r (m) | L (dB) | 1/r2 (m−2) | I (W∙m−2) |
0.3 | 53.2 | 11.111 | 2.089E−7 |
0.325 | 52.4 | 9.467 | 1.738E−7 |
0.35 | 51.7 | 8.163 | 1.479E−7 |
0.375 | 51.0 | 7.111 | 1.259E−7 |