Radiation Concerns About Airport X-ray Scanners
Airport scanners could present a bigger problems than the privacy issues being discussed in the media.
New airport security scanners, also known as naked scanners, are causing quite a bit of controversy relating to people's privacy. Though they'd been talked about before, these scanners rose to prominence following the Underwear Bomber's attempt to blow up a plane on Christmas day. A lot of people have a huge problem with the fact that these machines look underneath your clothes for weapons, and many raise the very valid point that we don't know who's scanning us or what happens to the images when we've continued on our journey.
However, though these are rational causes for concern, NPR reveals that there is another reason we should be wary of the machines two out of three of us will have to use by the end of 2011. According to scientists at the University of California, San Francisco, about half of these machines will be so-called X-ray back-scatter scanners. The fact that they use low-energy X-rays to scan people is worrying scientists.
"Many people will approach this as, 'Oh, it must be safe, the government has thought about this and I'll just submit to it,'" David Agard, a biochemist and biophysicist at the University of California, San Francisco told NPR. "But there really is no threshold of low dose being OK. Any dose of X-rays produces some potential risk."
"Ionizing radiation such as the X-rays used in these scanners have the potential to induce chromosome damage, and that can lead to cancer," Agard says.
Current calculations estimate that a person would have to pass through one of the machines 5,000 times to equal the 100-microsievert dose of a single chest X-ray. However, Agard and his colleagues think the manufacturer, Rapiscan, and government officials have miscalculated the dose that the scanners deliver to the skin.
The biochemist and biophysicist, along with John Sedat, a molecular biologist; Marc Shuman, a cancer specialist; and Robert Stroud, also a biochemist and biophysicist, wrote to John Holdren the president's science adviser, requesting a more detailed examination of the risks these machines pose to passengers.
The UCSF scientists aren't the only ones who are concerned. One of the experts who helped write the guidelines for the scanners back in 2002 now says he wouldn't have signed off on the report if he had known they were going to be used on so many people. David Brenner, head of Columbia University's Center for Radiological Research, is quoted as saying, "There really is no other technology around where we're planning to X-ray such an enormous number of individuals. It's really unprecedented in the radiation world."
Brenner's concerns are not the same as those presented by the UCSF scientists. While the UCSF group is worried about cancer, causing immune-system problems, effects on developing fetuses and sperm cell mutations, Brenner is more concerned with the 5 percent of the population who are especially sensitive to radiation. He argues that one person in 20 has a gene mutation that makes them less able to repair X-ray damage to their DNA.
"I don't know if I'm one of those 5 percent. I don't know if you're one of those 5 percent," Brenner told NPR, "And we don't really have a quick and easy test to find those individuals."
Read the full story here.
Have you been scanned yet? Let us know your thoughts on the experience below!
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I don't think I can trust them to handle the photos properly. They can't even control luggages and items! It's really sad how there are still so many reports of lost items in this day and age.
i know that they've blurred the faces but i doubt you could even tell who it was anyway so who cares what they do with the pictures? even if one did leak out i doubt very much it could be identified easily so who cares? no ones going ot jack off to those pics are they?
One more example of people in the media talking out their rears without knowing what they are talking about, seeing as i've worked for two companies that build x-ray security equipment I know what is true about them, and the backscatter x-ray systems that they do use to scan people do cause the low radiation exposure the manufacturers stated, and if someone did in fact have a sensitivity to x-ray radiation then it wouldn't be the body scanner that would cause the problems but the airplane flight itself as you are exposed to significantly higher amounts of radiation from the sun having less atmosphere to protect you when flying as high up as aircrafts do.
Well would you rather a X-Ray or a hand search? which one is less embarrassing and please if you reply to this directly or quote it, consider that both options will be public (as the X-ray is, the hand would be as well)
1. Any radiation can cause cancer, even a medical x-ray. That is why x-rays are only by Dr's orders, not over the counter.
2. If Megan Fox went through one of these images and it was leaked you bet people would pay good money to get their hands on it.
