Methane (CH4) Energy (eV) BEB (A^2) 14.25 0.000 14.50 0.045 15.00 0.137 15.50 0.231 16.00 0.326 16.50 0.421 17.00 0.516 17.50 0.609 18.00 0.701 18.50 0.791 19.00 0.878 19.50 0.964 20.00 1.047 20.50 1.128 21.00 1.207 21.50 1.283 22.00 1.356 22.50 1.427 23.00 1.496 23.50 1.562 24.00 1.627 26.00 1.865 28.00 2.092 30.00 2.293 32.00 2.468 34.00 2.622 36.00 2.756 38.00 2.874 40.00 2.976 45.00 3.176 50.00 3.315 55.00 3.410 60.00 3.471 65.00 3.507 70.00 3.524 75.00 3.526 80.00 3.518 85.00 3.502 90.00 3.479 95.00 3.451 100.00 3.419 105.00 3.385 110.00 3.349 115.00 3.312 120.00 3.273 125.00 3.234 130.00 3.195 135.00 3.155 140.00 3.116 145.00 3.077 150.00 3.038 160.00 2.962 170.00 2.888 180.00 2.817 190.00 2.748 200.00 2.682 210.00 2.619 220.00 2.558 230.00 2.500 240.00 2.445 250.00 2.391 300.00 2.156 350.00 1.963 400.00 1.804 450.00 1.669 500.00 1.554 550.00 1.455 600.00 1.368 650.00 1.292 700.00 1.224 750.00 1.164 800.00 1.109 850.00 1.060 900.00 1.015 950.00 0.974 1000.00 0.937 1100.00 0.870 1200.00 0.813 1300.00 0.764 1400.00 0.720 1500.00 0.682 1600.00 0.647 1700.00 0.616 1800.00 0.588 1900.00 0.563 2000.00 0.540 2100.00 0.519 2200.00 0.500 2300.00 0.482 2400.00 0.465 2500.00 0.449 2600.00 0.435 2700.00 0.422 2800.00 0.409 2900.00 0.397 3000.00 0.386 4000.00 0.303 5000.00 0.251