Recent content by mantrogo

depressingly frequent - a cabinet minister resigning after a mere 9 days is actually only tied in fourth place for the fastest resignation post war. And let's face it, ex-PM Kan was the only PM in the last 6 to last more than a year. There was a good quip - if rueful - from the current PM Noda...

*roll*eyes" - what`s that saying about haste and speed again..? thankyou, thankyou, my apologies - should have looked at what I was writing!

Hi Clancy688 - more or less the same question occurred to me - this is how I did it: the Bq number gives you the activity of a quantity raqdioactive material where one nucleus decays per second and is tied into atomic mass and half life by following equation: Bq = (m / ma) * Na * (ln(2) /...

"ALLOWED LIMITS" - may be like the allowed limits for food and driking water - remember that scare a few days ago? The allowed limits (in bq) are set by reference to a level where incidence of cancer would not increase assuming consumption over _an_entire_year_.

Hi bytepirate - here's the way I did it. given atomic mass + half life you can deduce the ratio of the number of particles of I 131 and Cs 137 that give rise to the TEPCO readings of 25th March (the ones I used where they said that while Technetium etc might be wrong, I and Cs were right)...

Since the Gundersen thing has come up again, if I may I'll just repeat an earlier post. Looking at the I131 Cs137 ratios that have been confirmed there is no evidence of recent criticality. Given the production yields for I131 and Cs137 from fission reactions (ratio of about 1:2) and given their...

On the subject of the radionuclide analyses. Post above indicated that apparently the reanalysis shows that while some of the numbers are gibberish, TEPCO stands behind the I 131 numbers. If this is the case, and the Cs137 numbers are also correct, an interesting conclusion can be drawn...