History
This person discovered x-rays.
Who was W.C. Roentgen?
These are the three primary components of every dental x-ray machine.
What are the tubehead, extension arm, and control panel?
This type of radiation is harmful and produces biologic changes in living tissues.
What is ionizing radiation?
These stay stable in their orbit of an atom unless they become disturbed or moved. (x-rays can disturb them)
What are electrons?
These are the 3 characteristics of an x-ray beam.
What are quality, quantity, and intensity of the x-ray beam?
He was the first person to expose a DENTAL radiograph.
Who was Otto Walkhoff?
This lies inside the tubehead and is where x-rays are produced.
What is the x-ray tube?
This must be used on ALL patients for ALL exposures.
What is the lead apron and thyroid collar?
Energy lost by deceleration of the electron is emitted as this.
What is heat or radiation?
This controls the quality or wavelength and energy of the x-ray beam. This should be higher when the area to be examined is dense or thick.
What is kV?
The year x-rays were discovered.
What was 1895?
The x-ray tube contains a positively charged electrode and a negatively charged electrode that go by the names:_________ and_________.
What is the anode and cathode?
This is necessary for ensuring the diagnostic quality of images and reduces the amount of exposure to the patient.
What is correct technique?
A tiny (minute) bundle of pure energy that has no weight or mass.
What is a photon?
The number of x-rays produced in the dental x-ray unit is called _________ and is determined by _______.
What is quantity and mA?
This person took the first radiograph on a live patient. The year in which it happened.
Who was C.E. Kells? What was 1896?
This is a lead-lined part of the x-ray tubehead which is used to aim at the film in the patient's mouth.
What is the PID (Position Indicator Device)?
This item is used to measure the amount of occupational exposure to ionizing radiation.
What is the dosimeter?
Atoms that gain or lose an electron and become electrically unbalanced are these.
What are ions?
This controls the heat of the tungsten filament in the cathode that releases electrons.
What is mA?
The first paper written explaining the dangers of x-radiation was by this man in the year_____.
Who was W.H. Rollins and was it in 1901?
This item contains a master switch, indicator light, selector buttons, and an exposure button. (the exposure button is located on a wall outside the x-ray room to protect the operator)
What is the control panel?
This concept states that all exposure to radiation must be kept to a minimum, or "as low as reasonably achievable".
What is the ALARA Concept?
X-rays belong to a group classified as this.
What is electromagnetic radiation?
The A in mA stands for this.
What is ampere?