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Iwinder
This makes me think back to that video from Chernobyl where the guy in charge is flying right over the spewing reactor.
Link for those interested.
www.youtube.com...
Regards, Iwinder
nighthawk1954
WTH! When is the Japanese government going to start telling their people the truth?!?
nighthawk1954
When is the Japanese government going to start telling their people the truth?!?
intrptr
reply to post by Arnie123
I may not agree so much with you on other issues but thanks for the info on the radiation monitoring.
The Hot spots were the grill, tires and wheel wells. Pretty much the entire front of the vehicle.
We did get some pretty huge hits though and were told to back up...
Can you remember what reading "pretty huge" was, by any chance? That and the date would be interesting to others I am sure.
Arnie123
Most readings were under a hundred, but we would get some hits at 300-400 Mrems, a couple of times we got hits in the 700-800 Mrems, those were the ones were told to stand back, the strange part about it was that when some AF Colonel Health advisor came, he continued to assure us that we were not in any immediate danger and that we shouldn't don our protective gear, needless to say, my PLT SRGT said, with respect, to hell with you and told us to don our gear.
//////
But in case your looking for some closure, then yes, A LOT of those vehicles had some fairly large readings, a lot of them a little above you average X ray, others hitting 200-300, about half your yearly average....But, if some were getting pretty close to 1 Rem, then that's huge! as an average does is around 500-600 Mrem.
Human0815
Arnie123
Most readings were under a hundred, but we would get some hits at 300-400 Mrems, a couple of times we got hits in the 700-800 Mrems, those were the ones were told to stand back, the strange part about it was that when some AF Colonel Health advisor came, he continued to assure us that we were not in any immediate danger and that we shouldn't don our protective gear, needless to say, my PLT SRGT said, with respect, to hell with you and told us to don our gear.
//////
But in case your looking for some closure, then yes, A LOT of those vehicles had some fairly large readings, a lot of them a little above you average X ray, others hitting 200-300, about half your yearly average....But, if some were getting pretty close to 1 Rem, then that's huge! as an average does is around 500-600 Mrem.
300-400mRems in a Hour, Day or what ever?
But in case your looking for some closure, then yes, A LOT of those vehicles had some fairly large readings, a lot of them a little above you average X ray, others hitting 200-300, about half your yearly average....But, if some were getting pretty close to 1 Rem, then that's huge! as an average does is around 500-600 Mrem.
I like to make note that we worked everyday, I MEAN EVERY SINGLE DAY, I would have to say that everyday we didn't don our protective gear, I would guess we were getting exposed to Rad on a daily basis, some days a third our yearly average, others about half.
intrptr
reply to post by Arnie123
Thanks Arnie123...
But in case your looking for some closure, then yes, A LOT of those vehicles had some fairly large readings, a lot of them a little above you average X ray, others hitting 200-300, about half your yearly average....But, if some were getting pretty close to 1 Rem, then that's huge! as an average does is around 500-600 Mrem.
That is I presume per hour. Off the wheels, grills and wheel wells of vehicles you used to patrol. That is huge like you say. A Rem is a lethal dose if exposed to it for an hour. That means you would have to stick your head in that wheel well for an hour to receive that kind of dose. Or dig a fox hole and sleep in it. Or eat or breathe some of that contaminated dirt where it settles into your bones and irradiates them for some time in order to give rise to cancer.
You can probably account for that high of a reading on the vehicles because the parts of them in contact with the ground accumulate that much contamination from driving around, kicking up dust in convoys, whatever.
If the high levels were found on the top of the vehicles I would say they were out in the environment when the stuff rained down, but since it is only on the lower parts that means you drove around on ground that was contaminated and the tires picked it up in the mud or soil. So it was on the ground where ever those vehicles operated already and only in the air to be breathed if they are open top for instance, or if work was done on that same soil by unprotected airmen who stirred up the soil or on a windy, dusty day, etc.
To find out, you could get a whole body dose survey with a scintillator (expensive) to see how much of that you accumulated inside. That could be covered by the military under certain circumstances. Check with others in your deployment to see where they are at. The important thing is that kind of testing not only shows how much contamination you received but also what types of nuclides and isotopes are involved. Whereas your average meter detects "radiation" but not what kind or the source. Alpha emitters are really hard to detect in the body without a scintillator.
I like to make note that we worked everyday, I MEAN EVERY SINGLE DAY, I would have to say that everyday we didn't don our protective gear, I would guess we were getting exposed to Rad on a daily basis, some days a third our yearly average, others about half.
Depending on the type of work and the duration during differing weather conditions that could be a problem. You might be aware of any radiation sickness others experienced. We know now that it was covered up about the extent and intensity of initial radiation plumes from the plant. There are a lot of factors, you say you were there a month after, that is better than being there during or right after. You heard the reports about the helicopters on the aircraft carrier being dumped overboard for their intake cowlings being contaminated? Unless you joy ride open jeeps with others on hot dusty days or were digging trenches or 'washing' aircraft by hand...
I don't know if you have sought medical advice, but I would to be sure. You were there after all.
That is interesting that you brought that up on the helicopters. I don't know if you were aware, but the navy as well as the AF currently had ZERO TTP'S or ANYTHING in regards on how to handle the rad those helicopters were accumulating. I honestly didn't think they would just "Dump" them over.
Sebourn tracked varying radiation levels in units called Corrected Counts Per Minute on their electronic detectors.
---
“Normal outside radiation exposure is between five and 10 CCPM,” he said. “And that’s from the sun. At Atsugi, the background readings were between 200 and 300 CCPM in the air. It was all over. The water was radiated. The ground was radiated. The air was radiated. “The rule was if there was anything over a count of 500 you needed special gloves. Over 1,000 CCPM and you needed a Tyvek radiation suit. And if it was over 5,000 you needed an entire outfit – suit, respirator, goggles, and two sets of gloves.
---
You couldn’t put a contaminated radiator back into the helicopters – they had to be replaced. I remember pulling out a radiator and it read 60,000 CCPM.”
The conventional units for dose rate is mrem/h.
Regulatory limits and chronic doses are often given in units of mrem/yr or rem/yr,
where they are understood to represent the total amount of radiation allowed
(or received) over the entire year.
Regulatory limits and chronic doses are often given in units of mrem/yr or rem/yr,
where they are understood to represent the total amount of radiation allowed
(or received) over the entire year.
intrptr
reply to post by Human0815
Regulatory limits and chronic doses are often given in units of mrem/yr or rem/yr,
where they are understood to represent the total amount of radiation allowed
(or received) over the entire year.
Nice disinfo...
You know damn well we are talking meters. They measure current levels of radiation. They don't measure "yearly dose limits" or "standards". But you already know that don't you?
A dose of under 100 rad will typically produce no immediate symptoms other than blood changes. 100 to 200 rad delivered in less than a day will cause acute radiation syndrome, (ARS) but is usually not fatal. Doses of 200 to 1,000 rad delivered in a few hours will cause serious illness with poor outlook at the upper end of the range. Doses of more than 1,000 rad are almost invariably fatal.[2] The same dose given over a longer period of time is less likely to cause ARS. Dose thresholds are about 50% higher for dose rates of 20 rad/h, and even higher for lower dose rates