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Proportional Counter Quiz

  1. Proportional counters work based on what physical process?


  2. What determines the energy sensitivity of a gas proportional counter?


  3. In low-Earth orbit, the raw background count rates are an order of magnitude less than in interplanetary space.

  4. The timing resolution of a proportional counter experiment aboard a satellite is determined by:



  5. What kind of detectors has so far been the "workhorse" of X-ray astronomy?


Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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