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X-ray Proportional Counters: Quiz
Proportional Counter Quiz
Proportional counters work based on what physical process?
[A] Photoelectric effect
[B] Brownian motion
[C] General Relativity
What determines the energy sensitivity of a gas proportional counter?
[A] Absorption cross section of the gas
[B] Altitude of the experiment above the Earth
[C] Celestial location of the X-ray source
In low-Earth orbit, the raw background count rates are an order of magnitude less than in interplanetary space.
[A] True
[B] False
The timing resolution of a proportional counter experiment aboard a satellite is determined by:
[A] The satellite telemetry rate
[B] The ion mobility of the gas
[C] The anode-cathode separation distance
[D] All of the above
What kind of detectors has so far been the "workhorse" of X-ray astronomy?
[A] Proportional counters
[B] Ground-based ones
[C] Film
