Radiation Physics
The electromagnetic force or attraction between a positive nucleus and negative electrons
What is binding energy?
The total transfer of energy from the X-ray photon to patient tissues
What is absorption?
The side of the right triangle opposite to the right angle
What is the hypotenuse?
Film size used for occlusal children exposures
What is size 2 film?
The pivotal point or axis around which the cassette carrier and X-ray tube head rotate
What is the rotation centre?
It is the electron with the greatest binding energy
What is the K-shell?
Occur as a direct function of dose
What are stochastic effects?
The equality of measurement
What is isometry?
Film size used for occlusal adult exposures
What is size 4 film?
A 3D curved zone where structures are clearly demonstrated on a panoramic radiograph
What is the focal trough?
Streams of high speed electrons that originate in the X-ray tube
What are cathode rays?
The time that elapses between exposure to ionizing radiation and the appearance of observable clinical signs
What is the latent period?
An imaginary line that divides the tooth longitudinally into two equal halves
What is the long axis of the tooth?
For use on the hard palate, upper lip and base of the nose
What is a maxillary occlusal film?
Becomes superimposed on structures of interest
What is the spinal column?
Wavelike energy that travels through space or matter
What is electromagnetic radiation?
Dentist who exposed his hands to X-rays everyday for years and developed cancer as a consequence
Who is Dr. C. Edmond Kells?
The central portion of the primary beam of x-radiation
What is the central ray?
For use on the tongue, floor of mouth and the lower lip
What is a mandibular occlusal film?
Is not a suitable substitute for conventional intraoral films for the detection of caries, periodontal disease, small lesions and evaluation of restorations
What is a panoramic film?
A device that alters the voltage of incoming electricity
What is a transformer?
The last event in the sequence of radiation injury
What is the recovery period?
States that two triangles are equal if they have two equal angles and share a common side
What is the Rule of Isometry?
Used to examine the buccal and lingual views of the mandible
What is the mandibular cross-sectional occlusal projection?
Allows imaging of one section of the body while blurring images from structures in other planes
What is the TOMOGRAPHY process?