3. You only need a GED or equivalent to work for TSA.
4. A study by the German government found that explosives and weapons can be concealed by someone walking through a naked scanner.
One more example of people in the media talking out their rears without knowing what they are talking about, seeing as i've worked for two companies that build x-ray security equipment I know what is true about them, and the backscatter x-ray systems that they do use to scan people do cause the low radiation exposure the manufacturers stated, and if someone did in fact have a sensitivity to x-ray radiation then it wouldn't be the body scanner that would cause the problems but the airplane flight itself as you are exposed to significantly higher amounts of radiation from the sun having less atmosphere to protect you when flying as high up as aircrafts do.
You're really quite confused for someone in the X-Ray industry.
The ozone layer is in the higher end of the atmosphere, not lower. Also, X-Rays are not blocked very well by the atmosphere, and UVA and UVB rays are not nearly as dangerous. But, of course, in an airplane, you have the airplane blocking the rays. People don't generally walk out on the wings, so are better protected in flight than being outside in their yards.
So, it's a bogus argument. Ionizing radiation is very bad, and can cause cancer, that's a fact. Any changes caused by it are bad, and can lead to health problems. Considering how many people have died from security issues, and how many people will be exposed to this nonsense every year, the cure is probably worse than the disease.
sandrah - airplanes have UV reflective paint and windows. Even parachuters use UV goggles and sunscreen. Solar wavelengths are much longer than x-ray radiation and therefore exponentially less likely to cause DNA degradation in a cell. Even if you make the completely inaccurate assumption that solar and x-ray radiation are similar in their carcinogenicity you are still way off.
Why don't you describe the situation where the 5% of the population that is radiation sensitive is going to be OUTSIDE OF THE AIRPLANE at 35,000 feet. Lets hear it.
Why are these even being used on people if there are so many unanswered questions about the long-term effects of this technology? I'm sure the dosage is smaller in these but every other time I have had an X-ray done, I've been given a lead blanket for protecting sensitive areas and the technician(s) leave the room entirely which does little to comfort me in what is to be widespread use of these machines.
That is definitely a concern, as I am not one for radiation. But as far as the "pictures". GROW THE F**K up people. everybody in the entire world either has a penis, or boobs and a vagina. Not that I would back our government in this, but if I need to be scanned, even completely naked, so that I know the plane I'm getting on won't blow up, kill me, and many other passengers, including children, then I'm all for it. Who care's if they can see my genitalia.
This is why I've gone back to the Interstate system.
The bigger issue is what difference does having the most advanced scanner make when small pieces of weapons can still be hidden in carry-on luggage, to be reassembled on board? A credit-card sized device can be sharpened to the point where it becomes a very effective weapon. With the right training, you don't even NEED a weapon to be lethal. All the scanning in the world can't guarantee safety. We should be PASSING OUT weapons at boarding time, everybody gets an uzi. Anyone thinks about trying something they know every other rambo on the plane will mow them down in a heartbeat.
airplane flight itself as you are exposed to significantly higher amounts of radiation from the sun having less atmosphere to protect you when flying as high up as aircrafts do.
While it is true that we do get more background radiation during the flight (specially those long flights (>5hrs)), but that dose not give us or anybody excuse to have more does/exposure of radiation before the flight.
but the airplane flight itself as you are exposed to significantly higher amounts of radiation from the sun having less atmosphere to protect you when flying as high up as aircrafts do.
in fact, while our body do have mechanisms to handle/repair the damage due to the Ionizing radiation and the reactive oxygen produced by Ionizing radiation, it has its limits. IT may not be a good idea to overload or stress our system before we get on the plane.
sandrah - airplanes have UV reflective paint and windows. Even parachuters use UV goggles and sunscreen. Solar wavelengths are much longer than x-ray radiation and therefore exponentially less likely to cause DNA degradation in a cell. Even if you make the completely inaccurate assumption that solar and x-ray radiation are similar in their carcinogenicity you are still way off.Why don't you describe the situation where the 5% of the population that is radiation sensitive is going to be OUTSIDE OF THE AIRPLANE at 35,000 feet. Lets hear it.
