SP B.5 kick-off meeting 2023

Wednesday 1 Mar 2023, 14:00 → 17:00 Europe/Berlin

Join Zoom Meeting

 

https://us02web.zoom.us/j/86118358187?pwd=b0EyTm5tVWtncXJrTWUwdVB6d2U4UT09

Meeting ID: 861 1835 8187
Passcode: 797936

1 Overview of SP B and SP B.5 in 2023

Speaker: Antti Hakola (TEKES / VTT)

SPB.5_Introduction_Hakola_010323.pptx

2 Be dust formation – plans for 2023 and comparison against JET-ILW results

Speaker: Corneliu Porosnicu (IAP)

Kick-off Be dust - 2023 (2).pptx

• Proposal for using new arcing-type of device for producing Be dust inside crucibles and analysis of the produced dust afterwards --> relies on brushing the crucible for dust accumulated on the surfaces
• Controlled scanning of the parameter space to see what is critical in producing dust as at JET-ILW or why in JET so little dust is produced after all --> what is the physics reason for this?
• Recommendations to use also Si collector wafers, mounted on the crucible walls
• Analysis programme of the dust samples to be defined afterwards --> RBI already committed to performing some part of the measurements within the PMs allocated to them under SP B.2/SP B.3
• In 2024, proceed to more complex conditions, e.g., considering the role of pure sputtering, melting etc. besides arcing
• Check the status of the task in May

3 W dust formation – plans for 2023 and comparison against DEMO safety case

Speakers: Gheorghe Dinescu (IAP), Tomy Acsente

KOM SPB5 Acsente T W dust -march 2023.pdf

• Study the production of W dust particles in D2 - and assess the role of different parameters on the production rate and the properties of the dust particles (e.g., applied energy, amount of Ar added etc.)
• In 2024, the studies can be expanded to arcing-type of sources, making possible to compare the outcomes of Be and W tasks
• Progress of the task to be followed up in May-June

4 Hypervelocity dust impacts – plans for 2023

Speaker: Dr Marco De Angeli (ENEA-CNR Milan)

KoM 2023 SPB_5 Dust ENEA.pdf

• Expose W or W+O co-deposits into hypervelocity dust beam --> properties of the co-deposits to be agreed on in the SP B.1&SP B.4 kick-off meeting on Friday
• Analysis programme of the exposed samples to be agreed later on --> depend on what we see, can consider here RBI (for compositional analyses) and IPPLM (additional microscopy)
• In 2024, can consider also W+O+D2 samples and investigate (e.g., using TDS) how D2 content changes upon exposure
• To be followed up in June-July

5 Discussion

6 Dust investigations on AUG and WEST – 2023 plans

Speakers: Martin Balden (IPP), Volker Rohde

Rohde_PWIE_SP_b5_Kick_IPP.pdf

• Focus in 2023 on the AUG dust samples and their analyses and trying to get an idea of the main dust production mechanisms --> extrapolation only to happen in latter years
• WEST samples mainly handled by CEA --> can refer to the published data in a PhD dissertation
• Additional analyses from C5 samples can also be made for the characteristics of dust on them --> e.g., IPPLM is interested
• To be followed-up in June-July

7 Dust remobilization studies – 2023 plans

Speaker: Svetlana Ratynskaia (VR)

8 Discussion

9 Overall discussion

10 Final remarks and future actions

Speaker: Antti Hakola (TEKES / VTT)