Modelling of impurity transport and plasma wall interaction at linear ...

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Outline Introduction to ERO code Specifics of ERO version for linear devices Examples of simulations Be injection at PISCES-B Chemical erosion mitigation at PISCES-B Methane injection at Pilot-PSI Summary 02/09/2010 D.Borodin | Oak Ridge WS | Forschungszentrum Jülich No 2
3D MC impurity transport code ERO Background Plasma C x+ ,Be x+ ,… CD z 0,+ re-eroded/ reflected particles Input: n e , T e,i , geometry C, Be, … CD 4 PFC (substrate Be, C, W, Mo, …) Local transport: ionisation, dissociation friction (Fokker-Planck), thermal force Lorenz force (including ExB component) cross-field diffusion Plasma-surface interaction: physical sputtering/reflection chemical erosion (CD 4 ) (re-)erosion and (re-)deposition HMM and TRYDYN surface models 02/09/2010 D.Borodin | Oak Ridge WS | Forschungszentrum Jülich No 3
Page 1: Member of the Helmholtz Association
Page 5 and 6: ERO version for linear devices 02/0
Page 7 and 8: Particularities for linear devices
Page 9 and 10: Benchmark of elastic collisions mod
Page 11 and 12: Be Injection at PISCES-B 02/09/2010
Page 13 and 14: Be spectroscopy at PISCES by 2D cam
Page 15 and 16: Radial profiles at oven (z=150mm):
Page 17 and 18: Be/C mixing at PISCES-B: mitigation
Page 19 and 20: Radial profiles at oven (z=150mm):
Page 21 and 22: Instantenious carbide formation - s
Page 23 and 24: Effective mitigation time - effect
Page 25 and 26: Pilot-PSI (effective D/XB for CH) 0
Page 27 and 28: C-H database in ERO code Reaction c
Page 29 and 30: Summary & Outlook The simulation o

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