Speakers
Description
To overcome statistical and systematic limitations arising from the rovibrational final-state distribution of molecular tritium, future precision mass-measurement experiments are pursuing atomic tritium sources. Within the Karlsruhe Mainz Atomic Tritium Effort (KAMATE), we investigate the dissociation fraction of thermal effusive atomic sources. In these sources, molecular gas is directed through a thin tungsten capillary heated to ~ 2600 K, where dissociation occurs via high-temperature surface and gas-phase processes. Due to the radioactive nature of tritium, initial R&D work for the source and diagnostic tools development is carried out with hydrogen.
The dissociation efficiency is governed primarily by the gas flow rate and the temperature at the capillary exit. In this poster, we present quadrupole mass spectrometer ionization-scan measurements of the resulting atomic beam and thermal-radiation spectrometry measurements of the capillary temperature to determine the dissociation efficiency of these thermal sources.
| Collaboration or Other Affiliation | Project 8 |
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