K-shell Radiation Emission Recall that atoms have electrons arranged in a closed

Bremsstrahlung Radiation X-ray tube produces x-ray photons by accelerating the flow of electrons to energies of several hundred kilovolts at speeds of several hundred kilometers per hour and crashing them into targets of heavy material. Sudden acceleration of charged particles (electrons) produce Bremsstrahlung photons. X-ray radiation with a continuous spectrum of energy crystal candy dish produced by a variety of several keV maximum crystal candy dish energy electron beam. Industrial pipe material is usually tungsten, which means that the wave function of electrons bound tungsten required. The calculation of the inherent crystal candy dish filtration of an X-ray tube, which is controlled by the amount of the electrons penetrate the surface of the purpose crystal candy dish and type of the current vacuum window. Bremsstrahlung photons crystal candy dish produced in the target material are attenuated as they pass through the target crystal candy dish material typically 50 microns. The beam is further attenuated by a vacuum window made of aluminum or beryllium. The result is the elimination crystal candy dish of low-energy photons, 1 keV and 15.0 keV by a significant reduction in the portion of the spectrum of 15 keV to 50 keV through. The spectrum of the x-ray tube is further modified by the leakage caused by the selection of filters used in the installation program. crystal candy dish
K-shell Radiation Emission Recall that atoms have electrons arranged in a closed "skin" of different energy. K-shell is the lowest energy state of an atom. An incoming electron can give K-shell electrons enough energy to close out of their power state. Approximately 0.1% of the electrons produce K-shell vacancy, most hot products. Then, tungsten high energy electrons (outer layer) could fall in the K-shell. The energy lost by the electrons fall is shown in an x-ray photon is emitted. Meanwhile, higher energy electrons is divided into empty energy states in the outer layer and so on. Produce K-shell X-ray emission is more intense than Bremsstrahlung, and x-ray photons that come in a single wavelength. When the outer-shell electrons drop into the inner shell, they emit a photon quantized "characteristics" of the element. Energy characteristic X-rays are produced only very weakly dependent on the chemical structure in which the atoms are bonded, showed that the non-bonding crystal candy dish atomic shells are X-ray sources. The characteristics of the resulting spectrum is superimposed on the continuum as shown in the graph below. An ionized atom remains for a very short time (about 10-14 seconds) and thus atoms can be ionized by the incident electron repeatedly arrive approximately every 10-12 seconds.
2010 (6) November (6) bremsstrahlung radiation and radiation emission K shell X-rays and gamma rays radiographer examination PROFESSIONAL STANDARD HISTORY OF RADIOLOGY OS scapula kV High Technique