================================================================== Calculation using SRIM-2006 SRIM version ---> SRIM-2008.04 Calc. date ---> February 26, 2010 ================================================================== Disk File Name = Air_He_4 Ion = Helium [2] , Mass = 4.0026 amu Density = 1.2484E-03 g/cm3 = 5.0792E+19 atoms/cm3 Target is a GAS ======= Target Composition ======== Atom Atom Atomic Mass Name Numb Percent Percent ---- ---- ------- ------- C 6 000.01 000.01 O 8 023.18 025.05 N 7 075.53 071.47 Ar 18 001.28 003.46 ==================================== Bragg Correction = 0.00% Stopping Units = MeV/(mg/cm2) See bottom of Table for other Stopping units Ion = Helium [2] , Mass = 4.0026 amu Ion dE/dx dE/dx Projected Longitudinal Lateral Energy Elec. Nuclear Range Straggling Straggling ----------- ---------- ---------- ---------- ---------- ---------- 40.00 keV 6.259E-01 2.534E-02 578.94 um 134.44 um 141.71 um 45.00 keV 6.640E-01 2.334E-02 634.03 um 139.46 um 149.32 um 50.00 keV 7.001E-01 2.166E-02 686.80 um 143.82 um 156.17 um 55.00 keV 7.344E-01 2.023E-02 737.51 um 147.67 um 162.39 um 60.00 keV 7.671E-01 1.900E-02 786.39 um 151.09 um 168.06 um 65.00 keV 7.984E-01 1.792E-02 833.62 um 154.17 um 173.28 um 70.00 keV 8.285E-01 1.698E-02 879.35 um 156.95 um 178.09 um 80.00 keV 8.855E-01 1.538E-02 966.86 um 161.99 um 186.73 um 90.00 keV 9.386E-01 1.408E-02 1.05 mm 166.26 um 194.29 um 100.00 keV 9.884E-01 1.301E-02 1.13 mm 169.94 um 200.99 um 110.00 keV 1.035E+00 1.210E-02 1.20 mm 173.14 um 207.00 um 120.00 keV 1.080E+00 1.132E-02 1.28 mm 175.98 um 212.44 um 130.00 keV 1.122E+00 1.064E-02 1.35 mm 178.52 um 217.39 um 140.00 keV 1.162E+00 1.005E-02 1.42 mm 180.80 um 221.93 um 150.00 keV 1.200E+00 9.527E-03 1.48 mm 182.87 um 226.12 um 160.00 keV 1.237E+00 9.060E-03 1.54 mm 184.76 um 230.01 um 170.00 keV 1.272E+00 8.640E-03 1.61 mm 186.50 um 233.64 um 180.00 keV 1.306E+00 8.261E-03 1.67 mm 188.10 um 237.03 um 200.00 keV 1.370E+00 7.602E-03 1.78 mm 191.33 um 243.21 um 225.00 keV 1.443E+00 6.924E-03 1.92 mm 195.00 um 250.02 um 250.00 keV 1.509E+00 6.365E-03 2.06 mm 198.18 um 256.02 um 275.00 keV 1.570E+00 5.897E-03 2.19 mm 200.99 um 261.39 um 300.00 keV 1.624E+00 5.498E-03 2.31 mm 203.50 um 266.24 um 325.00 keV 1.674E+00 5.153E-03 2.43 mm 205.77 um 270.67 um 350.00 keV 1.718E+00 4.852E-03 2.55 mm 207.85 um 274.75 um 375.00 keV 1.758E+00 4.587E-03 2.66 mm 209.77 um 278.54 um 400.00 keV 1.794E+00 4.352E-03 2.77 mm 211.56 um 282.07 um 450.00 keV 1.853E+00 3.951E-03 2.99 mm 215.91 um 288.53 um 500.00 keV 1.897E+00 3.623E-03 3.20 mm 219.84 um 294.34 um 550.00 keV 1.929E+00 3.349E-03 3.41 mm 223.47 um 299.66 um 600.00 keV 1.950E+00 3.116E-03 3.61 mm 226.87 um 304.59 um 650.00 keV 1.961E+00 2.915E-03 3.82 mm 230.11 um 