2015年7月13日星期一

Wow! That is Where X-Ray Security Machine Came From

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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