[ RadSafe ] SL1 Accident Video

alstonchris at netscape.net alstonchris at netscape.net
Tue Jul 5 19:11:50 CDT 2011

 Ladies and Gents

David's suggestion of the archive.org site is hugely useful.  For one thing, it is just a great site, a veritable cornucopia.  Specifically, the SL-1 videos, to which it hyperlinks, are offered by the NTIS.  So, yes, these are the real things.  You have a nice choice of file formats (and file sizes) from which to choose.




-----Original Message-----
From: David Matchick <dmatch at prolog.net>
To: alstonchris <alstonchris at netscape.net>
Cc: terryj <terryj at iit.edu>
Sent: Sat, Jul 2, 2011 9:03 am
Subject: Re: [ RadSafe ] SL1 Accident Video

Mr. Alston,

The SL-1 accident film is also available by video download (for free) 
from www.archive.org.  From what I recall it is the original SL-1 film 
at this link:



David Matchick

On 7/1/2011 11:26 PM, alstonchris at netscape.net wrote:
> Folks
> As long as we are on the subject, does anyone know if there is a DVD 
(preferably digitally-remastered) of the famous movie about the accident?  I 
have no problem paying a reasonable charge.  It is something that every HP 
really should have on her/his shelves, no?
> Cheers
> cja
> -----Original Message-----
> From: Jaro Franta<jaro-10kbq at sympatico.ca>
> To: 'The International Radiation Protection (Health Physics) Mailing 
List'<radsafe at health.phys.iit.edu>
> Sent: Tue, Jun 21, 2011 8:11 pm
> Subject: Re: [ RadSafe ] SL1
> Hi Spencer,
> INL's on-line history book has a detailed (9.3MB pdf) account of SL-1 in
> chapter 15:
> http://www.inl.gov/proving-the-principle/chapter_15.pdf
>   Jaro
> ^^^^^^^^^^^^^^^^^^^^^^^^^
> (AECL Montreal office)
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu
> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of SFisher373 at aol.com
> Sent: June-21-11 7:24 PM
> To: radsafe at health.phys.iit.edu
> Subject: [ RadSafe ] SL1
> Franz et al,
> I would say that sabotage is not the correct word to use.  We present  the
> SL1 accident to our students, and I have read the reports, investigations
> etc.  I am at home, so do not have the facts in front of me.  What  happened
> was that contrary to what was posted yesterday, they were working on  the
> control rods, not the fuel rods.  The central rod controlled 80% of the
> reactor power.  The work involved stroking the control rods.  For some
> reason,
> unknown, the one individual removed the control rod.  He had broken  up with
> his wife on the day of the incident and had his personal belongings in  the
> car.  So was he distracted, was he trying to injure himself to get
> sympathy, was it a murder/suicide (he felt that his wife may have been
> cheating
> with the other operator on duty that day).  This was after the Christmas
> holidays/New Year.
> The magnitude of the excursion was greater than had been predicted.   There
> are accounts that since this was a military reactor, it was known that
> removing the central rod would cause the reactor to overheat and be
> damaged.
> What happened was the water turned to steam and the resulting  steam hammer
> produced an effect far greater than predicted.
> So it was a human problem, and since no one lived, we will never  know.
> Spencer M. Fisher
> Nuclear Theory and Reactor Physics
> Authorization Training
> Ontario Power Generation.
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