Conversions and Safety Limits

Strontium Limits - Annual

Uranium for dummies

Radiation is very confusing, everyone has different units of measure.   There are lot's of opinions, and lots of highly motivated views by money and by the "love of science".   Those who understand nuclear "got off on it".

It took me about 4 hours to understand it, at least to sort out the conversions and the BS.

Conversion factors, and government set safety levels are all in here.   Also right at the top are data on neutron absorbers necessary to stop the ongoing nuclear reactions at Fukushima.  The absorbers will all melt unless you can also cool down the Blob.

I think I nailed it, and put it summary into a spreadsheet.   There are links and reference documents embedded right into the spreadsheet.   The link is to an Excel spreadsheet

OfficerDave noted this calculation. It is important to be able to quickly convert and tell what rad level are high and what are hype.

October 30, 2011 at 1:31 pm · Reply

(3.68 x 24 x 365)/1000 = 32.2 milli sieverts a year = 61.9% above mandatory evacuation level

Indeed that is the calc that brings it home.

A simpler calc for immediate consumption is to multiply the Micro per hour by 8, and that is a pretty good estimate of Milli-Sievert.

2 milli-sievert per year is damaging, why do 50% of us get cancer? But anything over 20 is serious stuff. And once it become internal emitters, you are pretty much screwed.

Radiation Units -

Sievert is a radiation exposure measurement; its Western counterpart terminology is the 'Rem.'

  1 Sievert (Sv) = 100 Rems

    1 Rem = 0.01 Sv

    1 milliSievert (mSv) = 100 milliRems (mRem)

    1 microSievert (uSv) = 100 microRems (uRem)

    1 milliRem = 0.01 milliSievert