Dust collection after the high fluence campaign of the WEST tokamak
For Phase 2 of WEST, the lower divertor was entirely equipped with actively cooled ITER grade plasma-facing units made of chains of tungsten beveled monoblocks. In this configuration, dust particles were collected in 2023, after the first plasma campaign mainly dedicated to repetitive long pulses in...
Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Nuclear Materials and Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179124002710 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850069942624321536 |
|---|---|
| author | C. Arnas A. Campos M. Diez E. Bernard C. Brun C. Martin F. Gensdarmes S. Peillon E. Tsitrone |
| author_facet | C. Arnas A. Campos M. Diez E. Bernard C. Brun C. Martin F. Gensdarmes S. Peillon E. Tsitrone |
| author_sort | C. Arnas |
| collection | DOAJ |
| description | For Phase 2 of WEST, the lower divertor was entirely equipped with actively cooled ITER grade plasma-facing units made of chains of tungsten beveled monoblocks. In this configuration, dust particles were collected in 2023, after the first plasma campaign mainly dedicated to repetitive long pulses in the conditions of attached plasmas to the divertor. Due to a high particle fluence and a significant tungsten erosion, large quantities of dust were produced. In addition to those produced during off-normal events and the flaking of deposits which are typical of tokamak wall erosion, dust particles due to the flaking of pure tungsten thin layers deposited on the shadowed areas of beveled monoblocks were found. As specific characteristic, these thin layers may not adhere to the divertor and consequently, may be peeled off and mobilized during plasma operation. |
| format | Article |
| id | doaj-art-165035ae26dc420b95e316b4ce58d6b8 |
| institution | DOAJ |
| issn | 2352-1791 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj-art-165035ae26dc420b95e316b4ce58d6b82025-08-20T02:47:39ZengElsevierNuclear Materials and Energy2352-17912025-03-014210184810.1016/j.nme.2024.101848Dust collection after the high fluence campaign of the WEST tokamakC. Arnas0A. Campos1M. Diez2E. Bernard3C. Brun4C. Martin5F. Gensdarmes6S. Peillon7E. Tsitrone8CNRS, Aix-Marseille Université, PIIM, 13397 Marseille, France; Corresponding author.Aix-Marseille Université , CNRS, Centrale Marseille, FSCM, CP2M, 13397 Marseille, FranceCEA Cadarache, IRFM, 13108 St-Paul-Lez-Durance, FranceCEA Cadarache, IRFM, 13108 St-Paul-Lez-Durance, FranceCEA Cadarache, IRFM, 13108 St-Paul-Lez-Durance, FranceCNRS, Aix-Marseille Université, PIIM, 13397 Marseille, FranceLPMA, IRSN, 91192 Gif-sur-Yvette, FranceLPMA, IRSN, 91192 Gif-sur-Yvette, FranceCEA Cadarache, IRFM, 13108 St-Paul-Lez-Durance, FranceFor Phase 2 of WEST, the lower divertor was entirely equipped with actively cooled ITER grade plasma-facing units made of chains of tungsten beveled monoblocks. In this configuration, dust particles were collected in 2023, after the first plasma campaign mainly dedicated to repetitive long pulses in the conditions of attached plasmas to the divertor. Due to a high particle fluence and a significant tungsten erosion, large quantities of dust were produced. In addition to those produced during off-normal events and the flaking of deposits which are typical of tokamak wall erosion, dust particles due to the flaking of pure tungsten thin layers deposited on the shadowed areas of beveled monoblocks were found. As specific characteristic, these thin layers may not adhere to the divertor and consequently, may be peeled off and mobilized during plasma operation.http://www.sciencedirect.com/science/article/pii/S2352179124002710WEST tokamakTokamak dustTungsten layer flakingTungsten nanoparticles |
| spellingShingle | C. Arnas A. Campos M. Diez E. Bernard C. Brun C. Martin F. Gensdarmes S. Peillon E. Tsitrone Dust collection after the high fluence campaign of the WEST tokamak Nuclear Materials and Energy WEST tokamak Tokamak dust Tungsten layer flaking Tungsten nanoparticles |
| title | Dust collection after the high fluence campaign of the WEST tokamak |
| title_full | Dust collection after the high fluence campaign of the WEST tokamak |
| title_fullStr | Dust collection after the high fluence campaign of the WEST tokamak |
| title_full_unstemmed | Dust collection after the high fluence campaign of the WEST tokamak |
| title_short | Dust collection after the high fluence campaign of the WEST tokamak |
| title_sort | dust collection after the high fluence campaign of the west tokamak |
| topic | WEST tokamak Tokamak dust Tungsten layer flaking Tungsten nanoparticles |
| url | http://www.sciencedirect.com/science/article/pii/S2352179124002710 |
| work_keys_str_mv | AT carnas dustcollectionafterthehighfluencecampaignofthewesttokamak AT acampos dustcollectionafterthehighfluencecampaignofthewesttokamak AT mdiez dustcollectionafterthehighfluencecampaignofthewesttokamak AT ebernard dustcollectionafterthehighfluencecampaignofthewesttokamak AT cbrun dustcollectionafterthehighfluencecampaignofthewesttokamak AT cmartin dustcollectionafterthehighfluencecampaignofthewesttokamak AT fgensdarmes dustcollectionafterthehighfluencecampaignofthewesttokamak AT speillon dustcollectionafterthehighfluencecampaignofthewesttokamak AT etsitrone dustcollectionafterthehighfluencecampaignofthewesttokamak |