Dental Radiology Exam Study Guide | Questions And Answers Latest {2024- 2025} A+
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Professor Wilhelm Roentgen - Discovered the x rays
Digital radiography utilizes the following approach - Filmless radiographic computer imaging system
A form of energy is - Heat , Light , Electricity , X radiation
Photons are described as - Bundles of energy
Limited penetration long-wavelength radiation is known as - Soft radiation
Background radiation originates from - Environment , Outer space , Radionuclides , Terrestrial Radiation
Ionizing radiation produces ions when - Radiation passes through body tissues
Common characteristics of radiation are - Wavelengths that determine the penetrating power
Forms of electromagnetic radiation
The giving off of electrical field at right angles to the path of travel
Straight lines that travel at 186,000 miles per second
Hard radiation is considered to be the - 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 - Negatively charged atomic particle
, Penumbra is defined as - Fuzzy outline of a radiographic image
What are the properties of electromagnetic radiations - Travels at the speed of light
No electrical charge and no mass or weight
Measurable energies
Ionizing types of radiation includes - Gamma rays
Cosmic rays
X rays
X rays are grouped according to - Wavelengths
The measurements of the number of oscillation per second of electromagnetic radiation is known as -
Frequency
X rays characteristically - Travel in waves
Are invisible
Have no mass
A unit measuring ionization in the air is known as - Coulomb per kilogram
A unit measuring the effect of X rays on the tissues is defined as - Rem
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