Saturday, May 21, 2011

1000 Millisieverts/Hr Debris Outside Reactor 3 at #Fukushima I Nuke Plant

These poor workers at the plant don't even need to go inside the Reactor 1 reactor building to get exposed to high radiation.

1000 millisieverts is 1 sievert.

Mainichi Shinbun (5/21/2011), citing information from TEPCO's press conference on May 11:


TEPCO announced on May 21 that the debris that emits 1000 millisieverts/hour radiation was found outside the reactor building of the Reactor 3, on the south side. According to TEPCO, it is a pile of concrete bits and paper-like materials. It is the highest radiation ever found on the debris outside the buildings.

And here's the latest contamination map ("survey map") from TEPCO, released on May 11. The debris is located between the Reactor 3 building and the concrete pump (that they call "elephant"). The radiation of 1000 millisieverts/hr was measured on the surface of the debris:

You can view all the past maps here.


Anonymous said...

Thank you for the Graphic. Spread it around on HP and Dutchsinse websites.

Anonymous said...

Robbie001 sez:

I wonder if this actually 1000 mSv/hr or are we still running up against the nuclear industry's refusal to actually quantify the true magnitude of emissions with inadequate measuring devices? I know I sound like a broken record but it really seems like the Japanese nuclear industry is working hard to setup the claim that the accident didn't generate more than 1000 mSv of "detected" radiation. They had to bulldoze shattered fuel assemblies you'll notice they didn't bother announcing the actual numbers that forced them to bury that problem.

The IAEA isn't really doing much just like a good international industry lapdog should. In the world of everyone's dreams agencies like the IAEA swoop in and force the truth to the surface. In the real world the IAEA are a group of well trained yes men that parrot the industry's platitudes and assurances. The nuclear club talks a good game through official organs like the IAEA but when it comes down to brass tacks the IAEA doesn't have any function other than to justify international nuclear operations they have no actual power to do anything. Just ask Israel, North Korea, India, Pakistan or soon enough Iran.

Anonymous said...

Yes, good point, the one sievert figure is merely their gauge redlining cuz it can't read higher. The radiation is off the scale, out in the open at the site. And all this has been known since the first week, but they act like they are only learning the truth as they go cautiously forward. Bullshit, they are under orders to let Honshu fry and they have done just as they were told.
I was in Japan just a year ago and my impression was too much Mickey Mouse, too much Bhernaysian methods, people taught not to think clearly about anything. Their much vaunted engineering expertise is phony, it really is not much better than the stupid Americans', but I digress.

Anonymous said...;O=D

Anonymous said...

Robbie001 sez:

Yep! The Japanese can't seem to muster up a decent radiation detection unit but back in the 1990's FEMA the people who brought us memorable quotes like ("Brownie, you're doing a heck of a job"!) managed to field a decent detection unit based on a military model. No wonder they keep refusing outside help the US and Russia both have the ability to accurately quantify high level nuclear contamination. Outsiders could burst the 1000 mSv ceiling they might also leak actual full spectrum isotope ratios.

It's too bad wikileaks happened before Fukushima. Could you imagine the industry panic an honest backdoor appraisal of the disaster would have generated? Another thing to keep in mind is the US flew U-2 spy planes & WC-135 Constant Phoenix missions near the plant in the early days of the disaster. There are groups trying to pry the information out with a FOIA request. I bet there is a lot of high level "diplomatic" wrangling going on to block that information release.

CD V-718 Capabilities (from the CD V-718 manual)
Detects, measures and displays level of gamma radiation dose rate from .001mR/hr to 10,000 R/hr with an auto ranging display.

Detects and displays level of Beta particle dose rate from .001mR/hr to 5R/hr.

Measures, stores and displays accumulated dose from .001mR to 9,999 R.

Flashes display to indicate reduced-accuracy condition when measuring dose rates above 1000R/hr.

Equipped with audio or visual alarms which trigger at pre-programmable dose rates and accumulated dose levels.

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