• Analysis of 𝐻𝛼(𝐷𝛼) Line Shape

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    • Keywords


      Plasma: energy profile: processes of atoms and molecules: simulation of 𝐷𝛼 line shape.

    • Abstract


      The particles energy distribution is derived directly from the 𝐻𝛼(𝐷𝛼) line shape, which is measured by two sets of OMA. The dissociative excitation of molecular is dominating when the local electron temperature is > 10 eV. The 𝐷𝛼 line shape is also simulated by the Monte–Carlo method, the molecular dissociation contributes to 57% neutral atoms and 53% emission intensity in front of the limiter, and 85% neutral atoms and 82% emission intensity in front of the wall. The processes of atoms and molecules influence on the energy balance is discussed in SOL, the power loss from molecular dissociation is 6 × 104 kW at SOL.

    • Author Affiliations


      Xu Wei1 Li Yan1

      1. Department of Physics, Guangzhou University, Guangzhou 510006, China.
    • Dates

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