Biology
Radiation Types
History
100

What charge does a proton have?

+

100
What is primary radiation?

central beam that comes from the x-ray tube head

100

Who invented the x-ray?

Roentegen

200

What charge does an Electron have?

-
200

What is secondary radiation?

When primary radiation strikes the patient of contact matter.

200

Who took the first dental x-ray?

Kells

300

What charge does a Neutron have?

no charge

300

What is scatter radiation?

Deflected from its path as it strikes matter.

300

What year was the hot cathode x-ray developed?

1913

400

What is located out side the nucleus of an atom?

electrons

400

What is Leakage radiation?

Escapes in all directions from the tubehead.

400

Who invented the hot cathode x-ray tube?

Coolidge

500

What is located inside the nucleus of an atom?

Protons and Neutrons

500

Are x-rays long or short wavelengths?

Short

500

Who invented the paralleling technique?

McCormack

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