1 hour of airplane flight is .5 mrems (millirem), 1 scan in through a backscatter body scan is 10 microrems or .01 mrems, and for reference 1 chest xray is 6 mrems.
The construction of a modern aircraft will block virtually no radiation as they are made with all low weight low density materials like aluminum, no type of paint of film on the windows will block any sort of radiation, well unless you're talking lead paint and still that's not really going to stop any radiation, you need high density materials like lead to stop it. And yes atmosphere not the ozone blocks radiation, ozone blocks UV rays, the further away from sea level you are the higher cosmic radiation you get and that's the radiation you get on an aircraft.
So what would happen if there was a terrorist about to board and had gone through other forms of security just fine... But was lucky enough to be the 1 out of 3 that didn't have to go through the scanner and managed to take the plane down...
Either everyone should have to do it, to make sure of security, or no one should have to do it, to ensure the health of people...
Absolutely ridiculous
If you're a male, make sure you masturbate good before passing the scanner, to leave a good impression with the security guard (hopefully a woman for most)
Rapiscan is an.. unfortunate company name.
i know that they've blurred the faces but i doubt you could even tell who it was anyway so who cares what they do with the pictures? even if one did leak out i doubt very much it could be identified easily so who cares? no ones going ot jack off to those pics are they?
6 billion people, 6 billion fetishes.
after what i've seen on the internet, Nothing surprises me anymore.
we the people had nothing to do with the underwear bomber. if anything, the usa gov't failed in a several attempts to apprehend him before he ever boarded the plane. and yet, it is you and I who have to go through more and more hoops to get on with our daily lives. What happens when the next guy puts a bomb in his anus? Are we then to submit to anal probing?? This is not what this country was built on and yet we americans appear ready to give away all of our rights. The poeple could have told the gov't to get their collective sh** together and prevent these idiots from boarding planes with the tools they already have, but instead they put the onus on us.
One more example of people in the media talking out their rears without knowing what they are talking about, seeing as i've worked for two companies that build x-ray security equipment I know what is true about them, and the backscatter x-ray systems that they do use to scan people do cause the low radiation exposure the manufacturers stated, and if someone did in fact have a sensitivity to x-ray radiation then it wouldn't be the body scanner that would cause the problems but the airplane flight itself as you are exposed to significantly higher amounts of radiation from the sun having less atmosphere to protect you when flying as high up as aircrafts do.
Look at it another way;
Millions (more?) of people fly each day. Let's say over a year a few hundred million people go through an airport. I'd say the average amount of scannings would be at least double that (I've already been through 12 airports this year).
For now, let's guess that there are 600 million scans per year. I have no idea, I'm just throwing out numbers.
Now, let's say that the chance of it causing cancer is 1% (very very high), then we have 6 million cancers. High right? Say 0.1%, then we have 600,000 cancers, 0.01%? 60,000. 0.001%? 6,000. 0.0001? 600. 0.000001? 60. 0.00000001? 6.
That'd be per year.
How many people died of terrorist attacks on planes in the past 10 years? Around 3000.
So yeah, that number is pretty high. But still, if the chance of causing cancer is one in 100,000 and there are a lowly 600 million scans a year, it would still be unjustified over the period of 10 years.
Then let's not even get started on the cost...
Honestly, I'm not worried about this whole body scanner thing.
Yet another reason I don't like those things. I would have left on a trip 6 months ago if not for those.
I'd just drive across the border, but even that security is insane.
Congratulations, you've successfully kept me in my own country. Good job. No chance I'd go jihad in another country now, it's too damned inconvenient.
That is definitely a concern, as I am not one for radiation. But as far as the "pictures". GROW THE F**K up people. everybody in the entire world either has a penis, or boobs and a vagina. Not that I would back our government in this, but if I need to be scanned, even completely naked, so that I know the plane I'm getting on won't blow up, kill me, and many other passengers, including children, then I'm all for it. Who care's if they can see my genitalia.
