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Questions and Answers
A thin sheet of paper is sufficient to stop alpha particles, making alpha radiation not a shielding problem.
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.
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.
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.
The Half-Value Layer (HVL) is the thickness required to reduce the radiation intensity to one quarter of its incident value.
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Neutron capture reactions mainly involve elements with low n-capture 'cross-section'.
Neutron capture reactions mainly involve elements with low n-capture 'cross-section'.
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Borated Polyethylene is a shielding material mainly used for slowing down fast neutrons through inelastic scatter interactions.
Borated Polyethylene is a shielding material mainly used for slowing down fast neutrons through inelastic scatter interactions.
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Alpha radiation is a significant external radiation hazard as it can penetrate to the sensitive organs of the body.
Alpha radiation is a significant external radiation hazard as it can penetrate to the sensitive organs of the body.
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The guiding principle of radiation safety is 'As High As Necessary' (AHAN).
The guiding principle of radiation safety is 'As High As Necessary' (AHAN).
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Dose rate is directly proportional to the distance from the radiation source.
Dose rate is directly proportional to the distance from the radiation source.
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The amount of time spent near a radioactive source has no effect on the overall dose.
The amount of time spent near a radioactive source has no effect on the overall dose.
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Shielding is not a basic protective rule in radiation safety.
Shielding is not a basic protective rule in radiation safety.
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The ALARA principle recommends maintaining a minimum distance from a radioactive source.
The ALARA principle recommends maintaining a minimum distance from a radioactive source.
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