Table 1 Normalized number of open-sky muon events.

From: Instant snapshot of the internal structure of Unzen lava dome, Japan with airborne muography

Elevation angle range (deg)

Azimuth angle range (deg)

−41 ± 8°

−24 ± 12°

0 ± 12°

24 ± 12°

41 ± 8°

60 ± 3°

31.14

47.63

69.64

54.04

40.82

53 ± 4°

46.65

95.86

150.3

120.8

63.53

41 ± 8°

71.28

171.7

272.1

232.5

97.63

24 ± 12°

83.86

173.3

346.3

255.1

101.7