Editing Prompt criticality (section)

==List of accidental prompt critical excursions==
A number of research reactors and tests have purposely examined the operation of a prompt critical reactor plant. [[CRAC-II|CRAC]], [[Kinetics Experiment Water Boiler reactor|KEWB]], [[SPERT-I]], [[Godiva device]], and [[BORAX experiments]] contributed to this research. Many accidents have also occurred, however, primarily during research and processing of nuclear fuel. SL-1 is the notable exception.

The following list of prompt critical power excursions is adapted from a report submitted in 2000 by a team of American and Russian nuclear scientists who studied [[criticality accident]]s, published by the Los Alamos Scientific Laboratory, the location of many of the excursions.<ref>''[https://web.archive.org/web/*/http://www.csirc.net/docs/reports/la-13638.pdf A Review of Criticality Accidents]'', Los Alamos National Laboratory, LA-13638, May 2000. Thomas P. McLaughlin, Shean P. Monahan, Norman L. Pruvost, Vladimir V. Frolov, Boris G. Ryazanov, and Victor I. Sviridov.</ref> A typical power excursion is about 1 x 10<sup>17</sup> fissions.
* [[Harry Daghlian#Criticality accident|Los Alamos Scientific Laboratory]], 21 August 1945
* [[Louis Slotin#Criticality accident|Los Alamos Scientific Laboratory]], 21 May 1946
* Los Alamos Scientific Laboratory, December 1949, 3 or 4 x 10<sup>16</sup> fissions
* Los Alamos Scientific Laboratory, 1 February 1951
* Los Alamos Scientific Laboratory, 18 April 1952
* Argonne National Laboratory, 2 June 1952
* Oak Ridge National Laboratory, 26 May 1954
* Oak Ridge National Laboratory, 1 February 1956
* Los Alamos Scientific Laboratory, 3 July 1956
* Los Alamos Scientific Laboratory, 12 February 1957
* [[Mayak Production Association]], 2 January 1958
* [[Y-12 National Security Complex|Oak Ridge Y-12 Plant]], 16 June 1958 (possible)
* Los Alamos Scientific Laboratory, [[Cecil Kelley criticality accident]], 30 December 1958
* [[SL-1]], 3 January 1961, 4 x 10<sup>18</sup> fissions or {{convert|130|MJ|kWh}}
* [[Idaho Chemical Processing Plant]], 25 January 1961
* Los Alamos Scientific Laboratory, 11 December 1962
* [[Sarov]] (Arzamas-16), 11 March 1963
* [[White Sands Missile Range]], 28 May 1965
* Oak Ridge National Laboratory, 30 January 1968
* [[Chelyabinsk-70]], 5 April 1968
* [[Aberdeen Proving Ground]], 6 September 1968
* Mayak Production Association, 10 December 1968 (2 prompt critical excursions)
* [[Kurchatov Institute]], 15 February 1971
* Idaho Chemical Processing Plant, 17 October 1978 (very nearly prompt critical)
* [[Soviet submarine K-431]], 10 August 1985<!-- Or was there a reason why K-431 was not included here? -->
* [[Chernobyl disaster]], 26 April 1986<!-- Or was there a reason why Chernobyl was not included here? -->
* Sarov (Arzamas-16), 17 June 1997
* [[Tokaimura nuclear accident|JCO Fuel Fabrication Plant]], 30 September 1999