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Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Patrick wrote ...
that outer-most building does look like it went "high order" sonic or transonic pressure wave shooting straight up, through the roof of the buidling/containment pressure vessel. Really looks like a steam explosion. Shit...
Hopefully the pressure vessel will remain intact, if it is significantly breeched (as with Chernobyl) California (And thus ME) will be glow in the dark shortly.
In slow motion, I see how super high velocity that initial wave is! First youll see a shock then it dissipates, only after the initial wave is long gone, do you see materials flying apart.
Im getting worried, does anyone have the iodine thyroid pills? I may need them, as I live in CA.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Is the "roof" just some flimsy structure built around the main pressure vessel? All of the reactors ive seen here in the US are pressure vessle enclosed, (for precisely this reason). I presume the Japanese share many design factors with our GE reactors?
Spring break hasnt even started yet and Ceisium 137... great, just great.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
Patrick wrote ...
Is the "roof" just some flimsy structure built around the main pressure vessel? All of the reactors ive seen here in the US are pressure vessle enclosed, (for precisely this reason). I presume the Japanese share many design factors with our GE reactors?
Spring break hasnt even started yet and Ceisium 137... great, just great.
The reactor is underground. The building just houses the cranes, etc. The confusion seems to be what the Japanese authorities refer to as the 'reactor ceiling', and whether the reactor roof collapsed, causing the building above to fill with hydrogen and explode, or whether the explosion breached the reactor, or whether it was just the building that exploded after a release of hydrogen.
Apparently radiation levels near the reactor are such that one hour's exposure is equivalent to the normal exposure in a year. Is anyone able to interpret anything from this? (around 9000 times normal levels)
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
I realise that the reactor itself is underground, but is anything in the above-ground box shaped building needed to operate the reactor? There is a lot of important equipment external the the reactor, right?
I realise the explosion could just as likley have been Hydrogen as steam caused.
Isnt "1000 times above background" pretty close to harmless even for several hours? was it not assumed by the russians that at chernobyl 500 roentgens per hour for 3 hours was likley to be fatal? Is even one Roentgen a big number?
what exposure spectrum can someone post here? like from harmless upto super-dooper dead.
EDIT: I presume particulate exposure to the physical source is the worst case, even at a lower emission average rate?
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Hmm, BBC News seems to suggest that the core may be intact. The only major issue now is if the (presumably hydrogen) explosion has destroyed the cooling system entirely as this could lead to a meltdown.
The BBC "expert" just said "Fusion reaction"... WTF.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Conundrum wrote ...
The only major issue now is if the (presumably hydrogen) explosion has destroyed the cooling system entirely as this could lead to a meltdown.
Yep. Ive been hearing from the talking head media, that the Tsunami came into thier buildings... flooding electrical pannels/pedastals, and damaging the cooling system to the point that they were unable to shed enough heat load for a normal shutdown.
Im sure these reactors have a negative void coeffcient, as opposed the chernobyl's positive void coef. so maybe it will just be a mere 3-mile island?
... not Russel! Registered Member #1
Joined: Thu Jan 26 2006, 12:18AM
Location: Tempe, Arizona
Posts: 1052
Patrick wrote ...
Im getting worried, does anyone have the iodine thyroid pills? I may need them, as I live in CA.
Let's keep the panic under control. Sunblock would be a wiser investment at this point.
Patrick wrote ...
Yep. Ive been hearing from the talking head media, that the Tsunami came into thier buildings... flooding electrical pannels/pedastals, and damaging the cooling system to the point that they were unable to shed enough heat load for a normal shutdown.
Im sure these reactors have a negative void coeffcient, as opposed the chernobyl's positive void coef. so maybe it will just be a mere 3-mile island?
The reactor is shut down, no more fission is taking place on a significant level. It just takes a while for all the residual radioactive isotopes to decay enough that residual heat is no longer an issue. There is essentially zero chance, for a multitude of reasons, for a Chernobyl style release of radiation.
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Nuclear events taking place in Japan.
