Multiwavelength Astronomy Multimedia


Gamma-ray penetration of materials


Gamma radiation (which includes gamma rays, X-rays, and ultraviolet radiation) cannot penetrate our atmosphere, but can travel through materials such as paper and aluminum. Only heavy metals (such as lead) and other materials like concrete can block gamma rays.


  • Gamma radiation
  • Concepts


Courtesy of Ehamberg and Stannere on Wikimedia Commons, available under Creative Commons Attribution 2.5 Generic license.



Associated Lesson

Gamma Ray Science

This material is based upon work supported by NASA under Grant Nos. NNX09AD33G and NNX10AE80G issued through the SMD ROSES 2009 Program.

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