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Abstract

The problem of deducing Xe from heat pulse propagation measurements is addressed. An extended rd diffusive model is described, which takes into account perturbed source and sink terms. Xe is expressed as a function of two observables, the heat pulse velocity v-HP and the radial damping rate alpha: Xe = 4.3 a nu-HP alpha. This expression is checked against full transport simulations and found accurate. Finally it is shown that the thus inferred Xe is a local value, not influenced by the Xe profile outside the measuring region.

Additional information

Authors: LOPES CARDOZO N, JET JOINT UNDERTAKING, ABINGDON (UK);TUBBING B, JET JOINT UNDERTAKING, ABINGDON (UK);TIBONE F, JET JOINT UNDERTAKING, ABINGDON (UK);TARONI A JET JOINT UNDERTAKING, ABINGDON (UK), JET JOINT UNDERTAKING, ABINGDON (UK)
Bibliographic Reference: WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK), MENTIONING REPORT JET-P(87)28, 1987
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