Tag Archive for 'Tritium'

Interior view of the KATRIN main spectrometer. Image credit: M. Zacher / KATRIN Collaboration.

KATRIN Physicists Measure Upper Mass Limit of Neutrino

Apr 11, 2025 by News Staff

Physicists with the KArlsruhe TRItium Neutrino (KATRIN) experiment report the most precise measurement of the upper mass limit of the neutrino to date,...

Illustration of the 70-m-long KATRIN beamline: the transport of β-electrons and magnetic adiabatic collimation of their momenta p are illustrated; (a-f) view into the tritium source depicts three systematic effects: molecular excitations during β-decay (a), scattering of electrons off the gas molecules (b) and spatial distribution of the electric potential in the source Usrc(r, z) (c); the view into the spectrometer illustrates the main background processes arising from radon decays inside the volume of the spectrometer (d), highly excited Rydberg atoms sputtered off from the structural material via α-decays of 210Po (e) and positive ions created in a Penning trap between the two spectrometers (f); low-energy electrons, created in the volume as a consequence of radon decays or Rydberg-atom ionizations, can be accelerated by qUana towards the focal-plane detector, making them indistinguishable from signal electrons. Image credit: KATRIN Collaboration, doi: 10.1038/s41567-021-01463-1.

KATRIN Experiment Sets New Limit on Neutrino Mass

Feb 15, 2022 by Enrico de Lazaro

Since the discovery of neutrino oscillations, physicists know that neutrinos have non-zero mass. However, the absolute neutrino-mass scale remains unknown....

The precision measurements of tritium and helium-3 nuclei reveal new questions in understanding of nuclear structure. Image credit: DOE’s Jefferson Lab.

Experiments with Tritium and Helium-3 Reveal New Questions in Understanding of Nuclear Structure

Jun 9, 2020 by News Staff

Physicists from the Jefferson Lab Hall A Tritium Collaboration have compared the nuclei of helium and hydrogen isotopes to each other to get a clearer...