Editing Iridium (section)

=== Medical imaging ===
The radioisotope [[iridium-192]] is one of the two most important sources of energy for use in industrial [[Industrial radiography#Radioisotope sources|γ-radiography]] for [[non-destructive testing]] of metals.<ref>{{cite journal| title=The use and scope of Iridium 192 for the radiography of steel| first=R.| last=Halmshaw| date=1954| journal=British Journal of Applied Physics| volume=5| issue=7| pages=238–243| doi=10.1088/0508-3443/5/7/302| bibcode=1954BJAP....5..238H}}</ref><ref name="Hellier">{{cite book| last=Hellier| first=Chuck| title=Handbook of Nondestructive Evlaluation| publisher=The McGraw-Hill Companies| date=2001| isbn=978-0-07-028121-9}}</ref> Additionally, {{SimpleNuclide|Ir|192}} is used as a source of [[gamma radiation]] for the treatment of cancer using [[brachytherapy]], a form of radiotherapy where a sealed radioactive source is placed inside or next to the area requiring treatment. Specific treatments include high-dose-rate prostate brachytherapy, biliary duct brachytherapy, and intracavitary cervix brachytherapy.<ref name="Emsley" /> [[Iridium-192]] is normally produced by neutron activation of isotope [[iridium-191]] in natural-abundance iridium metal.<ref name="iridium-192">{{cite book |author1=Jean Pouliot |author2=Luc Beaulieu |chapter=13 – Modern Principles of Brachytherapy Physics: From 2-D to 3-D to Dynamic Planning and Delivery |editor1=Richard T. Hoppe |editor2=Theodore Locke Phillips |editor3=Mack Roach |title=Leibel and Phillips Textbook of Radiation Oncology |edition=3rd |publisher=W.B. Saunders |year=2010 |pages=224–244 |isbn=9781416058977 |doi=10.1016/B978-1-4160-5897-7.00013-5 |url=https://www.sciencedirect.com/topics/medicine-and-dentistry/iridium-192}}</ref>