:term:`DAMPING_CONVERGENCE <DAMPING_CONVERGENCE (SCF)>`
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      The density convergence threshold after which damping is no longer performed, if it is enabled. It is recommended to leave damping on until convergence, which is the default. **Cfour Interface:** Keyword translates into :term:`CFOUR_SCF_DAMPING <CFOUR_SCF_DAMPING (CFOUR)>` 

      * **Type**: :ref:`conv double <op_c_conv>`
      * **Default**: 1.0e-18