Deuterium uptake in magnetic-fusion devices with lithium-conditioned carbon walls

P. S. Krstic, J. P. Allain, C. N. Taylor, J. Dadras, S. Maeda, K. Morokuma, J. Jakowski, A. Allouche, C. H. Skinner

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


Lithium wall conditioning has lowered hydrogenic recycling and dramatically improved plasma performance in many magnetic-fusion devices. In this Letter, we report quantum-classical atomistic simulations and laboratory experiments that elucidate the roles of lithium and oxygen in the uptake of hydrogen in amorphous carbon. Surprisingly, we show that lithium creates a high oxygen concentration on a carbon surface when bombarded by deuterium. Furthermore, surface oxygen, rather than lithium, plays the key role in trapping hydrogen.

Original languageEnglish (US)
Article number105001
JournalPhysical review letters
Issue number10
StatePublished - Mar 4 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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