12 Questions
A thin sheet of paper is sufficient to stop alpha particles, making alpha radiation not a shielding problem.
True
In beta shielding, the production of secondary x-rays is caused by the acceleration of the charged beta particles in the shield.
False
Gamma and x-rays are attenuated linearly when they pass through materials, following an exponential decay law.
False
The Half-Value Layer (HVL) is the thickness required to reduce the radiation intensity to one quarter of its incident value.
False
Neutron capture reactions mainly involve elements with low n-capture 'cross-section'.
False
Borated Polyethylene is a shielding material mainly used for slowing down fast neutrons through inelastic scatter interactions.
False
Alpha radiation is a significant external radiation hazard as it can penetrate to the sensitive organs of the body.
False
The guiding principle of radiation safety is 'As High As Necessary' (AHAN).
False
Dose rate is directly proportional to the distance from the radiation source.
False
The amount of time spent near a radioactive source has no effect on the overall dose.
False
Shielding is not a basic protective rule in radiation safety.
False
The ALARA principle recommends maintaining a minimum distance from a radioactive source.
False
Explore information about radiation sources outside the body, including alpha, beta, X, gamma, and neutron radiation. Learn about the guiding principle of radiation safety known as 'ALARA', which stands for 'As Low As Reasonably Achievable'. Discover how to avoid exposure to radiation that does not provide a direct benefit.
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