Crash.Net User: Mal X

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Mal X

August 19, 2011 1:50 PM
Last Edited 1125 days ago

MotoGP » Rossi: I don't think I'll go to Japan


Meek Meek Just watched the videos. Hot particles are just alpha and beta emissions from the decay of various radioactive isotopes. Notice where he says the people in Seattle experience 5 of these particles per month (baseline) and Tokyo are only getting 12 count per month. We measure these through mini portable air pump (about the size of an ipod) at the uranium mine is used to work at. while you might get 5 10 or 12 of these hot particle per month some these particle may only give off radiation every 100000 years, but other may be less than hour Thanks for the reference, he does explain things quite well.

Mal X

August 19, 2011 12:38 PM
Last Edited 1125 days ago

MotoGP » Rossi: I don't think I'll go to Japan


@Meek Meek The term "Hot particles' I and unfamiliar with. Alpha particles are a concern if breathed in or ingested in moderate amounts, as their half life is typical less the 2 weeks (decay in the body), thus when they decay they will give off gamma radiation causing cell damage. This risk is easily control by good hygiene and washing down surfaces. And it can be tested for (natural gamma) but the articles I have read makes no mention of it.

Mal X

August 19, 2011 12:03 PM
Last Edited 1125 days ago

MotoGP » Rossi: I don't think I'll go to Japan


To people who disagreed with my previous post. Assuming the MotoGP rider flys for 150hr per year (equates to about 4.5 mSv of cosmic radiation), and has 3 x-ray (0.3 mSv), he would receive an additional 4.8 mSv above the background radiation (about 2 to 3 mSv per year). By attending Motegi GP, the expected additional exposure above background radiation is 30 uSv or 0.030mSv. Thus the MotoGP get 160 times more radiation exposure from their normal activities than what they will from going to Motegi If you disagree then you are as ignorant as Rossi


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