ScribbleLive

@lilly.. IF the radiation levels are that high at the penetration, even if the camera went inside a foot, as you can see that white out tells us something... potentially that the high rad level is directly related an extremely high radiation source some number of feet away and that would have to be the fuel corium material

we'd have to subtract the thickness of the penetration wall and even then to get to those levels,,,, something extremely high in radiation level is causing such high readings

@lilly, not sure on the standard height but maybe we could search for the number on google and see what pops up

another thing @lilly.. if the radiation level was that high inside, there would be a radiation beam shining through that penetration and the people there could have received alot of dose fast

2at least @ lilly especially where that is the thickest part due to having the air lock access door

looking on the elevation drawing for the thickness.. duh. :-)

@lilly can you translate that page? ... the photos are interesting

No guarantee that it is the same at Fukushima, but in a US BWR-3/4, penetration X-53 was used for initial power testing. It is located below the centerline of the spherical portion of the drywell, but above the top of the vent pipes from the drywell to the torus. That is consistent with boring being performed on the first floor of the reactor building.

www3.nhk.or.jp On 17 January workers entered into the north-west part of unit 2's reactor building first floor and drilled in the spare penetration the hole through which the endoscope will be inserted. The work is made by ten teams of four people, which makes a workforce of 40. They were trained in drills performed at unit 5 in order to spend as little time as possible. The maximum exposure was 3 mSv. On 18 January they will do preparation work such as installing the endoscope and on 19 January they will start taking pictures with it.

ty lilly,,,, not sure what to make out of the maximum exposure of 3msv probably for the workers as opposed to the rad levels right inside through the wall... still, if the camera white out occured that's the rad level... I've done it before with cameras and they are the sure sign that rad levels are getting too high

@dean the 3 mSv was based on the day they drilled the hole. Happy seemed to say TEPCO was just ballparking the exposure from that day and using the previous excursion. Sounds like more TEPCO bS

www.tepco.co.jp @ lilly, video of trial run at 5

there are men walking down around where those conduits run to the boxes which means they were inside the PCV area when they shot the video

@lilly, maybe the camera going to white out would be a good basis for the rad levels inside

yes

need to be convinced that what we really saw was whiteout of the cam as opposed to something else tho

our theory will have that assumption, the best we can see is white out on the camera

I don't know if it was due to where they put the camera or the time duration of using it but the images degraded as the time went on in the videos.

@dean putting together the data and will make a peer review page and post here so people can look at all the data together and discuss.

I will get some measurements from the end of camera range to containment floor etc.