Editing Nuclear technology (section)

===Commercial applications===
*[[radioluminescence]]
*[[tritium illumination]]: [[Tritium]] is used with [[phosphor]] in rifle sights to increase nighttime firing accuracy. Some runway markers and building exit signs use the same technology, to remain illuminated during blackouts.<ref>{{cite web|url=http://www.physics.isu.edu/radinf/tritium.htm|title=ISU Health Physics Radinf|website=www.physics.isu.edu|access-date=9 May 2018|url-status=live|archive-url=https://web.archive.org/web/20170921123842/http://www.physics.isu.edu/radinf/tritium.htm|archive-date=21 September 2017}}</ref>
*[[Betavoltaics]].
*Smoke detector: An ionization [[smoke detector]] includes a tiny mass of radioactive [[americium]]-241, which is a source of [[alpha radiation]]. Two ionisation chambers are placed next to each other. Both contain a small source of <sup>241</sup>[[Americium|Am]] that gives rise to a small constant current. One is closed and serves for comparison, the other is open to ambient air; it has a gridded electrode. When smoke enters the open chamber, the current is disrupted as the smoke particles attach to the charged ions and restore them to a neutral electrical state. This reduces the current in the open chamber. When the current drops below a certain threshold, the alarm is triggered.