SP E kick-off meeting 2024

Tuesday 23 Jan 2024, 09:30 → 12:30 Europe/Berlin

1 Overview of SP E in 2024¶

Speaker: J. Likonen (VTT)

SPE_2024_kick-off_meeting_Likonen.pptx

2 ENEA activities in 2024: Participation in the LIBS experiment at VTT and at JET using RH, and in the data analysis of CF LIBS - plans¶

Speaker: Almaviva (ENEA)

WPPWIE_SP_E_KoM_23-01-2024_SA.pdf

• Status of the LIBS system to be used with RH boom at JET was presented
• Prototype LIBS toll has been developed at ENEA
• It will be equipped with the optical fiber and the spectrometer to be used at JET

Tasks in 2024:

• The setup will be tested at VTT on JET relevant samples
• ENEA will participate in the LIBS experiments at VTT and at JET
• Data analysis with CF LIBS of VTT and JET experiments

 

3 FZJ activities in 2024: Participation in the LIBS experiment at VTT and at JET using RH, and in the data analysis of CF LIBS, Characterization of JET divertor tiles with LID-QMS and TDS, and metallography – plans¶

Speaker: T. Dittmar (FZJ)

FZJ_SPE_KOM_2024.pptx

Status:

• FZJ designed spectrometer for  LIBS set-up on remote handling arm in JET
• LIBS@JET, Littrow spectrometer and photomulipliers to be delivered to JET in Feb 2024
• LID-QMS analysis of core samples from tiles 0 and 1 will be completed in February
• TDS analysis of Be samples exposed in ILW1-3 completed

Plans for 2024:

• Agreed about LID-QMS analysis of Be limiter tile 2XR10 (ILW3) for poloidal D profile
• Completion of metallography of W lamellae samples, Langmuir probes and IWGL samples with RE damage
• Transfer of spectrometer to JET, and commisioning and calibration
• Participation in the LIBS experiments at VTT and JET
• Fredis will be out of operations from 2nd half of 2024 for an extended period due to construction work on the new hot cells in the same room as FREDIS

 

4 IAP activities in 2024: Analysis of samples from JET divertor tiles with TDS and GDOES - plans¶

Speakers: C. Porosnicu (IAP), E. Grigore (IAP)

SPE KoM 2024 IAP CP.pptx

SPE_KoM_2024_IAP_E_Grigore.pdf

Tasks in 2024:

• Cutting of limiter tiles and W lamellae
• Samples (limiter, W lamellae, louvre clip ) to be shipped for analysis to FZJ, CCFE, IPPLM, UoL and VTT
• Sample preparation for GDOES and TDS
• TDS analysis of Be samples
• Louvre clip samples: chemical structure of co-deposits with XPS
• Fuel retention studies using GDOES and TDS

Discussion on sample analyses:

• W samples can be analysed with GDOES (sample size has tto be 16mm)
• Analysis of Be castellation samples not possible because they are too small
• Be coated Inconel samples can be analysed with GDOES
• Be samples for LIBS experiments at VTT analysed under SPB
• XRD also available for SPE

Actions:

• Meetings with CCFE and VTT to discuss about cutting of limiter tiles and W lamellaes
• Comparison of GDOES data with other analysis results for D retention in divertor tiles
• Distribution of limiter and W lamellae samples
• Shipment of Be samples for LIBS experiments at VTT

5 IPPLM activities in 2024: Participation in the LIBS experiment at VTT and at JET using RH, and in the data analysis of CF LIBS, Electron microscopy and nanoindentation of JET PFCs – plans¶

Speakers: E. Fortuna (IPPLM), P. Gasior (IPPLM)

IPPLM_LIBS_SPE_KoM2024.pptx

IPPM_2024_SPE_kick-off-meeting.pdf

Tasks in 2024:

• Nanoindentation and microscopy of Langmuir probes 16IN 5, 7, 8, 9  and W lamellae samples from stack A, C, D
• Preparation of an article reporting the results for W lamellae samples from stack B
• Participation in the LIBS experiments at VTT and at JET
• Data analysis of LIBS spectra, especially pre-processing for optimisation for machine learning models
• Validation of the machine learning models developed on synthetic data

Actions:

• Shipment of Langmuir probes (analysed at VR) and W lamellae samples to IPPLM

6 ISPP_UL activities in 2024: Participation in the LIBS experiment at VTT and at JET using RH, and in the data analysis of CF LIBS, Tritium and composition analysis of JET samples – plans¶

