Capabilities: IBA, microscopy, LIBS --> both for SP B.2 and SP B.3
AUG samples: continue analyses of W fuzz samples (from 2019), correlation between grain orientation and fuzz formation
W7-X: continue 13C analyses on various TDUs, LIBS vs. IBA cross check
WEST: C4 marker tiles, wants to be involved --> action on AH
Other activities: ps-LIBS of samples exposed in PSI-2, impact of loading on MAGNUM-PSI samples
WEST samples: focus on areas by TEM where there are interesting features to be learnt, Martin has a huge database of SEM images --> can be used for identifying areas of interest!
09:35
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09:45
MPG activities in 2021: analysis of AUG and WEST samples and samples from MAGNUM-PSI – plans and capabilities (SP B.2)¶10m
AUG samples: marker samples (2020) waiting for analyses; gap samples from Karl available; samples exposed to reversed Ip/Bt --> analysis of interesting deposits; samples from boron dropper experiment; melt samples; arcing samples
Maybe 1, 2, and 5 under B.2, while 3, 4, and 6 under B.3
WEST samples: C4 marker samples, erosion and surface modifications but also arcing of interest
MAGNUM-PSI samples: analysis of samples from SP A experiments (monoblocks)
Emmanuelle: comparison between AUG and WEST concerning deposited layers!
Mathilde: C5 tiles analysis schedule? Analysis can be started in 2021 but finished in 2022!
09:45
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09:55
MPG activities in 2021: analysis of W7-X samples – plans and capabilities (SP B.2 and SP B.3)¶10m
Old W7-X samples: (i) OP 1.2b samples/tiles analyzed, results presented in PFMC; (ii) re-deposition of carbon assessed and also presented in PFMC but SEM analyses only in 2021
New W7-X samples: pre-characterization of W-coated tiles --> measurements done, analyses ongoing
Sebastijan: no new tiles taken out in 2022, think about the strategy for closing existing gaps (cracks, damages)in the meantime; how about extrapolations to long-pulse operations?
Joint meeting with W7-X, SP B and modelling groups --> action on Sebastijan
09:55
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10:05
JSI activities in 2021: analysis of roughness samples and components from AUG and WEST – plans and capabilities (SP B.2 and SP B.3)¶10m
SP B.2 (Sabina): roughness samples (produced in Milan, both lab experiments and AUG exposures) --> needs to be put together in the form of a publication --> action on AH
SP B.2 (Sabina): microbeam measurements (NRA, PIXE) for old roughness samples and gap samples --> agreement with Iva's data; issues with the PIXE detector --> delays for analyses
SP B.2 (Sabina): new roughness samples to be characterized with improved spatial resolution as well as WEST samples
Results from Au marker samples to be reported in the midterm meeting!
SP B.3 (Matjaz): focus points differences between W and WN coatings; capable of doing SEM, OM, and microscopy
Sebastijan: check which materials can be done, no carbides!
XPS pool quite restricted --> action on AH
10:05
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10:15
RBI activities in 2021: ion-beam analyses of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2)¶10m
IBA of samples: (i) gap samples (PIXE), (ii) Au marker samples (PIXE, RBS in um-scale), (iii) characterization of dust from AUG (micro-NRA), (iv) analyses of WEST samples (RBS, TOF-ERDA)
Martin: correlate Iva's WEST results with Martin's database, variations not too strong, why?
Emmanuelle: do also profiling in the other direction (top to bottom)! Mathilde will send slides on shadowing to Iva --> action on Mathilde
In addition to WEST samples, new AUG samples becoming available!
10:15
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10:25
VTT activities in 2021: analysis of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2 and SP B.3)¶10m
W7-X samples: cut into small pieces and sent to IPPLM --> analyses ongoing
WEST samples: 3 samples already received --> SEM and FIB, W splashes observed; question on how much coating is in the grooves and how much deposit --> not an easy task (to be used as a reference for erosion studies)
AUG samples: at the moment no needs
FTU samples: can be finished in 2021 (leftover from FP8)
Other samples: MAGNUM-PSI or PSI-2 samples only later, GyM samples from ENEA --> action on AH
Sebastijan: real WP DIV monoblocks from MAGNUM-PSI to be analyzed? --> action on Sebastijan
10:35
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10:45
VR activities in 2021: ion-beam analyses of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2)¶10m
XRD, XRF, SEM, TEM, AFM, XPS; data from JET available
Start with Be reference samples --> action on AH to dig out
Plasma samples from WEST --> C3 samples of VTT already available, action on AH
JET samples can be incorporated here --> action on Jari to organize a separate meeting
11:05
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11:20
Discussion on tasks and identification of gaps¶15m
Coordinated action to check the data obtained from analysis of different samples by different methods/labs --> action on AH to think about
Separate here the analyses of tokamak/stellarator samples (responsibility of machine representative or PIs) and analyses of reference samples (dedicated person needed)
