Abstract
The thermal desorption technique has been used to investigate the3He release from titanium tritide samples with the initial composition TiH*1.8–1.9 (H* — protium, deuterium, tritium) varied in tritium content. It is shown that, depending on the holding time or amount of3He generated by tritium decay (to the atomic ratio of3Hegen/Ti = 0.81), thermal desorption spectra for3He in the range from room temperature to ∼ 1500°C may have from one to five peaks. Data are included about thermodesorption peak temperature varying with titanium tritide ‘aging’. Estimates have been made for the quantities of3He accounting for different peaks, with storage until3Hegen/Ti = 0.24. The few peaks as observed in thermal desorption spectrum are attributed to radiogenic helium of the titanium tritide lattice having different states.
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