Coefficient of Х-ray absorption
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Comparison of X-ray absorption coefficients for bones and water
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Angiograph
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Angiography
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Angiograph from the 2 nd City Hospital, Ternopil
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Vascular visualization using angiography
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Vascular angiography of human hands
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Angiography
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Medical equipment based on use of ionizing radiation 1. Laws of radioactive decay. 2. Types of radioactive decay. 3. Composition of gamma-knife, cyber-knife, positron-emission tomography (PET), linear accelerator.
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Law of Radioactive Decay
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The activity of a radioactive substance
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Alpha (α)-Decay
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Beta (β) -decay
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Radioactive radiation
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Three types of radioactive radiation
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Gamma-chamber
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Gamma-radiation based device
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Gamma (γ)-knife
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Cyber-knife
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Linear Accelerator
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Schematic visualization of operational principle for linear accelerator
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Operational principles for Positron Emission Tomography (PET)
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Principle of Positron Emission Tomography
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References 1. Ємчик Л.Ф., Кміт Я.М. Медична і біологічна фізика: Підруч.-Львів: Світ, 2003.- 592 с. 2. Марценюк В.П., Дідух В.Д., Ладика Р.Б., Баранюк І.О., Сверстюк А.С., Сорока І.С. Підручник „Медична біофізика і медична аппаратура” Тернопіль: Укрмедкнига, 2008, 355 с. 3. Зисман Г.А., Курс общей физики. / Г.А. Зисман, О.М. Тодес //– М.: Наука, 1972. 366 с. 4. Ремизов А.Н. Медицинская и биологическая физика. / А.Н. Ремизов // - М.: Высшая школа, 1987. – 634 с. 5. Чалий О.В. Медична і біологічна фізика в 2-ох томах. / О.В. Чалий //– К.:ВІПОЛ, 2001 – 840 с. 6. Яворський Б.М., Курс фізики ч.ІІ, / Б.М. Яворський, А.А. Детлаф, Л.Б. Милковська // - К.: Вища школа, 1972. 345 с. 7.В. Д. Дідух. Заняття № 10. Кафедра медичної фізики з діагностичним та лікувальним устаткуванням. ТДМУ.
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