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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