Speaking of X-Ray Security Machine history, we need to know some knowledge
about X-ray firstly. Most people know that X-rays are capable of penetrating
some thickness of matter. Why? X-rays are considered as one of different types
of electromagnetic waves. The electromagnetic nature of metal
detector gate became evident when it was found that crystals bent their path
in the same way as gratings bent visible light: the orderly rows of atoms in the
crystal acted like the grooves of a grating. X-ray security machines adopt the x
ray technology.
The first x ray baggage scanner was discovered accidentally by the German
scientist Wilhelm Roentgen (1845-1923) in 1895. He found that a cathode-ray tube
emitted invisible rays that could penetrate paper and wood. The rays caused a
screen of fluorescent material several yards away to glow. Roentgen used his
device to examine the bone structure of the human hand. This machine was really
just a modified cathode-ray tube. True X ray machines were not invented for
several years. Discovery in 1895, security apparatus
were advertised as the new scientific wonder and were seized upon by
entertainers. Circus patrons could view their own skeletons and were given
pictures of their own bony hands wearing silhouetted jewelry. Many people were
fascinated by this discovery. Some people, however, feared that it would allow
strangers to look through walls and doors and eliminate privacy.
Generally speaking, modern medical X-ray security detecting system have been
grouped into two categories: those that generate "hard" X-rays and those that
generate "soft" X-rays. Soft X-rays are the kind used to photograph bones and
internal organs. This type of X-ray equipment operates at a relatively low
frequency and, unless they are repeated too often, cause little damage to
tissues. The most important application of the X-ray has been its use in
medicine. This importance was recognized almost immediately after Roentgen's
findings were published in 1895. Within weeks of its first demonstration, X Ray baggage scanner on
sales was used in America to diagnose bone fractures. Hard X-rays are very
high frequency rays. They are designed to destroy the molecules within specific
cells, thus destroying tissue. Hard X-rays are used in radiotherapy, a treatment
for cancer. The high voltage necessary to generate hard X-rays is usually
produced using cyclotrons or synchrotrons. These machines are variations of
particle accelerators (atom smashers).
One of the more familiar X-ray machines is the security scanner used to
examine baggage at airports. These machines use a very low-power scanner. They
illuminate the interior of purses and suitcases without causing damage to the
contents. In modern society, more and more advanced X-ray security machines have
been researched and applied. If you are in need of X Ray inspection
supplier, you can visit www.eastimagesecurity.com for more information.
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