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β β-ray radiation: high-speed movement of electron flow 0/-1e, through capable, ionization is weak, not about the physical world have been divided, but there are so divided β-rays. Beta particles that β particles, is when the β decay of radioactive substances, the release of high energy electrons, and the speed of up , Tiffany 1837 Three Diamond Ring, to 99% of the speed of light. In the process of β decay of radioactive nuclei emit electrons and neutrinos through into another nucleus, the electronic product is called β particles. Β decay in the positive, the nucleus of a proton into a neutron, while the release of a positron, in the

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About Interactions (1) energy loss of electrons: (2) electron scattering: (3) β-ray range and absorption. , Return to tiffany heart tag charm, Hazard protection factors 1. Time 2. from 3. Introduction to the electronic shielding mass ratio of protons, neutrons, much lighter when β particles through an electric field, if that is the negative electron, its path will be distorted to the positive direction. Through the magnetic field, if the magnetic field direction is from the inside out, the particles will be counter-clockwise twist, the path curved. Interactions (1) electron energy loss: a. ionization losses - when the fast electron through the target material, the extranuclear electron and atom inelastic collision, the matter ionization or excitation, and thus lose its energy, which and heavy charged particles in a similar situation. Ionization losses (electron impact energy loss) is the loss of β-ray energy in the material in an important way. b. radiation loss - this is the β particles in the nuclei of atoms with the material generated when non-elastic collision an energy loss. When the charged particles close to the nucleus, the speed rapidly reduced, it will , Elsa peretti bottle round bottle pendant, emit electromagnetic waves (photons), this electromagnetic radiation called bremsstrahlung. (2) electron scattering: β particles and the role of the target material when the nuclear Coulomb field, only to change the direction of movement, rather than radiation energy, this process is called elastic scattering. Since the electron mass is small, and thus scattering angle can be large (compared with α particles, β , Elsa Peretti Round earrings, particles scatter much larger), and multiple scattering occurs, the last departure from the original direction of motion. Meanwhile, the lower the incident electron energy, and the greater the atomic number of target material, scattering the more powerful. β particles through the multiple scattering in the material in its final scattering angle can be greater than 90 °, such as inverse scattering scattering. (3) β-ray range and absorption. Β particles in some relatively large binding energy through the target and, due to limited energy, when energy is exhausted yet piercing, there may be target atoms bound to is absorbed, the penetration distance and the size of energy. Against β-ray is a kind of charge, high-speed operation, from the radioactive decay of nuclides released from the particles. From man-made or nature of human being , Elsa Peretti tag pendant, (tritium, C-14, etc.) β-ray irradiation, β-ray radiation is more penetrating than α power, but through the same distance, it causes less damage. Some β-ray can penetrate the skin, resulting in emission of the injury. But once it enters the body causing more harm. β particles in vitro , Paloma's x charm, clothes can be cut, block, or a few millimeters thick aluminum foil completely blocked. Ionizing radiation is a sufficient energy to leave the atoms produced by electron radiation. Hereinafter referred to as radiation. Radiation from a number of unstable atoms, these radioactive atoms (refer to radionuclides or radioisotopes) in order to become more stable, secondary and high-energy nuclei release photons (γ rays). The process is called radioactive decay. For example, the existence in nature of natural radionuclide radium, radon, uranium and thorium. In addition, there are human activities (eg, atomic fission in nuclear reactors) and nature activities, as they release ionizing , Elsa peretti wedding band ring, radiation. In the decay process, radiation of the major products are α, β and γ. X-ray is another outer electron from the nucleus caused by radiation. Ionizing radiation induce chemical changes in the balance, certain changes can cause cancer. Ionizing radiation induced DNA genetic material in cells in the body damage, this effect may even spread to the next generation, leading to new generation of deformity, congenital leukemia ... in a lot of radiation exposure, can cause disease within a few hours or days, or leading to death. Major factor in protection against radiation sources, radiation hazards. How do we protect ourselves from excessive exposure, radiation protection, there are three main , Tiffany Elsa Peretti charm bracelet, factors: time, distance, shielding. 1. The time when you are near the radiation source, you have to stay a shorter time may be near in order to reduce radiation exposure. Suppose we imagine that we go to the seaside, for example, you spend a lot of time on the beach, so you will be exposed to the sun, the sun finally burns. If you spend less time in the sun, and more time in the shadows, You will not be burnt by the sun. 2. From the more away from the radiation source, the less you will be subject to exposure. We imagine an outdoor concert, you may , Tiffany Heart Tag Key Ring, be sitting in front of the performers, or sitting 50 yards distance from the stage, or sitting in the park across the street on the grass, your ears will be subject to different stimuli. You sit in front of the performers, and your ears will be damaged. 50 yards, that you will accept average. If you are sitting on the lawn nearby, you may not hear a concert held. As the Liezi radiation exposure, the more close to the source, the greater your chances of damage, the more far away from the lower exposure. β particles generally have a strong penetration capability, it can go in the air a few hundred centimeters away, which means that they can pass through several millimeters thick aluminum. 3. Shield around if you increase the radiation shielding, you will reduce the exposure. It's like in the rain, you do not have an umbrella of protection, will be wet. However, under the aegis , Tiffany Paloma Picasso Dove earrings, of the umbrella, as usual. Term Atlas Atlas more extended reading: 1

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