Japan Earthquake

Japan Earthquake | Page 2432

@ lilly,,, I was looking down through some of the NRC FOIA information and ran accross a document that ORNL did and it had a descent write up on the melt of a brw1 with some postulated paths of corium.... I'll have to wait to find the exact one until after I get back... but I wanted to relay the information
by dean 9/30/2011 1:05:32 PM

@dean good find. let me know once you have a chance to find it. I am putting together news stories and then need to be out of the office for the rest of the morning. Should be around this afternoon and evening. Going to start going through NRC docs more over the weekend and will probably come up with some sort of notes system to centralize findings.
by lillymunster 9/30/2011 1:13:45 PM

One thing I did notice was the reliance on the internet by the NRC to get information on the disaster early on. They were getting little or no information out of Japan.
by lillymunster 9/30/2011 1:15:06 PM

@Ian Ibaraki lots of readings main links page still looking for the meti one www.pref.ibaraki.jp
by elainekirk 9/30/2011 1:15:39 PM

www.ornl.gov @ LILLY AND ELAINE.. my present to you for reading
by dean 9/30/2011 1:19:36 PM

@Ian radioactivity.mext.go.jp
Monitoring data at Ibaraki prefecture (14:00 September 27,2011)
No map but the latest readings
by elainekirk 9/30/2011 1:20:53 PM

@elainekirk, thanks! Here's a lesser version : www.barc.gov.in
by Ian 9/30/2011 1:21:13 PM

The list of cattle which might be fed the rice straw
www.mhlw.go.jp
not a public doc as such that it isnt in the press packs just came up in the trawling
by elainekirk 9/30/2011 1:23:35 PM

atomicinsights.com @ lilly and elaine.. another little gem... with video of TMI when they took the core apart
by dean 9/30/2011 1:30:11 PM

It's strange how this most-epic map of Mext data www.nnistar.com isn't findable by way Mext's website. The best Mext maps are not to be found in its archive of maps.
by Ian 9/30/2011 1:36:53 PM

atomicinsights.com video inside North Anna after quake
by dean 9/30/2011 1:39:48 PM

Here's an in-Japanese report showing a map of where Plutonium was found in the soil as Elaine noted earlier today : www.youtube.com
by Ian 9/30/2011 1:43:48 PM

An in-English report on the plutonium find : news.nationalpost.com "The highest density of plutonium-239 and 240 — 4.0 becquerels per square metre — was registered in a town some 30 kilometres from the plant, the ministry said."
by Ian 9/30/2011 1:45:58 PM

Dear residents of Japan,
We have just detected plutonium all over outside the 20km zone. So in response we have lifted the 30km zone so you can all go home!
Yours,
The Japanese Government
by lillymunster 9/30/2011 1:47:22 PM

I just found this and some diagrams etc to be honest I don't know what it is but thought it worth showing www.mext.go.jp
by elainekirk 9/30/2011 1:50:34 PM

@Ian They found it in JUNE and mention it now?
by lillymunster 9/30/2011 1:52:28 PM

@lillymunster, yeah! But the levels are within ranges that had been detected pre-tsunami, so it could be argued that this wasn't from the Fukushima melts, unless there's some attributive factor beyond just the levels detected.
by Ian 9/30/2011 2:00:17 PM

Stacy and Tracy + plutonium jolisfukyu.tokai-sc.jaea.go.jp
by elainekirk 9/30/2011 2:04:23 PM

time to travel home.. will be back later
by dean 9/30/2011 2:04:49 PM

@Ian They mentioned this for a reason, the statement that the levels are supposedly at bomb test levels is an after thought. Maybe they are trying to head off the research being released by the expert that has been doing his own testing? They seem to admit it is fukushima though...
by lillymunster 9/30/2011 2:10:51 PM

Hi all.

@Ian I'm sorry about that earlier, had to get some sleep. Well, there you have it. From Edano's posts about those radiation peaks in the drywell we can assume that most, if not all, of the core hasn't yet left the building, unlike Elvis. Otherwise the radiation spikes wouldn't be monitored inside the buildings every time the earth shakes. You'd never have a 400-500 Sv/h reading in the drywell if the core was all underground, out of the unit. Maybe Dean can help. Have you asked him about the simulations I had mentioned earlier?
by Pedro Jesus 9/30/2011 2:13:55 PM

hi @ Pedro
by dean 9/30/2011 2:14:42 PM

@Pedro Jesus the corium document I was reading talks at length about the corium moving into the drywell. If they managed to cover it with water the corium under the crust could have been gradually dropping down into the drywell area. But at a much slower rate. This is the document pbadupws.nrc.gov

The late in the game nature is odd. The only thing I can think of is cooling slowed down the progression and the quake open up cracks or cause more to spill down near the sensor with each new amount adding to the radiation.
by lillymunster 9/30/2011 2:24:18 PM

out for a while
by lillymunster 9/30/2011 2:31:12 PM

see yall later..
by dean 9/30/2011 2:36:12 PM

@lillymunster @dean See you later.
by Pedro Jesus 9/30/2011 2:36:35 PM

GE Hitachi, which made First Energy Corp.’s Perry, Ohio, plant on Lake Erie, about 120 miles northwest of Pittsburgh, and Exelon Corp.‘s Oyster Creek plant in New Jersey, is recommending testing to determine what level of friction would prevent control rods from fully inserting into the reactor core during an earthquake, according to filings with the Nuclear Regulatory Commission.

