Recent content by pdObq

I found some kind of answer or confirmation of my half-life question while browsing through another thread. Basically starting from https://www.physicsforums.com/showthread.php?p=3266565#post3266565" onwards. So, in short, the really bad nuclides for humans are the ones with a half-life on the...

A few questions regarding the temperature sensors to figure out how trustable the temperature readings still are. Does anyone know what kind of temperature sensors they are using? (Thermocouple, resistive, semiconductor, ...) How is the sensor signal read out from the sensor to the...

Come on guys, what do you expect from people who want to spray water into the SFPs with riot police trucks, who don't accept robots flown in from Europe specifically designed for nuclear accidents, and instead use two bomb disposal robots with a radiation meter taped to one of them. :cry:

Why? Isn't internal bleeding exactly what one would expect from a strong shockwave running through a poor fellow? See, e.g. http://en.wikipedia.org/wiki/Blast_injury (bolding by me): In general, primary blast injuries are characterized by the absence of external injuries; thus internal...

Yes, just for those too lazy to take a look into those documents :wink:, here are a few graphs attached from http://www.ornl.gov/info/reports/1981/3445600211884.pdf (p. 38ff (p. 50ff), see also post #7747), that show what happens when everything works as it should (it's a computer simulation...

On some pages it says "-99 = Missing control rod position". Don't know how to interpret that.

Well, I don't want to get into that battlefield, but the thought of the RPV launching like a steam rocket is just hilarious :smile:. The holes in the bottom for the control rods would make great nozzles, too. And the steam and water nozzles would be great for steering. Oh my :smile:. Sorry...

You might want to check out this document: http://www.ornl.gov/info/reports/1981/3445600211884.pdf . It's a simulation and analysis of station blackout scenarios at Browns Ferry unit 1 from 1982. Lots of plots of various reactor parameters (pressures, temps, hydrogen production, etc) versus...

jlduh, thanks for the backup :wink:! gmax137, I suppose you were offended a bit by the "almost certainly without letting them know about the known risks". I mean, you probably don't want to debate about that GE designed the reactors, nor about that GE (and later GE-Hitachi AFAIK) sold them to...

:confused: Source?? I guess that would be me, as I wrote that was a thought I had while watching that documentary... Did you watch it? One could probably make a list of the actual sources shown in the documentary (studies and interviews). It's pre Fukushima-crisis, though, so there is no...

Interesting, thanks for sharing. That seems like very solid data, I mean it comes from the official "Japanse Geospatial Information Authority of Japan (GSI)" site after all (link from ex-skf's blog entry: http://www.gsi.go.jp/chibankansi/chikakukansi40005.html ). And it comfirms what some...

Wow, you have some very nice stuff on your site. Are you planning on an English version? Regarding the EDGs, those things must weigh A LOT. It makes a lot of sense to put them as close to the ground as possible both from the engineering and the building cost point of view. In general, I...

rowmag, see this post for an earlier discussion of that and follow back the quotes (by clicking on the blue box with the white arrow, I am sure you know) to get to a link to the English website that states that. https://www.physicsforums.com/showthread.php?p=3305982#post3305982

Thanks for looking up all that information and clearing that up! My naive first thought was that the softer soil might even act to damp the accelerations via dissipation like a piece of rubber, but apparently that's not how this works. They certainly had done calculations, see that paper...

Wow, thanks for that link, that documentary is kind of disturbing (although it's not really surprising that much blame goes to business and sales people). One thought during watching: It would not seem terribly unfair if GE (or GE-Hitachi) had to pay its share in the whole mess. After all...