June 2011, page 49—The scan for figure 4 is courtesy of L-3 Communications Security and Detection Systems.
© 2011 American Institute of Physics.
2011
American Institute of Physics
Correction. Physics Today 1 July 2011; 64 (7): 12. https://doi.org/10.1063/PT.3.1149
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June 2011, page 49—The scan for figure 4 is courtesy of L-3 Communications Security and Detection Systems.