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Re: Characteristics of criticality accidents
Bjorn
a report describing all 60 accidents will be issued shortly by LANL. I
suggest that you obtain a copy.
As far as 'classification' is concerned it has a lot to do with
definitions, which are often blurred by judgement. There are many ways
accidents can be categorised. A classification by facility type (French)
can be found in:
http://www.ipsn.fr/presse/dossiers/dossiers/DP_CRITICITE.htm
1. criticality accidents in fuel cycle facilities
2. criticality accidents in research reactors and labs with critical
assemblies
This list contains 59 accidents. The 60th (JCO) belongs to the first
type.
Other sources of information are:
1) http://orion.lanl.gov/ncs/index.htm
2) Table of Criticality Accidents, 1945-1970:
http://www.enviroweb.org/issues/nuketesting/accident/index.html
3) CRITICALITY ACCIDENTS IN USAEC FACILITIES:
http://www.enviroweb.org/issues/nuketesting/accident/crittabl.htm
>
> Date: Fri, 25 Feb 2000 12:00:15 GMT
> From: "Bjorn Cedervall" <bcradsafers@hotmail.com>
> To: radsafe@romulus.ehs.uiuc.edu
> Subject: Characteristics of criticality accidents
> Message-ID: <20000225120015.48627.qmail@hotmail.com>
>
> According to the previous information here at Radsafers, a total of about 60
> criticality accidents have occurred. The one in Tokaimura was characterized
> by a "pseudo-stability" state and lasted for more than about 10 hours. Other
> criticality accidents may have involved pulsed states. Does any one have an
> overview of the number of criticality accidents of these different
> sub-categories?
>
> Bjorn Cedervall bcradsafers@hotmail.com
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