J. Roth Bilateral Agreements EU-DOE: e.g.: PISCES operation (following talk by Russ Doerner) Bilateral Agreement EU-Russia: collaboration on Material damage.

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Presentation transcript:

J. Roth Bilateral Agreements EU-DOE: e.g.: PISCES operation (following talk by Russ Doerner) Bilateral Agreement EU-Russia: collaboration on Material damage in transient heat loads involving FZJ, ENEA, FZK, Kurtchatov, TRINITI Programme of bilateral EU-Russia collaboration Joachim Roth: Russian collaboration, Frascati, 2008

Meeting on EU-Russia bilateral agreement at PSI Toledo Presentations: Summary of work done on Dust production from W and CFC targets at TRINITI and Kurchatov L.N. Khimchenko, RRC "Kurchatov Institute", Moscow, Russia Summary of work done and status of TRINITI facility construction for testing of Be-coated and Be-clad targets N. Klimov, SRC RF TRINITI, Moscow, Russia FZK modelling for Be, W and CFC B. Bazylev, S. Pestchanyi, I.Landman CFC and W target characterization T. Hirai, J. Linke, Forschungszentrum Jülich, Germany Status of Article 7 contract and associated tasks A. Loarte, EFDA Close Support Unit – Garching (now ITER Org.)

L.N. Khimchenko

Status of CFC and tungsten PFCs testing 1WL5, ELMs, w = 0.5 MJ/m 2, 100 pulses, incidence angle 60 O Completed 2Absorbed energy density measurements by means of tungsten calorimeters at plasma incidence angle 80 O Completed 3WL5, ELMs, w = 0.5 MJ/m 2, 100 pulses, incidence angle 80 O Completed 4W2, disruptions, 5 pulses 5CFC5, disruptions, more than 10 pulses 6Additional argon plasma experimentsCompleted 7CFC1, disruptions, 5 pulses 81/2W3+1/2W4, disruptions, 5 pulses 91/2W2+1/2WL3, disruptions, 5 pulses N. Klimov, Kurtchatov Inst., Moscow

Status of QSPA modification for Be PFCs testing 1Preparation the room of Bochvar Institute for QSPA-Be facility installation: - building and assembly jobs; - wiring work; - special box installation. Completed 2Connection the special box and facility rooms to power supply and special ventilation system of Bochvar Institute Completed 3Assembling and testing of power supply system of plasma gun facility (capacitors battery, battery charging system and control systems) at TRINITI. Completed 4Transportation and installation of power supply system of plasma gun facility at the Bochvar Institute Completed 5Assembling and testing of vacuum system of plasma gun facility (plasma gun, target chamber, receiver, vacuum lines, pumps) at TRINITI. Completed 6Transportation and installation vacuum system of plasma gun facility at the Bochvar Institute In process 7Testing the all system together 8Measurements of plasma flow parameters and calibration 9First experiment with Be-target N. Klimov, Kurtchatov Inst., Moscow

ELM experiments (4) Varying of plasma incidence angle, W-1%La 2 O 3, Q = 0.5 MJ/m 2 α = 80 0 α = mm 20 exposures 1mm 50 exposures 1mm 100 exposures 1mm 20 exposures 1mm 50 exposures 1mm 100 exposures N. Klimov, Kurtchatov Inst., Moscow

code MEMOS is upgraded to 3D geometry for simulations of macrobrush target damage in real experimental conditions 3D code MEMOS B. Bazylev, S. Pestchanyi, I.Landman, FZK Germany

PEGASUS code: - Dust size distribution for NB31 - modelling for W cracks TOKES code: - TOKamak Equilibrium and Surface processes code - Impurity concentrations for C-Be-W ITER wall with ELMs Future plans: -For W, model for the heat loads below melting threshold taking the plasticity into account. -Dust particles production rates and size distributions have to be elaborated (W) and developed (Be). -In cooperation between EU and RF the modelling group in FZK will continue numerical simulations supporting the future experiments at the plasma gun and JUDITH facilities. Other codes: B. Bazylev, S. Pestchanyi, I.Landman, FZK Germany

CFC and W target characterization Presented by T. Hirai, J. Compan, J. Linke, G. Pintusk, K. Wittlich Forschungszentrum Jülich Germany with contributions from B.N. Bazylev a, G. Federici c, N. Klimov d, I.S. Landman a, A. Loarte a, M. Merola e, S.E. Pestchanyi a, A. Zhitlukhin d a FZK Germany, b FZJ Germany, c EFDA Garching Germany, d TRINITI Moscow RF, e IO Cadarache France CFC and W target characterization (1)Targets and thermal loads in QSPA facility (2)CFC target characterization (3)W target characterization (4)Summary Takeshi Hirai | Institute of Energy Research | FZJ

CFC and W target characterization Summary and conclusion CFC W energy density E / MJm -2 (500 µs) heat flux factor P · Δt / MWm -2 s 1/ melting of tile surface droplets bridging of tiles melting of tile edges crack formation cracking of pitch fibres PAN eros. > 100 shots PAN erosion > 50 shots PAN erosion > 10 shots negligible erosion edges negligible damage Takeshi Hirai | Institute of Energy Research | FZJ

Alberto Loarte, EFDA -CSU Garching Status of Article 7 contract and associated tasks Alberto Loarte European Fusion Development Agreement Close Support Unit - Garching Objectives and plans for EU-RF research contract (Contract signed ): Determine erosion/lifetime of the ITER first wall under ELM and disruption loads Determine erosion/lifetime of the ITER first wall under mitigated disruption loads Determine the effect of Be deposition on the ITER divertor target erosion and lifetime under ELM and disruption loads

Follow-up, EU participation, etc. Regular meetings in Moscow every ~ 6 months (only 2 meetings held: Kick-off meeting in Feb-2006 and 1 st meeting in Dec-2006) Participation of EU scientists in experiments/analysis for short term &long term stays possible to be agreed EU Targets will be returned to the EU for final destructive analysis Publication of results in journals/conferences carried out with agreement of EU and RF scientists/institutes involved and clearance by EFDA Practical Issues (I) Alberto Loarte, EFDA -CSU Garching

EU Co-ordination up 2007: EFDA CSU-Garching, Alberto Loarte since 2008: concerning technology: F4E, Gabriela Seibene concerning physics investigation: EFDA Understanding (with Gabriela): - Workprogramme PISCES completely Physics EFDA EU programme agreed with EU PWI TF leaders and integrated into SEWG Mixed Materials - Workprogramme TRINITI mostly Technology F4E Physics of surface damage EFDA Should remain integrated in SEWG Transient Loads co-ordinated by Michael Lehnen and Roman Zagorski Co-ordination of bilateral EU-Russia collaboration Joachim Roth: Russian collaboration, Frascati, 2008