Talk:Criticality accident

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(less than 1 m)[edit]

"Although process accidents occurring outside of reactors are characterized by a large release of radiation, the release is localized and has caused fatal radiation exposure only to persons very near to the event (less than 1 m), resulting in 14 fatalities. No criticality accidents have resulted in nuclear explosions.[1]"

Is that "less than 1 meter" or "less than 1 mile" ? 2601:645:4100:BED2:BC37:B9E2:D06A:F3C0 (talk) 07:34, 21 August 2015 (UTC)

1 meter, obviously. If everyone within 1 mile of a criticality accident died there would have been hundreds, if not thousands, of fatalities, including everybody who worked at Los Alamos. Being 1 mile away from something can hardly be described as being 'very near'. nagualdesign 11:30, 21 August 2015 (UTC)
I would modify that to "several meters". When Chernobyl exploded, four engineers looked down into the wreckage from a platform somewhat above the reactor floor, past the displaced reactor lid and subsequently died of ARS, thought to be caused by gamma damage to their heads. See Deaths due to the Chernobyl accident, names Kudryatsev, Proskuryakov, Perevozchenko and Sitnikov. At the distance of a mile, the radiation is reduced by the shielding effect of air by a factor of 1000, and additionally by the square-cubed law. SkoreKeep (talk) 18:10, 21 August 2015 (UTC)
No, when Chernobyl exploded, the spilled "stuff" are highly radioactive, being inside of a reactor and all. Although this material is highly radioactive, the material themselves is not at critical state. Imagine that the liquidators (or so they are called) being in a food irradiation plant, and die from ARS. — Preceding unsigned comment added by 192.12.184.7 (talk) 23:00, 8 April 2016 (UTC)
Ah, OK. The sentence is restricted to "process accidents", those outside power plants, and from the source, those specifically in the US atomic bomb program. Stand corrected about the meter. SkoreKeep (talk) 18:16, 21 August 2015 (UTC)

Edit the table[edit]

Can someone edit the table to update the recorded criticality accidents per LA-13638? Currently, it is grossly incorrect. — Preceding unsigned comment added by 192.12.184.7 (talk) 22:44, 20 June 2016 (UTC)

HTRE-3[edit]

Is there a reason that the HTRE-3 excursion is excluded from both this list and the articles Nuclear-powered aircraft and Aircraft Nuclear Propulsion? [1] — Preceding unsigned comment added by 75.85.96.25 (talk) 22:39, 25 June 2016 (UTC)

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  1. ^ Summary Report of HTRE No.3 Nuclear Excursion: http://www.osti.gov/scitech/servlets/purl/4643464