r (m)

L (dB)

1/r² (m⁻²)

I (W∙m⁻²)

0.3

52.3

11.111

1.698E−7

0.325

51.3

9.467

1.349E−7

0.35

51.0

8.163

1.259E−7

0.375

50.2

7.111

1.047E−7

0.4

49.6

6.250

9.120E−8

0.425

49.3

5.536

8.511E−8

0.45

48.7

4.938

7.413E−8

0.475

48.1

4.432

6.457E−8

0.5

47.4

4.000

5.495E−8

0.575

46.4

3.025

4.365E−8

0.75

44.5

1.778

2.818E−8

0.9

43.4

1.235

2.188E−8

1.075

42.0

0.865

1.585E−8