Details provided here are for estimating what equipment was seen in the scope effort, what could potentially be determined by further efforts, where water is potentially located and radiation levels along with corium location. While we may not be able to make many detailed conclusions there is the potential to extract more information out of this effort. Schematics along with known data are below.
Some questions already asked on the live blog:
The washout in the 4th video, is some of it radiation washout vs. light reflection, steam and other interference. If it is washout due to high radiation what does that tell us about the distance from the fuel and possible radiation level where the camera is?
Exactly how far down do we know water does not reside?
What is the total visual range of the camera?
What do we know from the unit 5 scope attempts that can be translated to the effort at unit 2?
Please leave thoughts or questions here or come post on the live blog to discuss.
Camera total range: 10 meters with an 8mm camera end
Camera radiation maxium: 1000 sVh per hour
Containment thickness at penetration point: 1.5 to 2 meters
Penetration to center of containment is 8.7 meters (this does not include containment wall thickness)
From penetration access point to bottom of containment is 6.31 meters
From penetration to edge of the pedestal is 6.11 meters
Penetration X-53 is at an elevation of 12490 OP
Measurements shown on the elevation drawing of Unit 1 for comparison. 6.31 meters to floor of containment.
8.7 meters from inside of penetration to center of containment. 6.11 meters from inside of penetration to outer
edge of the pedestal.
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