Physical Search or X-ray Screening?
By Bashir A. Syed*
US

Radiation produces cumulative effects in any system. For example light is a part of electromagnetic radiation just like X-rays (except that it has longer wavelength than X-rays).
Anyone who is experienced in photography, knows that the more the light falls on a photographic film the darker it becomes. The reason is two-fold: (1) Light photons are less energetic than X-rays are (since energy of a photon is proportional to the frequency of radiation according to de Broglie's Law in Physics). Thus anyone who has film in the camera, which has undergone multiple passes at the airport security, knows that it begins to fog due to the cumulative effect (Kodak specifications after testing are only good for one "pass" through airport X-ray scanners, a flawed concept of "Safe Dose.")
Similarly X-rays affect the cells in the human body, producing mutations of the chromosome and altering the DNA. And no one knows the so-called safe limit or "threshold" at which harm is done. What may be a safe dose for person "A" may not be a safe dose for person "B." No one had known the damage produced by radiation in space, which affected four astronauts (three died of leukemia, and one with brain tumor). It was the Concord plane flights which startled the scientists, and when British researchers placed neutron detectors (sensors) they were totally amazed to find the high levels of secondary neutrons in the Concord plane capable of causing serious harm to the chromosomes and DNA. Then the scientist conducted a study of neutrons with altitude, they found them in most passenger aircraft flying at an altitude of about 35,000 feet, but almost manifold at the altitude of 65,000 feet, at which the Concord flew.
This led to a warning to frequent flyers, and FAA told the airlines crew to cut down their flying hours to reduce the cumulative dose. Last year I was traveling from Bejing to Los Angeles, and stretching myself on a long flight at the back where the Stewardesses prepared their snacks and meals. I was standing right next to a Korean Oncology Professor, and we started chatting on the same subject (being overheard by some of these ladies). One stewardess got up and told us that the warning given by FAA was correct, as she herself had undergone a few surgical operations after suffering from radiation damage.
Any one who tells you about the safe level of radiation or any carcinogen, is indeed giving you an accepted value agreed and based upon numerous assumptions and variables. Human beings without knowing receive a lot of radiation dose in their life, some from medical X-rays, other from professional work, and nature (cosmic radiation) and radon, etc., which affects us all. Thus no one knows exactly what is the threshold for you or himself, which is only a speculation and assumed conventional limit.
In view of this I would rather undergo a physical search, rather than subject my body to the radiation which penetrates my body and causes harmful effects in the process. Thus all educated and sensible people must oppose the use of such intrusive devices which ultimately cause harm.
Time magazine first reported the case of a cop who would place his radar gun on his thighs during driving without realizing the harm. A few months later he began feeling discomfort in his genitals, and the physical exam revealed that by placing the radar gun in his lap, the cells in his testicles got damaged causing testicular cancer.
During the 1980's, when I was working at GE's Electronic Systems Department building radar systems, we had a technician who used to test systems in the anachoic chamber without taking precautions. One day he was found to have leukemia, and died within a year.
The moral of the story is that radiation is an invisible, odorless, silent killer, and if precautions are not observed, it can kill a person.
*Retired Aerospace Physicist
Member: APS, IEEE (Nuclear & Space Radiation Effects, and Nucl. & Plasma Physics Soc.), UCS, New York Academy of Sciences. Served as Member of Radiation Safety Committee, NASA/JSC, Houston, TX.
References:
1. Ernest Sternglass (introduction b George Wald, Nobel Laureate), "SECRET FALLOUT: Low-Level Radiation from Hiroshima to Three Mile Island," McGraw-Hill Paperbacks, New York 1981. ISBN 0-07-061242-0.
2. Eileen Wellsome, "PLUTONIUM FILES<" Dial Press, Random House, New York 1999.
3. Dr. Dryer's research work in UK, on Secondary Neutrons in Concord and other airplanes, presented at IEEE (NSREC Meetings Tutorials about seven years ago)
Just perform Google search on this topic (and Depleted Uranium), and one will be amazed to find the amount of literature on this subject.

 

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