Simulated plasma facing component measurements for an in situ surface diagnostic on Alcator C-Mod

Hartwig, Z. S.; Whyte, D. G.
October 2010
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10E106
Academic Journal
The ideal in situ plasma facing component (PFC) diagnostic for magnetic fusion devices would perform surface element and isotope composition measurements on a shot-to-shot (∼10 min) time scale with ∼1 μm depth and ∼1 cm spatial resolution over large areas of PFCs. To this end, the experimental adaptation of the customary laboratory surface diagnostic-nuclear scattering of MeV ions-to the Alcator C-Mod tokamak is being guided by ACRONYM, a Geant4 synthetic diagnostic. The diagnostic technique and ACRONYM are described, and synthetic measurements of film thickness for boron-coated PFCs are presented.


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