beta particlesdensitye-layerearthenergyfission productsgasesPersistent ionization of air at moderate heights, just below the E layer, after high-altitude nuclear detonations is predominantly due to radiations accompanying radioactive decay of fission products. The most important are 尾 particles, which ...
beta particlesenergyethanolionizationmixingquantitative analysistemperaturevaporsCurran and Reid have given an accountof their investigations on the primary ionization of β-particles in mixtures of argon and ethyl alcohol vapour. I have carried out some experiments on the specific ionization of fast β-...
is a high-energy, high-speed electron or positron emitted in the radioactive decay of an atomic nucleus, such as a potassium-40 nucleus, in the process of beta decay. Two forms of beta decay, β− and β+, respectively produce electrons and positrons. Beta particles are a ...
is a high-energy, high-speed electron or positron emitted in the radioactive decay of an atomic nucleus, such as a potassium-40 nucleus, in the process of beta decay. Two forms of beta decay, β− and β+, respectively produce electrons and positrons. Beta particles are a ...
The isotope effect was larger in the hydrocarbons investigated than for our previous experiments for ionization by beta particles from63Ni. For the hydrocarbons methane, ethane, acetylene, and ethylene there was found to be a very small increase of the order of 1%–3% in the isotope ratio as ...
The ionization chamber of the invention is suited for general utility measurement of the activity of solid and liquid samples, particularly for the measurement of carbon 14 and tritium activities, which consist of beta particles of relatively low energy. The chamber has provision for insertion of sa...
摘要: A formula is obtained for the calculation of the range of beta particles in the rectangular section of an ionization chamber depending on its dimensions and distance from the source. (tr-auth)关键词: engineering and equipment beta particles diffusion length energy range ionization chambers ...
Ionization in Pure Gases and the Average Energy to Make an Ion Pair for Alpha and Beta Particles DOI: http://dx.doi.org/10.1103/PhysRev.97.1668 WP Jesse,J Sadauskis - 《Phys Rev》 被引量: 86发表: 1955年 The Range-Energy Curves for Alpha-Particles and Protons Previous experiments have ...
摘要: cross-sections of molecules for ionization by electrons 关键词:physics atoms beta particles carbon 14 cross sections electrons elements energy gases hydrocarbons DOI: 10.1021/ja01584a009 被引量: 757 年份: 1956 收藏 引用 批量引用 报错 分享 ...
GEANT4 based Monte Carlo simulations have been carried out for the determination of efficiency and conversion factors of a gas-flow ionization chamber for beta particles emitted by 86 different radioisotopes covering the average-b energy range of 5.69 keV-2.061 MeV. Good agreements were found ...