RE: Idaho Falls SL-1 accident, Jan 1961

[David_S_Hyder@RL.GOV]

David,



Information is also available in a document written by LANL, A Review of

Criticality Accidents, 2000 Revision, LA-13638.  The SL-1 Accident is only

one page of the approximately 140 pages, I would be happy to fax it to you.

I don't remember where I downloaded the document from, it's about 3.7 Mbytes

in an Adobe Acrobat (.pdf) format.  It does say the reactor building was

seriously contaminated by the reactor water which carried fission products

with it.  Dose rates were 500 - 1000 R/h in the reactor building which

hampered the investigation.  There were 2 instant fatalities and a third

that died 2 hours later from a head injury.



Hope this helps,



David Hyder, CHP

(509) 373-9652

David_S_Hyder@rl.gov

Hanford's Facility Evaluation Board





-----Original Message-----

From: North, David [mailto:DNorth@LIFESPAN.ORG]

Sent: Monday, June 18, 2001 9:59 AM

To: 'RADSAFE'

Subject: Idaho Falls SL-1 accident, Jan 1961





Radsafers,



Could anyone point me in the correct direction for information regarding the

SL-1 reactor accident at Idaho Falls in January , 1961? I understand it

involved a major fission excursion, contamination of the facility, and three

deaths. Perhaps someone out there on the list actually worked on the

response and cleanup. Respond privately if you wish.



Thanks in advance for your help!



David L. North, Sc.M. DABR

Associate Physicist

Department of Medical Physics

Main Bldg Rm 317

Rhode Island Hospital

593 Eddy St.

Providence, RI 02903

ph: (401)444-5961

fax: (401)444-4446

dnorth@lifespan.org

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