| 词汇 | example_english_beta-particle |
| 释义 | Examples of beta particleThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. He turned to aluminium, which emitted an alpha particle and produced sodium, which then decayed into magnesium by betaparticle emission. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In other cases the product nucleus is unstable and decays, typically emitting protons, electrons (betaparticle) or alpha particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He tried lead, without success, and then fluorine in the form of calcium fluoride, which emitted an alpha particle and produced nitrogen, decaying into oxygen by betaparticle emission. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are several different kinds of these particles, but the majority are alpha particles, beta particles, neutrons, and protons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Count rates are normally associated with the measurements of particles, such as alpha particles and beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Negatively charged beta particles or positively charged alpha particles, positrons or fission fragments may be utilized. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Although beta particles scatter much more than alpha particles, a range can still be defined; it frequently amounts to several hundred centimeters of air. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These systems use radioisotopes that produce low energy beta particles or sometimes alpha particles of varying energies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A material that spontaneously emits this kind of radiationwhich includes the emission of alpha particles, beta particles, and gamma raysis considered radioactive. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are special plastic shields that stop beta particles, and air will stop most alpha particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Typical particles include alpha particles, beta particles and neutrons, as well as mesons that constitute cosmic rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The first beta decays are rapid and may release high energy beta particles or gamma radiation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beta particles are electrons or positrons and can travel farther than alpha particles in air. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such contamination presents a hazard because of the radioactive decay of the contaminants, which emit harmful ionising radiation such as alpha particles or beta particles, gamma rays or neutrons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A sample of radium metal maintains itself at a higher temperature than its surroundings because of the radiation it emits alpha particles, beta particles, and gamma rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Rutherford initially believed they might be extremely fast beta particles, but their failure to be deflected by a magnetic field indicated they had no charge. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When a charged particle (for example, an alpha or betaparticle) interacts with the mixture, the fluid is ionized. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It occurs when a neutron decays into a proton in a nucleus, releasing the betaparticle and an antineutrino. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, no betaparticle is emitted, but only an electron neutrino. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The low specific activity and relatively low energy of its betaparticle have been said to limit the radioactive hazards of this isotope. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The continuous energy spectra of betaparticle occurs because is shared between the betaparticle and a neutrino. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The radioisotopes typically decay into other elements upon radiating an alpha or betaparticle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Helium-7 also emits a betaparticle as well as a gamma ray. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When passing through matter, a betaparticle is decelerated by electromagnetic interactions and may give off bremsstrahlung x-rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beta decay is the release of a betaparticle, a high-energy electron. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Se-79 decays by emitting a betaparticle with no attendant gamma radiation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Helium-6 decays by emitting a betaparticle and has a half-life of 0.8 second. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To monitor betaparticle emission, the filters use various densities of plastic. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Other betaparticle-emitting radioisotopes can also serve. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sr by emission of a negative betaparticle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Th-234 has a half-life of 24.1 days, and when it decays, it emits a betaparticle, and in so doing, it transmutes into protactinium-234. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ac, which decays with a half-life of 21.772 years, predominantly emitting beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sr results in the delivery of radioactive emissions (beta particles in this case) directly to the area of bony problem (where calcium turnover is greatest). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The beta particles essentially transfer electronic charge from the thin film to the cantilever. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Low energy beta particles are needed to prevent the production of high energy penetrating bremsstrahlung radiation that would require heavy shielding. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This method is also known as beta counting, because it is the beta particles emitted by the decaying atoms that are detected. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The radium decay series yields a spectrum of beta particles with a wide range of energies. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, since beta particles have different velocities, the radiation was inhomogeneous. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. U itself, and most of this radiation is beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It responds also to alpha and beta particles, but, unlike most scintillators, it does not glow in ultraviolet light. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beta particles are charged particles (usually with a negative electrical charge) that are released from nuclear explosions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The production of beta particles is termed beta decay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, efficiency is generally low due to the poor interaction of gamma rays compared with alpha and beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Radium radionuclides emit alpha and beta particles as well as gamma rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such a detector may be looking for alpha and beta particles, and gamma radiation will affect this. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this particular application they are planar multi-wire detectors for alpha and beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It emits beta particles of low to medium energy but no gamma rays, so has little hazard on external exposure, but only if ingested. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Sr results in the delivery of beta particles directly to the area of bony problem, where calcium turnover is greatest. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Since most of the affected atoms are ionized indirectly by the secondary beta particles, photons are considered to be indirectly ionizing. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The beta particles emitted are a form of ionizing radiation also known as beta rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The other sources of noise, such as alpha and beta particles, can be eliminated by various shielding materials, such as lead, plastic, thermo-coal, etc. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Electrons can also participate in nuclear reactions, such as nucleosynthesis in stars, where they are known as beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When slid to the open position, beta particles are allowed to directly penetrate the ionization chamber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Both alpha and beta particles have an electric charge and mass, and thus are quite likely to interact with other atoms in their path. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Xe would be able to decay releasing only beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Technetium-99 is used as a gamma ray-free source of beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Radium 228 emits beta particles, and is also a concern for human health through inhalation and ingestion. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most diagnostic radionuclides emit gamma rays, while the cell-damaging properties of beta particles are used in therapeutic applications. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The therapeutic component is largely due to the beta particles, but the gamma rays make it easier to locate the distribution. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For both the gas proportional counter and liquid scintillation counter, what is measured is the number of beta particles detected in a given time period. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These chambers often have an end window made of material thin enough, such as mylar, so that beta particles can enter the gas volume. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In pool-type nuclear reactors, beta particles (high-energy electrons) are released as the fission products decay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The fallout emits alpha and beta particles, as well as gamma rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Of these, only beta particles have sufficient penetrating power to travel more than a few centimeters in air. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It appears in electron micrograph as clusters, or rosette of beta particles that resemble ribosomes, located near the smooth endoplasmic reticulum. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beta particles are also used in quality control to test the thickness of an item, such as paper, coming through a system of rollers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Such neutrons would escape rapidly from the fuel and become a free neutron, with a mean lifetime of about 15 minutes before decaying to protons and beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beta particles emitted from the isotopic sample transfer energy to the solvent molecules: the cloud of the aromatic ring absorbs the energy of the emitted particle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It emits beta particles and gamma rays. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During this process, the radionuclide is said to undergo radioactive decay, resulting in the emission of gamma ray(s) and/or subatomic particles such as alpha or beta particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The counters work by detecting flashes of light caused by the beta particles emitted by as they interact with a fluorescing agent added to the benzene. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this context, bremsstrahlung is a type of secondary radiation, in that it is produced as a result of stopping (or slowing) the primary radiation (beta particles). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The beta particles emitted by the radioisotope destroys the associated thyroid tissue with little damage to surrounding tissues (more than 2.0 mm from the tissues absorbing the iodine). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The high energies of alpha and beta particles mean that a trail is left, due to many ions being produced along the path of the charged particle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For this reason, the high-speed electrons from internal conversion are not beta particles, since the latter come from beta decay, where they are newly created in the process. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The side placed on the eye is a very thin and delicate silver film that will contain the strontium but allow the beta particles to escape. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As tritium decays, it emits beta particles; these strike the phosphor, causing the phosphor to give off photons, much like the cathode ray tube in a television. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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