function [ids_struct_out] =  tcv_get_ids_tf(shot, ids_structures)
% Get the vacuum toroidal field
ids_struct_out = ids_structures;

tmp = gdat(shot, 'b0');
ids_struct_out.b_field_tor_vacuum_r.data = tmp.data; 
ids_struct_out.b_field_tor_vacuum_r.time = tmp.t;
ids_struct_out.r0 = tmp.r0;