Practice Quiz

ADA NBDHE Dental Hygienist

Category - Provision of Clinical Dental Hygiene Services

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Which material used to generate x-rays from electrons is found in BOTH the anode and cathode of the x-ray tube?
  1. Copper
  2. Lead
  3. Molybdenum
  4. Tungsten
Explanation
Answer: D - Tungsten is used to generate x-rays from electrons and is found in both the anode and cathode of the x-ray tube.
Tungsten makes up the filament in the cathode which is heated to release electrons. The focal spot in the anode is also made of tungsten which helps convert the received electrons into x-rays.
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