You make it sound like there are thousands of terrorists just waiting for the order already waiting in the airport. Out of how many thousand flights how may have been blowen up and attempted blowen up? yeah you hear of a couple a year or so but the estimates are there are 18 million flights per year. but that would give you a 0.0000000222% (based on 4 flights per year get bombed) that the flight your on is going to suffer a terrorist attack
Probably about the same chance as you geting cancer from one of those machines
Why are these even being used on people if there are so many unanswered questions about the long-term effects of this technology? I'm sure the dosage is smaller in these but every other time I have had an X-ray done, I've been given a lead blanket for protecting sensitive areas and the technician(s) leave the room entirely which does little to comfort me in what is to be widespread use of these machines.
$ Some company is making money on them. I am going to guess they have scientists that have measured the radiation so they know the amount of exposure to each person. The problem is, these scientists work for a company that they own or are employed by the company directly and our government trust them to give them accurate data. Really the companies see $ and want their customers (share holders) to be happy.
Maybe I am just being to pessimistic, but I've seen too much stuff to believe that it is really safe. Heck they used to think DDT was good for you.
Until people stop letting big business and Big Brother run their lives, this will keep happening. So be prepared for more and more invasive electronic scanning in the name of SECURITY. Those of you who capitulate to this are really the ones to blame.
A little history. I can remember in the 70's watching plane after plane be hi-jacked and watching the drama unfold while eating dinner and watching the evening news.
What was to be done about this horrible trend that was going on?!
1: Well, it was suggested that a security door be put on the entrance to the cockpit. This was fought tooth and nail by the airlines as to expensive and would add to much weight.
2: It was then suggested that an air Marshall be put on every flight. OMFG the Gov. screamed, do you have any idea how much that would cost???!!!
3: OK then, how about we make the main luggage hold use bomb proof cases for the luggage. The airlines again screamed. See#1
4: All right then, how about this, we arm the pilots? WHAT???!!! arm the pilots, their there to fly a plane, not fight terrorists the unions shot back (ha-ha).
So what happens? We have a Lockerbie happen as the final straw, and what happens, by all the gods and saints that ever were and ever will be, the airlines are forced into using bomb proof cargo containers. Still, all other suggestions are are being fought.
Then we have the Towers, now suddenly it not happening on the other side of the world, it's in your hometown. And again one of the biggest miracles ever to happen,walking on water was nothing compared to this one, we have secure doors to the cockpit and an air Marshall on every flight.
But none of these things could be done according to the airlines and our Gov., both of whom we know would never lie to us and always have our best interests placed firmly in the center of their hearts.
As for arming the pilots, do you really think the pilots who went down taking all lives with them didn't at least once think, if I only had a gun? Or, given a second chance, wouldn't opt to carry one?
So can we please quit having stupid articles like this one posted. Big Brother/business has you completely protected so shut up and keep grabbing your ankles. Again, this has been a problem since at least the 70's. Thumbs down may now commence.
I for one am willing to admit that if I had access to an x-ray scanner like this, and some perfect 10 model walks through and I get to see everything in all it's grainy black & white glory, I'd probably love it. Women have a strong right to be concerned here because there are enough hornballs out there among us who probably would jerk it to these images.
bla bla bla....
Do you realize what would happen if you fired a gun through the window or an airplane at 35,000 feet? Go look up something called explosive decompression. One single bullet penetrating the side of an airplane could easily cause that entire section of the airplane to break apart sucking out 10 passengers with it, along with all the oxygen and an immediate emergency decent on behalf of the pilot. Thats assuming the pilot isnt already dead for taking a shot at a terrorist. What do you think a SUICIDE terrorist is going to do if someone pulls a gun on him, put his hands up and surrender? Get real. If he doesnt immediately blow himself up right there, he will take any means to kill the pilot before ruining his plan. And of course lets not ignore what happens if that same bullet which goes through the body of the plane hits a fuel tank or an engine.
Another typically naive gun toting redneck completely failing to think 2 seconds beyond the moment of firing his weapon.
