On Tue, Aug 21, 2012 at 8:58 AM, Daniel Rocha <[email protected]> wrote:
*In your papers and Interviews, weak gamma about 50-300keV, around > background level, are discussed, mostly on starting. Can you already > roughly estimate the dose that could be added to people around, assuming a > 10-50kW reactor in the basement, annually, compared to natural doses, to > existing safety standards ? It looks, annually integrated, as really > negligible , is it true ? Or is some shielding needed? And for big MW > units, will it be noticeable, requiring shielding, or still negligible ?* > > The maximum dose of such emissions,when measured, was lower than 0,02μS/h. > The rest of questions have already been answered in several topics in > viewforum.php?f=23<http://www.defkalion-energy.com/forum/viewforum.php?f=23> > To get a sense of how much radiation this is, according to Wikipedia the recommended maximum chronic dose of artificial radiation per year is 1 mSv, with an average of 0.1 uSv/hr [1]. You would need to to be exposed to 0.02 uSv/h for 50,000 hours to get to 1 mSv. There are 8544 hours in a year, after which you would reach 17 percent of this dosage if continuously exposed. According to the article, the global average natural background radiation is 2.4 mSv/yr, at an average of 0.27 uSv/h. The FAQ does not say what the output of the reactor that was tested is. It is unclear how the dose will vary with the size of the reactor and following steps taken to optimize the reaction. Eric [1] http://en.wikipedia.org/wiki/Sievert
