{"id":72,"qualified_id":"DM72","process":"Permeation","process_types":[{"abbreviation":"MPM","description":"Permeation"}],"method":"Experiment","scaled":false,"material":"W","alloy":"","material_composition":"> 99.95 wt%","species":{"qualified_id":"F3","text":"H","charge":0},"comment":"Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.","refs":[{"qualified_id":"B61","authors":"R. Frauenfelder","title":"Permeation of Hydrogen through Tungsten and Molybdenum","journal":"The Journal of Chemical Physics","volume":"48","page_start":"3955","page_end":"3965","year":1968,"doi":"10.1063/1.1669720","bibcode":"1968JChPh..48.3955F","url":"https://dx.doi.org/10.1063/1.1669720"}],"json_data":{"P0":{"value":7.6e-07,"units":"mol.m-1.s-1.Pa-1/2","unc":2.5e-07},"Ep":{"value":1.37,"units":"eV","unc":0.04},"Trange":[1050,2400]}}