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W gasket-thickness distribution at various pressures and anvil shapes compared between 1 atm and ∼400 GPa. Thickness distribution as a function of the radial distance from the center of the culet at four center pressures of ∼170, ∼240, ∼300, and ∼400 GPa, respectively. (A) Large region and (B) culet region. (C) Comparison of the anvil shapes between ambient pressure (black) and at ∼400 GPa (red) in different scales, large (C, Upper) and small (C, Lower).
