The potential of several new methods to reduce measurement time and improve precision in mass measurements and other Penning trap experiments is explored.University of Washington.;Pinegar, David Brian.University of Washington.Pinegar, D. B.. "Tools for a precise tritium to helium-3 mass ...
The previous tritium beta decay experiments at Mainz and at Troitsk have achieved upper limits on the neutrino mass of about 2eV/c2 . The KATRIN experiment under construction will improve the neutrino mass sensitivity down to 200meV/c2 by increasing strongly the statistics and—at the same time...
The fusion of deuterium with tritium 3H+2H→4He+n+17.6MeV is even more efficient in that about four-thousandth of the total mass is converted into energy. The fusion fuel reserves in the form of deuterium, the heavy isotope of hydrogen with an isotopic abundance of 0.015%, are estimated to...
from the second physics run of the Karlsruhe Tritium Neutrino experiment. In this experiment,mνis probed via a high-precision measurement of the tritiumβ-decay spectrum close to its endpoint. This method is independent of any cosmological model and does not rely on assumptions whether the neutri...
yielding a deuteron/proton mass ratio at 5 × 1012; new measurements of HD /3He , HD /T , and T /3He leading to a tritium beta-decay Q-value with an uncertainty of 22 meV, and atomic masses of the helion and triton at 13 × 1012; and a new measurement of the m...
We discuss the prominent role this physical observable plays in the determination of the internal self... Lopes de Sa, Rafael Coelho. - State University of New York at Stony Brook. 被引量: 7发表: 2013年 Result of the Zürich experiment to measure the mass of e from tritium β-decay ...
Reznik [111, 112] found that satellite cells are more numerous in areas undergoing regeneration and that these cells incorporate tritium-labeled thymidine. He considered them "stem cells" capable of providing my- oblasts for the mature mammal and for regeneration of skeletal muscle tissue. lJi...
The KATRIN experiment aims to measure the effective mass of the electron antineutrino from the analysis of electron spectra stemming from the beta-decay of molecular tritium with a sensitivity of 200 meV. Therefore, a daily throughput of about 40 g of gaseous tritium is circulated in a ...
An atom is considered as the smallest particle of a chemical element that is existing in nature. All substances are made up of either neutral atoms or ionized atoms. The atoms of all elements have three subatomic particles i.e., electrons, protons, and neutrons....
Within the framework of the shell model of the nucleus with a harmonic oscillator, the differential probability of the beta decay of tritium is calculated, taking into account of second-class currents, the possible admixture of right lepton currents, and the antineutrino mass, not only in the ki...