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Radiation Safety Exam Questions and Answers
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  • Radiation safety
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  • Radiation Safety

X-ray production - Answer-*e- move at high speeds from cathode to anode --when e- strike the anode, x-rays are created via Bremsstrahlung and characteristic interactions **photon beams are polyenergetic Sources of x-radiation for operators/other staff during x-radiation production - Answer-1.S...

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  • October 10, 2024
  • 3
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • radiation safety exam questions and answers
  • x ray production answer e move at high speeds

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  • Radiation safety
  • Radiation safety

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Radiation Safety Exam Questions and
Answers
X-ray production - Answer-*e- move at high speeds from cathode to anode
--when e- strike the anode, x-rays are created via Bremsstrahlung and characteristic
interactions
**photon beams are polyenergetic

Sources of x-radiation for operators/other staff during x-radiation production - Answer-
1.Scattered radiation or secondary
2. Safety measures to reduce operator x-radiation exposure.-keep out of line of sight of
x-ray beams, lead lined walls or barriers help the most. ionizing radiation can damage
tissue with high rates of cell division chronic exposure is worse than one time higher
exposure

X-Radiation characteristics - Answer-Colorless, odorless and able to penetrate light

X-radiation physics - Answer-Primary radiation:-The penetrating x-ray beam produced
during dental radiography is called Primary radiation.

Scatter (secondary) radiation. The radiation that is formed by the interaction of x-rays
with matter is Scatter (secondary) radiation.

X-radiation biology
Short-and
long-term effects of x-radiation on cells and tissues - Answer-Short term/acute effects of
radiation: Nausea, Vomiting, Hair loss, Fever, and Bleeding This happens when tissues
are exposed to large amounts of radiation in a very short period of time.

Long term effects/cumulative effects of radiation: Cancer, Birth defects, Cataracts in
eyes, Premature aging This happens when damage is caused to cells/tissues and the
cell/tissue can't repair itself. This is caused by small exposure amounts over a long
period of time. Over time little by little these cells will simply die or become diseased.

Concepts of x-radiation dose - Answer-Dental x-rays are one of the lowest radiation
dose studies performed. A routine exam which includes 4 bitewings is about 0.005 mSv,
which is less than one day of natural background radiation.

X-radiation safety
1. Causes of unnecessary exposure to x-radiation - Answer-Not shielding properly, not
using the fastest shield film, taking x-rays when they are not absolutely needed, and not
monitoring the equipment's properly

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