SP B.2 & SP B.3 kick-off meeting 2022
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Europe/Berlin
Description
https://us02web.zoom.us/j/87674736864?pwd=czhKb1JXSUFrMDNiaVZXM28rSGtNUT09
Meeting ID: 876 7473 6864
Passcode: 987245
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Welcome and news from WP PWIESpeakers: David Douai (CEA), Michael Reinhart (FZJ), Sebastijan Brezinsek (FZJ)
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Overview of SP B and SP B.2 & SP B.3 in 2022Speaker: Antti Hakola (TEKES / VTT)
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Status of WEST samples availability in 2022 and plans for analyses in different labsSpeaker: Mathilde Diez (CEA)
- WEST work in C4 will concentrate on C4 marker tiles (samples sent to RUs in February, 2 spare samples available) and creating a summary of C3 marker-tile results --> action on CEA to coordinate
- NB1! On C4 samples, deposition areas larger and deposits thicker and ISP/OSP erosion areas shifted and expanded --> differences expected compared to C3 analyses
- NB2! Use the agreed s coordinate system and make measurements in poloidal direction (~central line)
- In addition on the agenda are (i) completing full-tile analyses of C5 markers + sending the tiles to VTT, (ii) initiating analyses of ITER-like PFUs (full-tile analyses ongoing, cutting plan being discussed)
- Pre-characterization of Phase II samples completed in 2021
- Questions:
- CP: Erosion and deposition rates on C3 and C4 markers? Comparable to AUG, clearly < 1 nm/s.
- WEST work in C4 will concentrate on C4 marker tiles (samples sent to RUs in February, 2 spare samples available) and creating a summary of C3 marker-tile results --> action on CEA to coordinate
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MPG activities in 2022 on WEST and W7-X samplesSpeakers: Martin Balden (IPP), Matej Mayer (IPP)
- WEST PFUs: SEM and IBA measurements of full-scale tiles
- Besides front surfaces, tile side faces (=gaps) can be measured + areas in between core samples
- Pending tasks: (i) C3 and C4 gap data analyses, (ii) ITER-like PFU data analyses, (iii) C5 marker-tile measurements --> should be available for VTT cutting in the end of the year
- W7-X samples: focus on OP2.1 and 2.2 phases
- (i) Marker samples with W + 600 nm Mo + 100 nm W coatings for erosion studies at inner heat shield, (ii) after the campaign analysis of deposition patterns on standard water-cooled tiles, (iii) W heavy-alloy TDUs in the baffle region, (iv) C-coated TZM screws
- OP2.1 in late 2022, maybe some samples will be out in 2023 for analyses (decision only to be made in the next months) --> otherwise only after 2024
- In the meantime: B deposition studies using the midplane manipulator as well as erosion during GDC or due to CX neutrals, again using manipulator
- CP: water-cooled tiles from the divertor can only be taken out after many years and campaigns --> might be beyond FP9
- CP: is dust an issue based on WEST results? It has to be considered, at least, because delamination of thick deposits may occur
- WEST PFUs: SEM and IBA measurements of full-scale tiles
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Status of W7-X samples availability in 2022 and plans for analyses in different labsSpeaker: Marcin Rasinski (FZJ)
- Available W7-X samples
- 13C analyses of OP1.2B samples as well as composition of deposits; 16 out of 20 TE elements cut and measured --> next step is calculating 13C amounts and receiving W7-X mapping data (so far relative deposition patterns are available)
- NRA vs. LIBS comparison made
- Interesting to compare the results with those from other groups --> action on AH
- Questions: (i) LIBS wavelength for B measurements --> to be clarified by Marcin; (ii) to be clarified if samples can be sent around to Pavel for LIBS studies.
- Available W7-X samples
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IPPLM activities in 2022 on WEST and W7-X samplesSpeaker: Elzbieta Fortuna-Zalesna (IPPLM)
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He campaign on AUG and related actions for SP BSpeaker: Antti Hakola (TEKES / VTT)
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Status of AUG samples availability in 2022 and plans for analyses in different labsSpeakers: Dr Karl Krieger (IPP), Martin Balden (IPP)
- All AUG tasks proceeding well:
- AUG He campaign 2022 --> all OK --> next meeting in first week of April
- AUG deposition cracks --> campaign integrated, interesting crack networks seen (mainly SEM and CLSM, also some metallography involved) --> PSI 2022 by V. Rohde for first results
- Continuation of 2021 samples analyses --> PSI 2022 as the target
- New melt experiment in 12.04.2022 --> pre-characterization done
- Karl: W samples being transported into FZJ (PSI-2 exposure + FIB trenches) and graphite samples to be sent to VTT on Monday
- Intrinsic Mo impurity always available but at least we have avoided Mo samples next to fuzz samples
- All AUG tasks proceeding well:
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1-slide summary of JSI activities in 2022Speaker: Mitja Kelemen (JSI)
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1-slide summary of RBI activities in 2022Speaker: Ivancica Bogdanovic Radovic (RBI)
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1-slide summary of VR activities in 2022Speaker: Per Petersson (VR)
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1-slide summary of IST activities in 2022Speakers: Eduardo Alves, Rodrigo Mateus (IST)
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1-slide summary of IAP activities in 2022Speakers: Dr Eduard Grigore, Dr Ion Tiseanu
- GDOES measurements of WEST samples; noticeable is B and O contents as well as XPS-GDOES comparison
- XRF measurements may help in surface contamination studies
- Martin: put the focus on measuring the thickness of entire W coating, not only the marker (which is largely eroded); analyses can be extended into standard tiles (dozens of tiles available in stock...) --> action on Emmanuelle and Edi to discuss
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1-slide summary of NCSRD activities in 2022Speaker: Konstantina Mergia (National Centre for Scientific Research “Demokritos”)
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Discussion
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Final remarks and future actionsSpeaker: Antti Hakola (TEKES / VTT)
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