{"id":89,"qualified_id":"DM89","process":"Diffusivity","process_types":[{"abbreviation":"MDF","description":"Diffusion"}],"method":"Experiment","scaled":false,"material":"W","alloy":"","material_composition":"99.99%","species":{"qualified_id":"F4","text":"T","charge":0},"comment":"Tracer technique, T/H ratio 0.0001. Data provided by M. Lavrentiev (UKAEA, 2024) with permission from STEP.","refs":[{"qualified_id":"B68","authors":"T. Otsuka, T. Hoshihira, T. Tanabe","title":"Visualization of hydrogen depth profile by means of tritium imaging plate technique: determination of hydrogen diffusion coefficient in pure tungsten","journal":"Physica Scripta","volume":"T138","page_start":"014052","year":2009,"doi":"10.1088/0031-8949/2009/t138/014052","bibcode":"2009PhST..138a4052O","url":"https://dx.doi.org/10.1088/0031-8949/2009/T138/014052"}],"json_data":{"D0":{"value":3e-07,"units":"m2.s-1","unclo":2e-07,"unchi":2e-07},"Ed":{"value":0.39,"units":"eV"},"Trange":[473,673]}}