Radiation Types
Define primary radiation
High energy x-rays from the central beam of the x-ray tubehead, producing diagnostic images in dental radiography, essential for understanding the production and use of x-rays in dental imaging.
What are the abbreviations (R), (RAD), (rem), and (rbe)?
(rbe)= Relative Biological Effectiveness
(rem) = Roentgen Equivalent Man
(RAD) = Radiation Absorbed Dose
(R) = Roentgen
Who was Wilhelm Conrad Roentgen, what did he do and when did he do it?
A physicist who discovered X-rays in 1895, revolutionizing medical imaging and diagnosis.
Describe Somatic & Genetic cells
The somatic cells include all cells except the reproductive cells. The genetic group includes all reproductive cells.
Define Secondary Radiation
X-rays that contact matter or the patient, transforming into longer wavelengths with less energy, influencing the quality and safety of dental radiography.
Roentgen is
The unit of measurement for the amount of radiation that ionizes one cubic centimeter of air, a key concept in understanding radiation exposure in dental radiography.
Who was Dr. C. Edmond Kells, what did he do and when did he do it?
A pioneer in dental radiography who perfected the intraoral x-ray in 1896, but tragically suffered from radiation exposure.
What are the settings found in the control panel
milliamperage (mA), kilovoltage (kV), & electronic timer
Define Scatter Radiation
X-rays deflected from their path when striking matter, presenting a serious danger to the operator and emphasizing the importance of radiation safety in dental radiography.
Radiation Absorbed Dose is
The amount of ionizing radiation absorbed in a substance, a fundamental concept in understanding the effects of radiation on biological tissues in dental radiography.
Who was Dr. William Rollins, what did he do and when did he do it?
The inventor of the first dental x-ray unit in 1896, contributing to the advancement of dental radiography.
What should always be placed on a patient when exposing them to radiation?
A lead apron
Define Leakage Radiation
X-rays escaping in all directions from the tube or tubehead, causing harm and not useful for diagnostic x-rays, highlighting the need for proper maintenance and safety measures in dental radiography equipment.
Roentgen Equivalent Man is
The dose of radiation to which body tissues are exposed, a crucial concept in understanding the potential biological effects of radiation exposure in dental radiography.
Who was Dr. William D. Coolidge, what did he do and when did he do it?
The inventor of the hot cathode x-ray tube in 1913, which significantly improved the efficiency and safety of x-ray machines.
Energy traveling in waves, consisting of transverse waves called cycles, including the x-rays used in dental radiography.
Electromagnetic Energy
Name the types of radiations
Relative Biological Effectiveness is
A measurement unit used to compare the biological effects on various tissues irradiated by different forms of energy, providing insight into the relative risks associated with different types of radiation exposure in dental radiography.
Who were Dr. Howard Rober and A. Cieszyski, what did he do and when did he do it?
The inventors of the Bi-Secting technique in 1923, a method for obtaining dental radiographs at different angles for improved diagnostic accuracy.
atoms change into negatively or positively charged ions during radiation
Ionization