Speakers: J. Butikova (ISPP_UL), E. Pajuste (ISPP_UL)

WPPWIE_SPE_ISSP_UL_23-01-2024.pptx

WPPWIE_SPE_ISSP_UL_ICP_23-01-2024.pptx

Tasks in 2024:

• Completion of fuel retention studies using FC, TDS (simulation of C39 baking cycle) and SEM
• Analysis of samples from W lamellae (stack A, C, D)
• Louvre clip: chemical structure of co-deposits using FT-IR and other technique if necessary
• Tritium measurements by electrochemical dissolution of W lamellae samples, TDS and full combustion (for full tritium recovery FC performed also after dissolution and TDS)
• Preparation of paper on baking studies
• Participation in the LIBS experiments at VTT and at JET
• Data analysis of LIBS spectra

Actions:

• Shipment of W lamellae samples (from stacks A, C, D) to ISSP_UL after cutting
• Shipment  of louvre clip samples to ISSP_UL for FT-IR analyses 

7 CU activities in 2024: Participation in the LIBS experiment at VTT and at JET using RH, and in the data analysis of CF LIBS – plans¶

Speaker: P. Veis (CU)

P_Veis WP PWIE SPE KoM 23 Jan 2024 def.pptx

Tasks in 2024:

• Participation in the LIBS experiments at VTT and at JET
• Preparation of a paper for PSI2024 reporting LIBS and SIMS comparison of results for JET limiter samples
• ps LIBS measurements on WTa and WTaD on Mo under Ar at intermediate and low pressure (first results to be publised at Nordic LIBS conference)
• CF- LIBS analysis of impurities in JET limiter samples
• Numerical treatments of LIBS data for depth profiles and by CF-LIBS
  
   

8 IST activities in 2024: Characterization of JET divertor tiles using ion beam analysis – plans¶

Speaker: N. Catarino (IST)

IST - SPE_2024_kick-off_meeting.pptx

Tasks in 2024:

• Completion of analysis of IBA results for divertor tiles 4, 7, 8
• IBA analysis of limiter tiles 2XR9 (exposed in ILW2+3) and 4D23 (ILW3)
• IBA analysis of mirror cassettes and tubes

Other analyses:

• Rotating collectors (ILW3) measured but spectra not analysed (no Langmuir data for tile 4)

Actions:

• Follow-up meeting with FZJ to discuss about IBA analysis of LID-QMS spots and fresh surfaces next to laser spots to check if laser removed all D 

9 VR activities in 2024: Characterization of JET plasma facing and diagnostics components using ion beam analysis – plans¶

Speakers: D. Primetzhofer (VR), M. Rubel (VR), P. Petersson (VR)

SPE_VR.pptx

Tasks in 2024:

• Review of ¹⁵N and ¹⁸O data. These markers were puffed into plasma during last day of C wall in  2009
• ¹⁵N and ¹⁸O data published in different papers but data is somewhat scattered
• Comparison of u-NRA data with LID-QMS, i.e. analysis of laser spots with u-beam to determine if LID-QMS laser has desorbed D completely
• Analysis of pre-damaged mirrors which will be removed in 2024

Actions:

• Follow-up meeting with FZJ and IST to dicuss about analysis of LID-QMS spots
• Follow-up meeting with CCFE to discuss about activity of pre-damaged mirrors

10 UKAEA activities in 2024: TDS and microscopy analysis of JET PFCs – plans¶

Speaker: Y. Zayachuk (UKAEA)

240123_SPE_KoM_UKAEA.pptx

Tasks in 2024:

• Participation in LIBS installation & commissioning at UKAEA
• Participation in off-site commissioning and calibration
• Participation in operation for LIBS measurements and operation
• Review planning for LIBS measurement locations following final JET operations with RE
• Planning for associated tile removal
• Finalization of baking cycle experiments
• Finalization of retention in Be (poloidal limiters and UDP, including melt damage)
• Studies of retention in bulk W (tile 5 lamella samples)
• Microscopy, comparison of RE and typical disruption damage to Be upper limiter 
• Coordination activity, sample distribution, sample preparation, contact for JET DTE3 samples

Actions:

• Follow-up meetings to discuss about shipment of tiles and components for cutting
  
  
   

11 Discussion on tasks and identification of gaps¶

12 Final remarks and future actions¶

Speaker: J. Likonen (VTT)