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@dean A chest scan will pick up thyroid, chest and stomach/intestine internal emmitters. These things are real sensitive and need to be in extreme low background or shielded area. Obviously only detect gamma, not alpha or beta. Better easy reference for limits In this report, the BIER V committee indicated that the risk of cancer death is 0.08% per rem for doses received rapidly (acute exposure). The risk from doses received over a long period of time (chronic exposure) might be as little as 0.04% per rem or 2-4 times lower. www.colorado.edu

@dean OK grandaughter had a problem, got tied up talk later

@RBeaner Ahh, I see what you are saying. I wasn't sure what the dose calculator you linked to was meant to imply, but I gotcha now. Yup.

@
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@dean My take is that Japan used to have lower "control Levels" than US, especially for the direct workers, but their actual limits, even their new emergency levels for workers, are similar to ours.

@estacion I'm not surprised at withholding the dat earlier, but this really surprises me "task force will carry out a monthly check of how TEPCO is proceeding ", monthly...monthly???

"But he said the task force now believes that panic can be avoided if it offers proper explanations on the projections. He also promised to promptly release all such data in the future." Unless it would cause panic.

"Already the 145 members of the Marines' elite Chemical Biological Incident Response Force are departing Japan, where they've been supporting radiation remediation efforts in the wake of the March earthquake. The unit has been recalled to the United States, ready to respond to any potential emergency as a result of an attack." abcnews.go.com

Another gov't prediction system failed in Fukushima nuclear accident www.japantoday.com "The system was put to the test for its ability this time, but proved useless as the twin disaster was larger than initially envisioned. It still remains unable to collect data from the No. 1 to 5 reactors at the crippled Fukushima plant."

@Markfm Indeed, but what of post blast displaced assemblies and rods... An assy, laying laterally atop the rack, with little or no water coverage per chance? I'm still dubious, just playing devil's advocate...

It would need to be lateral, and the camera would have to have a downward looking angle, else there would need to be a whole lot of them on their sides. Look at the daylight image, several posts below the nighttime. I just don't see a good downward look angle. Couple that with a cheap camera, at healthy distance, and I expect we have nothing more than imager artifacts.

@Markfm I'm with ya'. But the premise of visual radiation from SFP 4 is not far fetched. Where are the aerial/sat HD sensor images...

@Bobby1 Nish.

@Bo "sending all my bad energy to your job possibility"
I kinda' need that job, bad economy and all... Honda is dying on me.

@Rob in SF then I am sending all of my good energy to your potential job, although Hondas are cheaper here. Hopefully you can get to Japan anyways sometime. The offer for a beer still stands for whenever that is.

@bo I thought Hondas were cheaper here... We assemble them locally. I'm very due for Japan. Not kidding here... Base Civic is like $15,805. automobiles.honda.com

@bo Yes, because the engines are legally required to be replaced, no?

Tokyo Electric Power Co. (TEPCO) is struggling to carry out its plans to fill the containment vessel of the Fukushima No. 1 Nuclear Power Plant's No. 1 reactor with water to control radiation emissions, it has emerged.

Workers have already pumped in more than enough water to fill the containment vessel, but they have not actually seen a rise in the water level. Furthermore, when workers increased the amount of water pumped into the containment vessel, pressure inside the vessel fell, threatening a hydrogen explosion. As a result, workers had to once again reduce the amount of water. When pressure inside the containment vessel falls to a level near regular atmospheric pressure, oxygen can enter the container from outside and react with hydrogen inside to produce an explosion.

In a news conference on May 1, TEPCO said the amount of water being pumped into the reactor's pressure vessel had been brought back down from 10 to 6 tons per hour. As a result pressure inside the containment vessel rose to 1.4 times normal atmospheric pressure -- about the same level as before the amount of water was increased.

Officials said the water level inside the reactor's pressure vessel remained almost unchanged -- at about 1.6 meters above the top of the fuel rods -- when the amount of water was temporarily increased. With water pumped into the pressure vessel leaking out, workers estimate that the water level inside the containment vessel stands at about 6 meters, but they do not know the exact level.
mdn.mainichi.jp

The government has relaxed the standards it will implement when allowing residents living near the crippled Fukushima No. 1 Nuclear Power Plant to temporarily return to their homes to retrieve important items.

The government's headquarters for local disaster countermeasures met with officials from nine local bodies on May 1 and announced that it would allow up to two people from each household to return to collect items, a shift from its earlier position of allowing only one person to return.
mdn.mainichi.jp

@Nancy With that many "r"s?

Fukushima parents dump radioactive dirt bag at Parliment www.guardian.co.uk