You're really quite confused for someone in the X-Ray industry. The ozone layer is in the higher end of the atmosphere, not lower. Also, X-Rays are not blocked very well by the atmosphere, and UVA and UVB rays are not nearly as dangerous. But, of course, in an airplane, you have the airplane blocking the rays. People don't generally walk out on the wings, so are better protected in flight than being outside in their yards. So, it's a bogus argument. Ionizing radiation is very bad, and can cause cancer, that's a fact. Any changes caused by it are bad, and can lead to health problems. Considering how many people have died from security issues, and how many people will be exposed to this nonsense every year, the cure is probably worse than the disease.
First off, the skin of a plane isn't going to stop that much in the way of X Rays and Gamma Rays, these do reach the surface of the Earth. The difference is, you have 60 some odd miles of atmosphere between you and a lot of the radiation. Secondly, the closer you are to Earth, the thicker the atmosphere becomes giving you better shielding from radiation sources that are Exo-Earth.
Given that, he's right. The less atmosphere between you and the sun, the higher incident radiation you receive, this is a fact of life. Depending on the energy of the incident X-Rays and Gamma Rays, the more air you put between you and the source, the less the dose you take. Case in point, a Cobalt 60 source, for every 40 feet of air between you and the Cobalt 60 source, the amount of incident dose is cut in half. Now, not all X-ray and Gamma ray radiation is going to diminish the same way as the Gamma rays that come off Cobalt 60, but it is a known fact that air will lessen the dose your receive the further you are from the source. So flying in a plane, you are getting a higher dose of radiation than standing on the ground.
Now, I can verify the other comments on how much dosage someone will take from these scanners as I don't know what their actual dose rate equivalent is, but you do take higher doses of radiation when flying in a plane than you do from standing on the ground.
And by the way, Ozone is there to stop the higher energy Gamma Rays and Cosmic Rays (a misnomer as Cosmic Rays are really high energy particles like Protons, various quarks, and the like). Ozone will help some against lower energy X Rays and Gamma rays, but that isn't what it's mainly there to stop.
And before you go asking where my source is, I'm a Nuclear Engineer by schooling (what I got my Bachelors in) and learning about radiation dose and dose equivalent was part of the degree program (along with a number of other things, but that's neither here nor there).
Another typically naive gun toting redneck completely failing to think 2 seconds beyond the moment of firing his weapon.
First let me state that it obvious that I am dealing with someone who is vastly my superior in intelligence and someone who has superhuman cognitive abilities. I only hope I can defend myself against such a great person.
1: You managed to miss the entire point of the post. Have i p'od some people, you bet. Maybe they will put up a fight against such thing as X-ray tech. There are those that will have no problem letting the Gov. do whatever to keep them "safe". If the Gov. and airlines had acted when this was a problem IN THE 70's AND THE STATED SUGGESTIONS WERE PUT FORTH, then the chances of 9/11 would have been greatly reduced or prevented.
2: The person managed to board the plane with explosives strapped to their body. You'll have to post back and let me know how that scenario can be realized.
3: Bullets on planes. Again, you are a person of phenomenal IQ. For reasons I can't even begin to comprehend, you ruled out the Glaser safety slug. Would you care to explain why a bullet that can't even pass through drywall yet has good stopping power was excluded from your list.
4: Bullets passing into the fuel tank. Again, you seem to feel that is is better to have penetration than stopping power. So please explain that again, I missed it.
5: As you made an assumption about me from reading my post, let me return the favor, you are a ill informed, complete and absolute twit.
The moderators can feel free to pull my posts.
A cross country airplane flight results in a dose of approximately 4 mrem per trip. Routine chest x-rays result in about 10 mrem per film. If you are worried about the exposure in this scanning device (0.002 mrem), perhaps you should reconsider getting on the plane...
"Significant increases in the numbers of cancers have only been seen in populations who received large doses of radiation (over 100,000 millirem) in matters of seconds, minutes or hours. A millirem (mrem) is a unit of radiation exposure. Studies have not found increases in cancer in populations who received doses less than 100,000 mrem (especially when the radiation dose was delivered over a lifetime)."
http://www.uihealthcare.com/topics [...] ation.html