Fig1-Fig5: Figures not associated with data produced during this work. fig6_fluct_response_matrix.txt: fluctuation response for fluctuations at different radial positions between R=2200mm and R=2260mm in V/1e19m-3. The radial coordinate is in mm. fig7_one_blob_event.txt: Reconstruction of one blob event with the light response, light response with noise, original density, reconstructed density and light response from the reconstructed density profile. fig8_average_deviation.txt: Relative noise levels vs. density reconstruction accuracy for undulation minimization and direct inversion for different blob sizes. fig9_size_vs_noise.txt: Relative noise levels vs. blob size reconstruction accuracy for undulation minimization and direct inversion for different blob sizes. fig10_position_vs_noise.txt: Relative noise levels vs. blob position reconstruction accuracy for undulation minimization and direct inversion for different blob sizes. basis_function_calculations.pdf: additional calculations which could not fit in the paper or the appendix.