Nuclear Radiation 2 Flashcards

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1
Q

What is ionising power

A

The ability of radiation to damage molecules

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2
Q

What can alpha rays he absorbed by

A

A few centimetres of air or a thin sheet of paper

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3
Q

Beta rays can pass through air and paper but what can absorb it

A

A few millimeters of aluminum

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4
Q

Which type of nuclear radiation is the most penetrating

A

Gamma

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5
Q

If gamma can pass through anything that absorbs alpha or beta rays what absorbs it

A

Many centimeters of lead,or many metres of concrete to absorb the majority of

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6
Q

What type of nuclear radiation has the same components as helium

A

Alpha rays

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7
Q

What are the components of alpha rays

A

Two neutrons and two protons

And it is ejected from the nucleus

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8
Q

What are the hazards of alpha particles

A

They are highly likely to be absorbed and cause damage if passed through living cells

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9
Q

What are the components of beta rays

A

A high speed electrons

Ejected from the nucleus as a neutron turns into a proton

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10
Q

What are the hazards of beta rays

A

Likely to cause damage if absorbed by living cells

Can penetrate the body to inner organs

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11
Q

What are the components of gamma rays

A

Electromagnetic radiation

Emitted from the nucleus

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12
Q

What are the hazards of gamma rays

A

Likely to pass through living cells without being absorbed and causing ionisation

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