“There is no discussion of a recall of any control rods at this point,” Neil Sheehan, a Philadelphia-based spokesman for the commission, said in an e-mail. “The focus is on testing as evaluations continue on whether any modifications are necessary.” enformable.com
by Majj 9/30/2011 2:48:19 PM

@Pedro Jesus where is this 400-500 sv/h reading from? Wouldn't that be right on top of the damaged fuel???
by artnuke 9/30/2011 3:15:56 PM

@artnuke I would think the sensor would be not far from where the fuel is sitting but not too close either. The amount of fuel in those RPVs could deliver far higher radiation levels if only they let it heat up more and become critical.
by Pedro Jesus 9/30/2011 3:22:15 PM

Can anybody work out why they are charging customers for electricity? surely they are not feeding electricity into the evac zone? or are they ? www.tepco.co.jp
by elainekirk 9/30/2011 3:23:29 PM

At 2:19 pm on September 30, the oil separator treated water transfer
pump was tripped due to overload so that the Cesium adsorption apparatus
also tripped. The cause of the overload is currently under investigation. www.tepco.co.jp
by elainekirk 9/30/2011 3:25:20 PM

@elainekirk From skimming through that article about the electricity bills, they mean electricity bills from the new location, not the precious location, so, not inside the evac zone.
by Pedro Jesus 9/30/2011 3:28:26 PM

Frank Daulton Phd, an american professor teaching near Kyoto Japan reports that high levels of radiation are being found as far away as a Kyoto and beyond. He has been doing his own measuring and says the reason why people who measure themselves are finding higher levels of radiation is because official government readings are coming from atop government buildings 20 to 30 meters off the ground. He also reports that he is sending is family to live outside Japan, and that many others are doing the same. According to his story the "Radiation Evacuees" have already quietly started their exodus. You can read the rest of what he had to say here: www.earthfiles.com
by tippytoe 9/30/2011 3:36:23 PM

@Pedro Jesus glad to hear it ty for that
by elainekirk 9/30/2011 3:36:53 PM

@tippytoe HI! Long time, no see. Tepco took your tent suggestion to heart, eh?
by M.I.A. 9/30/2011 3:44:22 PM

Haha... I'm surprised you remember that, but yeah it looks like it.
by tippytoe 9/30/2011 3:45:39 PM

@you precious = previous (need coffee)
by Pedro Jesus 9/30/2011 3:47:42 PM

Fukushima’s Contamination Produces Some Surprises at Sea
green.blogs.nytimes.com
by Panserbjorne9 9/30/2011 3:59:18 PM

funny headline. "Tepco Faces 'Zombie' Future as Fukushima Damage Claims Mount" www.sfgate.com
by Panserbjorne9 9/30/2011 4:00:46 PM

The nuclear power plans that have survived FukushimaSciDev.Net reporters from around the world tell us which countries are set on developing nuclear energy despite the Fukushima accident www.guardian.co.uk
by Panserbjorne9 9/30/2011 4:03:00 PM

1995-2005 Persistent Quest
the running record covering ten years of Japans atomic research
jolisfukyu.tokai-sc.jaea.go.jp
by elainekirk 9/30/2011 4:04:26 PM

Fukushima Sievert Spectrum

apr 11 "document from the Operations Center detailing radiatin levels around Fukushima"
p.46
512 sv/hr DW #1 March 11, 2011 range 70-512
atmc.jp
30 sv/hr in dry wells unit 1, 2
20 sv/hr near drywell 3
--- will kill you ---
>1 sv/hr surface unit 2 water
1 sv/hr debris outside of reactor 3
--- will make you sick ---
u=micro
--- may cause long term health problems ---
645 usv main building
170 usv 30 km away high, decreasing to 25
82 usv/hr main gate
--- equal to normal levels ---
0.4 usv Sept 2011 professor in Kyoto 311 miles away
www.earthfiles.com
0.03 usv - official measurement in Tokyo
www.earthfiles.com
0.03-0.08 usv Tokyo radiation levels = background level
by artnuke 9/30/2011 4:56:04 PM

atmc.jp I don't understand this chart. Says 512 SV/hr in drywell #1, but it's not 9/30 yet, seems to go back to 6/30, dated march 11
by artnuke 9/30/2011 5:23:05 PM

@artnuke it's actually 10/1 in Japan now very confusing isn't it
by elainekirk 9/30/2011 5:23:55 PM

nice graphic radiation dose chart
xkcd.com

100 msv - dose limit for emergency workers protecting valuable
property

250 msv - dose limit for emergency workers in lifesaving operations

400 msv - causes symptoms of radiation poising if received in a short
time

2000 msv severe radiation poisining, sometimes fatal

4000 msv - usually fatal, sometimes survive with prompt treatment

8000 msv - fatal even if treated.
by artnuke 9/30/2011 5:26:34 PM