Editing Dislocation (section)

==== Irradiation ====
Dislocation loops may form in the damage created by [[Radiation damage|energetic irradiation]].<ref>{{Cite journal|last=Eyre|first=B. L.|date=February 1973|title=Transmission electron microscope studies of point defect clusters in fcc and bcc metals|journal=Journal of Physics F: Metal Physics|language=en|volume=3|issue=2|pages=422–470|doi=10.1088/0305-4608/3/2/009|bibcode=1973JPhF....3..422E|issn=0305-4608}}</ref><ref>{{Cite journal|last=Masters|first=B. C.|date=1965-05-01|title=Dislocation loops in irradiated iron|journal=The Philosophical Magazine|volume=11|issue=113|pages=881–893|doi=10.1080/14786436508223952|bibcode=1965PMag...11..881M|s2cid=4205189 |issn=0031-8086}}</ref> A prismatic dislocation loop can be understood as an extra (or missing) collapsed disk of atoms, and can form when [[Interstitial defect|interstitial atoms]] or vacancies cluster together. This may happen directly as a result of single or multiple [[collision cascade]]s,<ref>{{Cite journal|last1=Kirk|first1=M. A.|last2=Robertson|first2=I. M.|last3=Jenkins|first3=M. L.|last4=English|first4=C. A.|last5=Black|first5=T. J.|last6=Vetrano|first6=J. S.|date=1987-06-01|title=The collapse of defect cascades to dislocation loops|journal=Journal of Nuclear Materials|language=en|volume=149|issue=1|pages=21–28|doi=10.1016/0022-3115(87)90494-6|bibcode=1987JNuM..149...21K|issn=0022-3115|url=https://digital.library.unt.edu/ark:/67531/metadc1095269/}}</ref> which results in locally high densities of interstitial atoms and vacancies. In most metals, prismatic dislocation loops are the energetically most preferred clusters of self-interstitial atoms.