Energy (eV),CHnBr+ [10-16 cm2],±6%,CHn+ [10-16 cm2],±6%,Br+ [10-16 cm2],±6%,H+ [10-17 cm2],±6% 13,0.382,0.042,,,,,, 14,0.729,0.066,,,,,, 16,1.35,0.12,0.158,0.024,,,, 18,1.82,0.13,0.415,0.037,,,, 20,2.16,0.13,0.684,0.048,,,, 22.5,2.57,0.15,0.958,0.067,0.080,0.032,, 25,3.01,0.18,1.25,0.08,0.167,0.033,, 30,3.24,0.19,1.66,0.10,0.334,0.037,0.154,0.009 35,3.43,0.21,2.02,0.12,0.497,0.030,0.603,0.036 40,3.53,0.21,2.29,0.14,0.657,0.039,1.04,0.06 50,3.59,0.22,2.49,0.15,0.824,0.049,1.87,0.11 60,3.58,0.21,2.6,0.16,0.961,0.058,2.7,0.16 80,3.57,0.21,2.69,0.16,1.04,0.062,3.79,0.23 100,3.52,0.21,2.62,0.16,1.02,0.061,4.11,0.25 125,3.27,0.20,2.54,0.15,0.932,0.056,4.03,0.24 150,3.1,0.19,2.38,0.14,0.852,0.051,3.67,0.22 200,2.82,0.17,2.07,0.12,0.657,0.039,3.03,0.18 300,2.36,0.14,1.72,0.10,0.489,0.029,2.28,0.14 400,2.02,0.12,1.51,0.09,0.366,0.022,1.89,0.11 500,1.77,0.11,1.29,0.08,0.302,0.018,1.69,0.10 600,1.58,0.09,1.14,0.07,0.248,0.015,1.49,0.09 800,1.22,0.07,0.876,0.05,0.186,0.011,1.25,0.08 1000,1.09,0.07,0.799,0.05,0.154,0.009,1.06,0.06