Open Access

Table 1.

Space Weather D-index with corresponding solar dose rate contributions Ė sol given by equation (1).

Index D Dose rate interval [μSv/h]
D0 Ė sol < 5
D1 5 ≤ Ė sol < 10
D2 10 ≤ Ė sol < 20
D3 20 ≤ Ė sol < 40
D4 40 ≤ Ė sol < 80
D5 80 ≤ Ė sol < 160
D6 160 ≤ Ė sol < 320
D7 320 ≤ Ė sol < 640
D8 640 ≤ Ė sol < 1280

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