SP B.2 & SP B.3 Kick-Off Meeting

Friday 11 Jun 2021, 09:00 → 12:00 Europe/Berlin

09:00 → 09:05 Welcome and introduction to WP PWIE

Speaker: Sebastijan Brezinsek (FZJ)

09:05 → 09:15 Overview of SP B and SP B.2 & SP B.3 in 2021

Speaker: Antti Hakola

SPB.2_B.3_Introduction_Hakola_110621.pdf

09:15 → 09:25 CEA activities in 2021: analysis of WEST PFUs – plans and capabilities (SP B.2 and SP B.3)

Speaker: Mathilde Diez

SPB.2_CEA_Diez_110621.pdf

• SP B.2: C3 marker tiles, analyses ongoing in other labs; C4 and C5 tiles being analysed by CEA (C5 tiles only recently become available)
• SP B.2: analysis of deposits on ITER-like PFUs (C4) --> done
• SP B.2: pre-characterization of components for WEST phase II --> done, exposure in 2022+
• SP B.3: coordination of distribution of PFUs for analyses
• Matej: erosion with the help of grooves --> not that easy
• Marcin: any samples to FZJ?
• We will discuss the analysis capabilities separately! --> action on AH

09:25 → 09:35 FZJ activities in 2021: analysis of W7-X, WEST, and AUG wall tiles – plans and capabilities (SP B.2 and SP B.3)

Speaker: Marcin Rasinski

SPB.2_FZJ_Rasinski_110621.pdf

• 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!
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09:35 → 09:45 MPG activities in 2021: analysis of AUG and WEST samples and samples from MAGNUM-PSI – plans and capabilities (SP B.2)

Speaker: Martin Balden

SPB.2_MPG_Balden_110621.pdf

• AUG samples: marker samples (2020) waiting for analyses; gap samples from Karl available; samples exposed to reversed I_p/B_t --> 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 → 09:55 MPG activities in 2021: analysis of W7-X samples – plans and capabilities (SP B.2 and SP B.3)

Speaker: Matej Mayer (IPP)

SPB.2_MPG_Mayer_110621.pdf

• 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 → 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)

Speakers: Matjaz Panjan, Sabina Markelj (JSI)

Markelj_JSI-Kick-off-meeting-SPB2-f.pdf

SPB.3_JSI_Panjan_110621.pdf

• 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 → 10:15 RBI activities in 2021: ion-beam analyses of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2)

Speaker: Iva Bogdanovic Radovic

SPB.2_RBI_Iva_110621.pdf

• 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 → 10:25 VTT activities in 2021: analysis of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2 and SP B.3)

Speaker: Antti Hakola (TEKES / VTT)

SPB.2_B.3_VTT_Hakola_110621.pdf

Action on AH to organize a follow-up meeting on analysis of new AUG samples

10:25 → 10:35 IPPLM activities in 2021: microscopy analyses of AUG, WEST, W7-X and reference samples – plans and capabilities (SP B.2 and SP B.3)

Speaker: Elzbieta Fortuna-Zalesna (IPPLM)

Kick-off meeting_PWIE_B1andB2_IPPLM_Fortuna.pptx

• 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 → 10:45 VR activities in 2021: ion-beam analyses of AUG, WEST, and W7-X samples – plans and capabilities (SP B.2)

Speaker: Per Petersson

SPB.2_VR_Petersson_110621.pdf

• Low-Z analyses by TOF-ERDA: WEST samples analyzed --> confirm the existence of Cu (and/or Ni); also D observed at large depths on the samples
• W7-X samples still pending, also to be cut (12 x 12 mm² is OK)
• In situ IBA + others (e.g. TDS up to 1550 degrees) following implantation --> action on AH to think about applications (sample size 10 x 10 mm²)
• MEIS/LEIS operational

10:45 → 10:55 IST activities in 2021: ion-beam analyses of WEST samples – plans and capabilities (SP B.3)

Speaker: Eduardo Alves

SPB.3_IST_Alves_110621.pdf

• Capabilities: IBA, AMS, PIXE; will start with WEST samples
• Action on AH to clarify the WEST samples to be sent to Eduardo!
• Also needed for JET tiles and W-isotope samples, NB! entire tiles can be measured

10:55 → 11:05 NCSRD activities in 2021: analysis of reference and plasma-exposed samples – plans and capabilities (SP B.3)

Speaker: Konstantina Mergia (National Centre for Scientific Research “Demokritos”)

SPB.3_NCSRD_Mergia_110621.pdf

• 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 → 11:20 Discussion on tasks and identification of gaps

• 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)

11:20 → 11:30 Needs for analyses/measurements in other labs