Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

The drama of plutonium
Nuclear Engineering International ^ | July 2005 | David Fishlock

Posted on 07/21/2005 11:25:01 AM PDT by Ditto

click here to read article


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-67 last
To: Red Badger
Scary

Thr Trinity explosion device was carried on his lap. An equally powerful explosion could be carried in a backpack onto a subway.......

61 posted on 07/21/2005 2:37:47 PM PDT by GOPJ (A person who will lie for you, will lie against you.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: GOPJ

Several feet of high explosive around it, however??? That would be one bulky backpack


62 posted on 07/21/2005 2:49:58 PM PDT by HiTech RedNeck (No wonder the Southern Baptist Church threw Greer out: Only one god per church! [Ann Coulter])
[ Post Reply | Private Reply | To 61 | View Replies]

To: Tarantulas
But the one that always horrified me was this one...

Yes, I read about that incident. Imagine turning on a stirrer and all hell breaks loose. I don't understand why they opine that maybe the "flash" happened because of a short-circuit in the stirrer motor. Daghlian and Slotin got much smaller doses and in those cases witnesses described seeing a "blue flash" of Cherenkov radiation. It would seem to me that there would have been a hell of a blue flash in this case if the guy got 12K rad.

Maybe the radiation blast was so intense that it broke down the insulation inside the motor and that shorted it out.

For me the most chilling story is the one about the Israeli guy who went into a radiation sterilizer to clear a product jam while the cobalt-60 source was exposed (the product jam hid it from visibility, but didn't hid him from the radiation).

Google the phrase Soreq JS6500 to find it. The guy was exposed between one and two minutes (he wasn't sure how long) at 1000 rad/minute. He lasted 36 days, but was given heroic levels of treatment including a bone marrow transplant from his brother.

(steely)

63 posted on 07/21/2005 2:57:40 PM PDT by Steely Tom (Fortunately, the Bill of Rights doesn't include the word 'is'.)
[ Post Reply | Private Reply | To 59 | View Replies]

To: HiTech RedNeck
Several feet of high explosive around it, however??? That would be one bulky backpack

Nah, I was quoting a different poster. That's why his comments were in italics. Just like yours are now. I agree with you that having a large lawn mower or small car in your backpack might be a giveaway. Still, I have no doubt that Muslims can get an EMP up in the air. Maybe not today, or tomorrow, but soon. I don't underestimate them...

64 posted on 07/21/2005 3:34:42 PM PDT by GOPJ (A person who will lie for you, will lie against you.)
[ Post Reply | Private Reply | To 62 | View Replies]

To: Steely Tom

It has been a while (1978) since my NRRPT certification, but I do recall that the blue flash of Cerenkov radiation occurs within the liquid of the observer's eyeball. They used to say that if you see the blue flash, you're a dead man.

The full Soreq report is here (Adobe Acrobat PDF document):

http://www-pub.iaea.org/MTCD/publications/PDF/Pub925_web.pdf

The report includes some pictures of the victim in various stages of acute radiation syndrome, and lots of microscopic pictures of different organs showing the radiation damage. It all goes to show that you should never bypass safety systems and interlocks, especially when you're dealing with a source measuring 340,000 Curies!


65 posted on 07/22/2005 10:07:45 AM PDT by Tarantulas (http://borderpundit.tarantulas.net - the BorderPundit blog - a Border Issues weblog)
[ Post Reply | Private Reply | To 63 | View Replies]

To: Steely Tom

Maybe this is why John Cusack is so far left now? :)


66 posted on 07/22/2005 10:17:42 AM PDT by JZelle
[ Post Reply | Private Reply | To 9 | View Replies]

To: Tarantulas
but I do recall that the blue flash of Cerenkov radiation occurs within the liquid of the observer's eyeball. They used to say that if you see the blue flash, you're a dead man.

Wow! Damn.

Thanks for that.

That answers one of my questions. I was wondering how you get Cherenkov radiation in free air, because my understanding was that C-radiation is caused when charged particles going at nearly the speed of light penetrate a boundary between a fast-speed-of-light medium and a slower-speed-of-light medium (like free space to water).

Your explaination sounds right. If you are unlucky enough to witness a criticality accident at close range, you don't see a sheath of blue light around the fuel, like that underwater in a cooling pool. The blue flash you see is actually inside your eye, as alpha or beta particles shoot through you.

The Soreq incident guy reported that his "were burning," but not a blue flash. Maybe it was too dim for him to notice in the ambient light of the sterilizer chamber. His dose was accumulated over a fairly long time, compared to that of the individuals at Los Alamos who were, after all, working with weapons-grade material.

Spooky stuff. Not that I wouldn't mind working with it myself.

(steely)

67 posted on 07/22/2005 10:22:59 AM PDT by Steely Tom (Fortunately, the Bill of Rights doesn't include the word 'is'.)
[ Post Reply | Private Reply | To 65 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-67 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson