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Astronomer's Toolbox
Pair Telescopes: Quiz
Pair Telescopes Quiz
Pair production is the dominant physical reaction of materials to gamma-rays above:
[A] 30 keV
[B] 3 MeV
[C] 30 MeV
What "type" of pair is created in pair production:
[A] An electron/hole pair
[B] An electron/positron pair
[C] An electron/proton pair
The kinds of objects one studies with pair telescopes includes:
[A] Pulsars and active galaxies
[B] Planets and moons
[C] Quasars and comets
In a pair telescope, an anti-coincidence shield is used to:
[A] Insure that no two telescopes look alike
[B] Reduce noise induced by cosmic rays
[C] Keep the gas in thermal equilibrium
[D] None of the above