X-RAY AND ELECTRONIC VALVES.

The electrons move freely in metals and if supplied with the electric energy, they can escape from the metal. This energy can be supplied by heating if the metal is heated to a sufficient degree that emits an electronic current.

Diode.

The electrons are negative, so they are naturally attracted to the positive charge. This characteristic is used in the electronic valves which we find to have multiple uses in the circuits. The diode contains a line between the helipad, the cathode, the elevator, and the anode inside a vacuumed glass container. When the cathode is heated, the electrons are emitted and naturally attracted to the positively charged anode. Thus, a current flows through the valve in one direction only towards the positive anode. If the charge of the anode changes to a negative charge, no current will be applied to the valve. The triode, in addition to the cathode and the anode, it has a third pin is the network.

wilhelm Konrad roentgen
(1845-1923)

 The current of the electrons from the cathode to the anode is affected by the charge of the network, and the positive charge of the network is increased by the electronic current flowing through it. Thus the network voltage controls the current of the cathode to the anode and can also amplify it. Transistors can do the work of electronic valves and have already been replaced in many electrical circuits and are smaller and longer life and do not need heat to emit electronic current. But the emission of electronic current heating metal is still used in many important tools such as an electron microscope and X-ray tube.

John Ambrose Fleming
(1849 - 1945)

The X-ray is similar to light because it is transmitted in a waveform but its wavelengths are much shorter and are not visible and have a very high energy. X-ray can penetrate deeply through objects and sometimes penetrate without difficulty. X rays are generated in the X-ray tube when a high current of electrons emitted by a cathode is heated to the anode and because of the very high anodic velocity, the electrons rush towards it very quickly to gain a large energy. The anode contains a small disk of heavy material in tungsten received by the current of electrons. When the electrons collide with tungsten atoms, their energy is lost and the electrons acquire them in the internal electronic casing of the tungsten atoms and to dispose of the tungsten atoms from their excess energy.

X-Ray tube.

The X-ray is used in several medical fields, and the light rays are capable of forming a picture on a photographic film. If a person stops between an accelerator and a low-energy X-ray and the film appears on the film, the image of the skeleton can be detected and any fracture or deformation of the bone is used.

 Jeep X-Ray Resolution.

 The high level of energy in the treatment of cancer as the radiation of this radiation irradiation cells kill cancer also used X-ray also in the fields of scientific research in the study of the composition of crystals to detect the status of atoms and molecules and their regularity in the crystalline pattern as well as to study the method of atoms in molecules of some bitter Pat huge nuclear Kalhamad and dye cell and others.