X-rays first discovered by German physicist Wilhelm Roentgen named the year 1895. Inspired by the discovery of X-ray experiments to observe the motion of electrons from the cathode to the anode in a vacuum glass tube such that the cathode tube (JJ Thompson) and the electric image (Heinrich Hertz). X-ray event preceded the occurrence of Heinrich Hertz's experiments in 1887 by using a vacuum tube containing a cathode and an anode connected to a power source E.
Sifat Sinar- X
- Greenworld permeability
- Experience attenuation
- Cause secondary radiation
- Has the effect fotogrsfis (emulsion discolor)
- Has the effect of luminescence (ie perpendaran effect when the x-ray of a particular metal)
- Has the effect of ionization
- Biological effects (can lead to somatic disorders, such as carcinoma and tumors and genetic disorders)
- An invisible rays
- Not focused by the lens
- Very short wavelength
- Speed is the speed of light
X rays are electromagnetic waves emitted by a very short wavelength is just 1/10.000 wavelength visible light and its energy in the range 100 eV-100 KEr. X-ray wavelengths if it is expressed in units of angstrom is 10 ^ -9 cm or 0.1 Ao which is a big one angstrom (Ao) = 10 ^ (-10 m) = 1/10.000.000.000 m). Very short wavelength X-rays, allowing X-rays can penetrate objects / body parts in its path. X-rays can be generated by X-ray tube is a vacuum in which there is also the cathode filament and the anode there is a component. If the filament is heated it will come out and when the electrons between the cathode and anode were given a high potential difference, the negatively charged electrons are accelerated towards the anode will move positively charged. When the electrons collide with the anode are not resilient, then the consequence is there an X-ray radiation through two processes, namely the collisional interaction or the interaction of radiation.
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