Energy (eV),CH4+ [10-16 cm2],±5%,CH3+ [10-16 cm2],±5%,CH2+ [10-17 cm2],±6.5%,CH+ [10-17 cm2],±6.5%,C+ [10-18 cm2],±8.5%,H2+ [10-18 cm2],±7.5%,H+ [10-17 cm2],±5.5%
15,0.182,0.009,0.035,0.002,,,,,,,,,,
17.5,0.479,0.024,0.220,0.011,0.050,0.003,,,,,,,,
20,0.825,0.041,0.474,0.024,0.157,0.010,,,,,,,,
22.5,1.03,0.05,0.685,0.034,0.264,0.017,,,,,,,,
25,1.20,0.06,0.857,0.043,0.519,0.034,0.041,0.003,,,0.061,0.005,0.069,0.004
30,1.36,0.07,1.05,0.05,1.31,0.09,0.292,0.019,0.300,0.026,0.106,0.008,0.287,0.016
35,1.41,0.07,1.11,0.06,2.03,0.13,0.746,0.048,1.41,0.12,0.602,0.045,0.700,0.038
40,1.45,0.07,1.14,0.06,2.48,0.16,1.12,0.07,2.74,0.23,1.50,0.11,1.30,0.07
45,1.50,0.08,1.19,0.06,2.79,0.18,1.36,0.09,3.44,0.29,2.23,0.17,1.96,0.11
50,1.53,0.08,1.22,0.06,2.88,0.19,1.44,0.09,4.27,0.36,2.68,0.20,2.49,0.14
60,1.55,0.08,1.26,0.06,3.02,0.20,1.63,0.11,4.92,0.42,3.21,0.24,3.29,0.18
70,1.56,0.08,1.27,0.06,3.07,0.20,1.73,0.11,5.55,0.47,3.52,0.26,3.80,0.21
80,1.55,0.08,1.26,0.06,3.11,0.20,1.72,0.11,5.97,0.51,3.64,0.27,4.10,0.23
90,1.54,0.08,1.26,0.06,3.04,0.20,1.74,0.11,5.94,0.50,3.71,0.28,4.28,0.24
100,1.52,0.08,1.24,0.06,3.04,0.20,1.67,0.11,5.92,0.50,3.69,0.28,4.30,0.24
110,1.49,0.07,1.22,0.06,3.00,0.19,1.63,0.11,5.98,0.51,3.59,0.27,4.29,0.24
125,1.44,0.07,1.19,0.06,2.87,0.19,1.54,0.10,5.78,0.49,3.45,0.26,4.12,0.23
150,1.38,0.07,1.13,0.06,2.66,0.17,1.40,0.09,5.32,0.45,3.22,0.24,3.81,0.21
175,1.31,0.07,1.08,0.05,2.46,0.16,1.27,0.08,4.81,0.41,2.84,0.21,3.53,0.19
200,1.25,0.06,1.03,0.05,2.33,0.15,1.16,0.08,4.44,0.38,2.53,0.19,3.28,0.18
250,1.13,0.06,0.934,0.047,1.99,0.13,0.981,0.064,3.56,0.30,2.14,0.16,2.68,0.15
300,1.04,0.05,0.855,0.043,1.77,0.12,0.844,0.055,3.10,0.26,1.89,0.14,2.30,0.13
400,0.891,0.045,0.719,0.036,1.39,0.09,0.643,0.042,2.13,0.18,1.38,0.10,1.77,0.10
500,0.778,0.039,0.638,0.032,1.19,0.08,0.524,0.034,1.70,0.14,1.11,0.08,1.43,0.08
600,0.686,0.034,0.560,0.028,1.03,0.07,0.435,0.028,1.43,0.12,0.991,0.074,1.20,0.07
700,0.622,0.031,0.507,0.025,0.892,0.058,0.378,0.025,1.25,0.11,0.834,0.063,1.01,0.06
800,0.552,0.028,0.454,0.023,0.798,0.052,0.327,0.021,0.972,0.083,0.721,0.054,0.871,0.048
900,0.516,0.026,0.420,0.021,0.726,0.047,0.302,0.020,0.926,0.079,0.588,0.044,0.774,0.043
1000,0.476,0.024,0.385,0.019,0.654,0.043,0.272,0.018,0.827,0.070,0.542,0.041,0.688,0.038