Imagine the Universe!
Imagine Home | Science | Advanced Science | 

Gamma Detectors Quiz

  1. Gamma-rays have only been detected since the late 1960's because:


  2. Gamma-rays passing through matter undergo



  3. This type of detector makes the atmosphere part of the detector.



  4. This type of detector uses semiconductors



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

The Imagine Team
Project Leader: Dr. Jim Lochner
Curator:Meredith Gibb
Responsible NASA Official:Phil Newman
All material on this site has been created and updated between 1997-2008.
Last Updated: Tuesday, 31-Jan-2006 14:08:57 EST