{"id":82,"qualified_id":"DM82","process":"Permeation","process_types":[{"abbreviation":"MPM","description":"Permeation"}],"method":"Experiment","scaled":false,"material":"W","alloy":"","material_composition":"99.95%","species":{"qualified_id":"F4","text":"T","charge":0},"comment":"Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.","refs":[{"qualified_id":"B66","authors":"M. Shimada, R. Pawelko","title":"Tritium permeability in polycrystalline tungsten","journal":"Fusion Engineering and Design","volume":"146","page_start":"1988","page_end":"1992","year":2019,"doi":"10.1016/j.fusengdes.2019.03.083","bibcode":"2019FusED.146.1988S","url":"https://dx.doi.org/10.1016/j.fusengdes.2019.03.083"}],"json_data":{"P0":{"value":2.13e-09,"units":"mol.m-1.s-1.Pa-1/2"},"Ep":{"value":0.97,"units":"eV"},"Trange":[573,873]}}