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WorksheetsWhat is a Photomultiplier Tube?
Total questions: 12
Worksheet time: 6mins
What is the function of a photo multiplier tube (PMT)?
Convert electrical signal into light
Convert radiation into electrical signal
Convert electrical signal into radiation
Convert light into radiation
What is the job of the photocathode in a PMT?
To convert electrical signal into light
To convert radiation into light
To convert light into electrical signal
To amplify electrical signal
What is the phenomenon called when a metal plate in a PMT is bombarded by electrons and emits more electrons?
Scintillation
Photoelectric effect
Magnetic permeability
Secondary emission
What is the purpose of the dynodes in a PMT?
To convert light into radiation
To amplify electrons into more electrons
To convert radiation into electrical signal
To amplify radiation into more radiation
What is the typical applied voltage per dynode in a PMT?
50 to 100 volts
10 to 50 volts
150 to 200 volts
100 to 150 volts
What material are the dynodes in a PMT coated with?
Magnesium oxide
Aluminum nitride
Silicon carbide
Copper sulfate
What is the purpose of the anode in a PMT?
To emit scintillation light
To convert light into radiation
To collect amplified electrons
To amplify electrical signal
What is the total amplification if there is a magnification of four at every PMT dynode and there are five dynodes?
256
2048
625
1024
What is the purpose of a high voltage supply in a PMT?
To amplify radiation
To emit scintillation light
To amplify electrical signal
To convert light into radiation
What is the purpose of the entrance window in a PMT?
To collect amplified electrons
To allow photons to enter
To convert light into radiation
To amplify electrical signal
What is the effect of magnetic fields on PMTs?
Distort electron pathways
Emit scintillation light
Convert light into radiation
Amplify electrical signal
What is the purpose of the mu-metal encasing in a PMT?
To protect against low magnetic fields
To amplify electrical signal
To amplify radiation
To emit scintillation light
