TY - GEN
T1 - Modelling of tritium retention and target lifetime of the ITER divertor
AU - Kirschner, A.
AU - Droste, S.
AU - Borodin, D.
AU - Philipps, V.
AU - Samm, U.
AU - Federici, G.
AU - Roth, J.
PY - 2005
Y1 - 2005
N2 - Erosion, deposition and transport of eroded material in the divertor of ITER are modelled with the Monte Carlo impurity transport code ERO taking into account chemical erosion, physical sputtering, enhanced erosion of redeposited carbon and beryllium deposition. With increasing exposure time continuous deposition of beryllium leads to reduced carbon erosion along the divertor plates. The limit of discharges possible from the estimated long-term tritium retention ranges between 440 using an effective sticking of unity for redeposited hydrocarbons and 380 for an effective sticking of zero. The lifetime of the divertor plates is less critical than tritium-retention, in the worst case about 7000 ITER discharges. Erosion due to transient heat loads (ELMs or disruptions) are not yet included in the modelling.
AB - Erosion, deposition and transport of eroded material in the divertor of ITER are modelled with the Monte Carlo impurity transport code ERO taking into account chemical erosion, physical sputtering, enhanced erosion of redeposited carbon and beryllium deposition. With increasing exposure time continuous deposition of beryllium leads to reduced carbon erosion along the divertor plates. The limit of discharges possible from the estimated long-term tritium retention ranges between 440 using an effective sticking of unity for redeposited hydrocarbons and 380 for an effective sticking of zero. The lifetime of the divertor plates is less critical than tritium-retention, in the worst case about 7000 ITER discharges. Erosion due to transient heat loads (ELMs or disruptions) are not yet included in the modelling.
UR - http://www.scopus.com/inward/record.url?scp=84873397733&partnerID=8YFLogxK
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AN - SCOPUS:84873397733
SN - 9781622763320
T3 - 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
SP - 353
EP - 356
BT - 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
T2 - 32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
Y2 - 27 June 2005 through 1 July 2005
ER -