Author Topic: Criticality the dangers of critical mass 1969  (Read 3710 times)

0 Members and 1 Guest are viewing this topic.

Online Homer J Simpson

  • Super Contributor
  • ***
  • Posts: 1123
  • Country: us
Criticality the dangers of critical mass 1969
« on: December 01, 2016, 02:22:28 am »

 
The following users thanked this post: TiN, daqq, ajb, gnavigator1007, villas

Offline CatalinaWOW

  • Super Contributor
  • ***
  • Posts: 3682
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #1 on: December 01, 2016, 03:20:56 am »
I guess I will never again espouse moderation in all things.
 

Offline BradC

  • Super Contributor
  • ***
  • Posts: 1678
  • Country: au
Re: Criticality the dangers of critical mass 1969
« Reply #2 on: December 01, 2016, 10:38:42 am »
Fabulous watch, but I kept waiting for the Goodies to pop in.
 

Offline Keicar

  • Regular Contributor
  • *
  • Posts: 73
  • Country: au
    • My YouTube Channel
Re: Criticality the dangers of critical mass 1969
« Reply #3 on: December 01, 2016, 12:11:49 pm »
Thanks for that, very interesting. There's also some good information on criticality accidents in a report from Los Alamos National Laboratory:

https://www.orau.org/ptp/Library/accidents/la-13638.pdf

When the film was made in 1969, the UK was yet to have a criticality accident - they had one in 1970, though.
 

Offline John Coloccia

  • Super Contributor
  • ***
  • Posts: 1199
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #4 on: December 01, 2016, 01:05:29 pm »
Interesting!

For anyone who wants a good read, somewhat related:

https://www.amazon.com/Manhattan-Project-Untold-Making-Atomic/dp/0595092381

I have the first edition in hardcover. Was my father's actually. It would have to be since it was published before I was born. I've read that book multiple times, and have found it enjoyable each and every time. It's far better written than many of the "bomb" books that have come out relatively recently, so if you've read any of those and didn't like them, don't let that turn you off from checking this one out.
 

Offline ajb

  • Super Contributor
  • ***
  • Posts: 1783
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #5 on: December 01, 2016, 06:48:33 pm »
"Surely You're Joking, Mr. Feynman" has a few interesting tidbits about criticality safety during the Manhattan project.  In particular he tells one (possibly apocryphal) story about being sent to inspect an enrichment facility before it becomes operational, where he sees workers rehearsing the process by rolling around cartloads of mock canisters of partially enriched material.  Alarmed, he turns to his guide and says "Why do you have that many canisters on one cart? Won't it explode*?!"  To which his guide says, "Explode?  Why on earth would it explode?"  The whole thing was such a tightly-kept secret that no one had told the plant workers were told they were dealing with fissile material, let alone the possible dangers of criticality due to improper handling!

* I don't know if "explode" is Feynman's embellishment, his shorthand for something more accurate but less flamboyant, or my misremembering of the story, but I'm pretty sure that's the word he used in the book.
 

Online Homer J Simpson

  • Super Contributor
  • ***
  • Posts: 1123
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #6 on: December 02, 2016, 01:41:25 am »

The Demon Core.

Another interesting read.

https://en.wikipedia.org/wiki/Demon_core

 

Offline CatalinaWOW

  • Super Contributor
  • ***
  • Posts: 3682
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #7 on: December 02, 2016, 04:02:28 am »
Another one.

http://www.world-nuclear.org/information-library/safety-and-security/safety-of-plants/tokaimura-criticality-accident.aspx

This report is relatively damning, but is not as scathing as some other reports I have seen of the same incident.
 

Offline TerraHertz

  • Super Contributor
  • ***
  • Posts: 3721
  • Country: au
  • Why shouldn't we question everything?
    • It's not really a Blog
Re: Criticality the dangers of critical mass 1969
« Reply #8 on: December 02, 2016, 04:09:48 am »
google  SL-1 nuclear reactor accident

In which criticality pinned a man to the ceiling.
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 

Offline MK14

  • Super Contributor
  • ***
  • Posts: 2650
  • Country: gb
Re: Criticality the dangers of critical mass 1969
« Reply #9 on: December 02, 2016, 05:33:07 am »
google  SL-1 nuclear reactor accident

In which criticality pinned a man to the ceiling.

 

Online Homer J Simpson

  • Super Contributor
  • ***
  • Posts: 1123
  • Country: us
Re: Criticality the dangers of critical mass 1969
« Reply #10 on: December 02, 2016, 02:35:00 pm »

On SL-1

" One of the shield plugs on top of the reactor vessel impaled the third man through his groin and exited his shoulder, pinning him to the ceiling."

"The bodies of all three were buried in lead-lined caskets sealed with concrete and placed in metal vaults with a concrete cover. Some highly radioactive body parts were buried in the Idaho desert as radioactive waste."
« Last Edit: December 02, 2016, 02:37:59 pm by Homer J Simpson »
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf