Dental radiology Exam Study Guide with Complete Solutions

Dental radiology Exam Study Guide with Complete Solutions Professor Wilhelm Roentgen - Answer️️ -Discovered the x rays Digital radiography utilizes the following approach - Answer️️ -Filmless radiographic computer imaging system A form of energy is - Answer️️ -Heat , Light , Electricity , X radiation Photons are described as - Answer️️ -Bundles of energy Limited penetration long-wavelength radiation is known as - Answer️️ - Soft radiation Background radiation originates from - Answer️️ -Environment , Outer space , Radionuclides , Terrestrial Radiation Ionizing radiation produces ions when - Answer️️ -Radiation passes through body tissues Common characteristics of radiation are - Answer️️ -Wavelengths that determine the penetrating power Forms of electromagnetic radiation The giving off of electrical field at right angles to the path of travel ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 2 Straight lines that travel at 186,000 miles per second Hard radiation is considered to be the - Answer️️ -This type of radiation has short wavelengths and higher energy or penetrating power , which is suitable for taking dental radiographs An electron is define as - Answer️️ -Negatively charged atomic particle Penumbra is defined as - Answer️️ -Fuzzy outline of a radiographic image What are the properties of electromagnetic radiations - Answer️️ -Travels at the speed of light No electrical charge and no mass or weight Measurable energies Ionizing types of radiation includes - Answer️️ -Gamma rays Cosmic rays X rays X rays are grouped according to - Answer️️ -Wavelengths ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 3 The measurements of the number of oscillation per second of electromagnetic radiation is known as - Answer️️ -Frequency X rays characteristically - Answer️️ -Travel in waves Are invisible Have no mass A unit measuring ionization in the air is known as - Answer️️ -Coulomb per kilogram A unit measuring the effect of X rays on the tissues is defined as - Answer️️ -Rem X rays originate when components in the X-ray tube are heated and free electrons are propelled at high speed toward the - Answer️️ -Tungsten target Dense structures such as bone and enamel - Answer️️ -Absorb more X- rays Appears radiopaque Within the X-Ray tube , converted energy produces - Answer️️ -99 % heat and 1 % X-rays ©SOPHIABENNET@2024/2025 Tuesday, August 20, 2024 10:21 AM 4 The electrical circuits of the X-Ray machine includes the - Answer️️ - Filament Circuit Low voltage Cathode-anode Circuit High voltage The electric current flows through the filament circuit and heat the - Answer️️ -Cathode filament The positive terminal or electrode in an electric circuit is the - Answer️️ - Anode Thermionic emission is created by a - Answer️️ -Filament wire hea