mber of lines may be given, and the kick will be the sum of those
 multipoles.
<br><br>
 This feature allows calculation of quadrupole, octupole, etc., response functions.

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<p><b><a name='TDMomentumTransfer'></a>TDMomentumTransfer</b>
<br/><i>Section</i>: Time-Dependent::Response
<br/><i>Type</i>: block
<br/><br> Momentum-transfer vector for the calculation of the dynamic structure factor.
 When this variable is set, a non-dipole field is applied, and an output file
 <tt