WorksheetsHPGe
Total questions: 8
Worksheet time: 4mins
Which type of HPGe detector has greater efficiency at low photon energies (~100 keV)
p-type
n-type
a-type
Compton Scattering typically involves electrons bound to this shell.
Innermost shell (K-shell)
Outermost shell
one of the middle shells
sea shell
For HPGe detectors to operate, they must be cooled to the temperature of liquid nitrogen. What is that temperature?
-40 degrees C or F
-213.45 degrees C
-196 degrees C
1000 degrees C
In a reversed bias p-n junction, the n-type material contains which type of charge carrier and is connected to which terminal of the power source?
electron, positive end
electron, negative end
"hole", positive end
"hole", negative end
In a p-type HPGe detector, approximately how thick is the surface dead layer that is created by lithium diffusion.
10 μm
50 μm
100 μm
1000 μm
Pair production may occur when a photon has at least this amount of energy?
511 eV
511 KeV
1022 MeV
1022 KeV
Germanium crystals are purified through this technique.
Czochralski technique
That is classified
haberdashery flux mining
zone refining
At Geneseo how many working HPGe detectors do we have currently at this moment?
1
2
3
nobody really knows but hopefully all of them.
