http://hyperphysics.phy-astr.gsu.edu/hbase/mod3.html [2]
http://en.wikibooks.org/wiki/Basic_Physics_of_Nuclear_Medicine/Interacti... [3]
http://www.ehs.utoronto.ca/services/radiation/radtraining/module3.htm [4]
http://www.tesec-int.org/TechHaz-site%2008/Radiation-interaction.pdf [5]
http://www.ohio.edu/people/piccard/radnotes/penetrate.html [6]
https://www.nde-ed.org/EducationResources/CommunityCollege/RadiationSafe... [7]
http://oregonstate.edu/instruct/ch374/ch418518/Chapter%2017%20Interactio... [8]
Links
[1] https://hootsgo.org/?q=node/6413
[2] http://hyperphysics.phy-astr.gsu.edu/hbase/mod3.html
[3] http://en.wikibooks.org/wiki/Basic_Physics_of_Nuclear_Medicine/Interaction_of_Radiation_with_Matter
[4] http://www.ehs.utoronto.ca/services/radiation/radtraining/module3.htm
[5] http://www.tesec-int.org/TechHaz-site%2008/Radiation-interaction.pdf
[6] http://www.ohio.edu/people/piccard/radnotes/penetrate.html
[7] https://www.nde-ed.org/EducationResources/CommunityCollege/RadiationSafety/theory/interaction.htm
[8] http://oregonstate.edu/instruct/ch374/ch418518/Chapter%2017%20Interaction%20of%20Radiation%20with%20Matter-rev.pdf