Estimation of index of power law rigidity spectrum of cosmic rays using effective rigidity of multidirectional muon detector

Earth, Planets and Space

Table 1 Characteristics of channels of the Nagoya muon detector

Channels	N ₀,10⁶ counts/h	σ,%	R _c, GV	R _m, GV	γ _m
V	2.76	0.06	11.5	59.4	–
N30	1.25	0.09	12.9	64.6	−1.13
E30	1.20	0.09	16.2	66.7	−0.97
S30	1.23	0.10	11.3	62.6	–
W30	1.26	0.09	9.4	61.8	–
NE39	0.58	0.14	17.9	72.0	−1.03
SE39	0.58	0.14	15.0	69.3	−1.14
SW39	0.60	0.13	9.2	65.6	–
NW39	0.62	0.13	11.0	66.6	−1.68
N49	0.61	0.13	12.9	83.0	−1.24
E49	0.58	0.14	21.0	88.3	−1.10
S49	0.60	0.13	10.9	80.5	−1.39
W49	0.62	0.13	9.3	79.3	−1.55
N64	0.18	0.27	11.0	105.0	−1.20
E64	0.17	0.28	25.1	113.7	−1.10
S64	0.18	0.27	10.8	103.7	−1.25
W64	0.18	0.27	8.7	103.0	−1.29