309.24 um 700.00 keV 1.964E+00 2.741E-03 4.02 mm 233.22 um 313.64 um 800.00 keV 1.951E+00 2.451E-03 4.43 mm 242.65 um 321.94 um 900.00 keV 1.918E+00 2.220E-03 4.84 mm 251.79 um 329.76 um 1.00 MeV 1.873E+00 2.032E-03 5.26 mm 260.85 um 337.31 um 1.10 MeV 1.821E+00 1.874E-03 5.69 mm 269.96 um 344.71 um 1.20 MeV 1.765E+00 1.741E-03 6.14 mm 279.23 um 352.06 um 1.30 MeV 1.709E+00 1.627E-03 6.60 mm 288.70 um 359.42 um 1.40 MeV 1.653E+00 1.527E-03 7.07 mm 298.42 um 366.86 um 1.50 MeV 1.599E+00 1.440E-03 7.57 mm 308.43 um 374.41 um 1.60 MeV 1.547E+00 1.363E-03 8.07 mm 318.73 um 382.11 um 1.70 MeV 1.499E+00 1.294E-03 8.60 mm 329.33 um 389.98 um 1.80 MeV 1.452E+00 1.232E-03 9.14 mm 340.24 um 398.05 um 2.00 MeV 1.368E+00 1.125E-03 10.28 mm 380.22 um 414.84 um 2.25 MeV 1.276E+00 1.017E-03 11.79 mm 441.21 um 437.17 um 2.50 MeV 1.197E+00 9.286E-04 13.41 mm 501.91 um 461.12 um 2.75 MeV 1.128E+00 8.551E-04 15.13 mm 562.75 um 486.76 um 3.00 MeV 1.068E+00 7.930E-04 16.95 mm 623.97 um 514.12 um 3.25 MeV 1.015E+00 7.398E-04 18.87 mm 685.71 um 543.22 um 3.50 MeV 9.679E-01 6.936E-04 20.89 mm 748.06 um 574.06 um 3.75 MeV 9.253E-01 6.532E-04 23.00 mm 811.08 um 606.63 um 4.00 MeV 8.868E-01 6.175E-04 25.21 mm 874.82 um 640.90 um 4.50 MeV 8.195E-01 5.571E-04 29.90 mm 1.11 mm 714.50 um 5.00 MeV 7.625E-01 5.080E-04 34.96 mm 1.33 mm 794.64 um 5.50 MeV 7.136E-01 4.673E-04 40.39 mm 1.55 mm 881.13 um 6.00 MeV 6.709E-01 4.329E-04 46.17 mm 1.76 mm 973.78 um 6.50 MeV 6.334E-01 4.035E-04 52.31 mm 1.97 mm 1.07 mm 7.00 MeV 6.000E-01 3.780E-04 58.80 mm 2.19 mm 1.18 mm 8.00 MeV 5.433E-01 3.360E-04 72.82 mm 2.98 mm 1.40 mm 9.00 MeV 5.021E-01 3.028E-04 88.14 mm 3.70 mm 1.65 mm 10.00 MeV 4.633E-01 2.758E-04 104.74 mm 4.41 mm 1.92 mm 11.00 MeV 4.320E-01 2.535E-04 122.63 mm 5.11 mm 2.20 mm 12.00 MeV 4.051E-01 2.346E-04 141.76 mm 5.81 mm 2.51 mm 13.00 MeV 3.816E-01 2.185E-04 162.12 mm 6.51 mm 2.84 mm 14.00 MeV 3.610E-01 2.046E-04 183.69 mm 7.22 mm 3.18 mm 15.00 MeV 3.426E-01 1.924E-04 206.45 mm 7.94 mm 3.54 mm 16.00 MeV 3.263E-01 1.816E-04 230.39 mm 8.67 mm 3.91 mm 17.00 MeV 3.115E-01 1.721E-04 255.49 mm 9.40 mm 4.31 mm 18.00 MeV 2.982E-01 1.635E-04 281.76 mm 10.15 mm 4.72 mm 20.00 MeV 2.749E-01 1.488E-04 337.68 mm 12.94 mm 5.59 mm 22.50 MeV 2.509E-01 1.339E-04 413.87 mm 16.93 mm 6.77 mm 25.00 MeV 2.311E-01 1.218E-04 496.98 mm 20.71 mm 8.05 mm 27.50 MeV 2.144E-01 1.119E-04 586.89 mm 24.40 mm 9.43 mm 30.00 MeV 2.002E-01 1.034E-04 683.47 mm 28.07 mm 10.90 mm 32.50 MeV 1.879E-01 9.626E-05 786.65 mm 31.76 mm 12.47 mm 35.00 MeV 1.772E-01 9.005E-05 896.34 mm 35.47 mm 14.13 mm 37.50 MeV 1.677E-01 8.462E-05 1.01 m 39.22 mm 15.88 mm 40.00 MeV 1.593E-01 7.984E-05 1.13 m 43.02 mm 17.71 mm 45.00 MeV 1.449E-01 7.179E-05 1.40 m 57.18 mm 21.65 mm 50.00 MeV 1.331E-01 6.527E-05 1.69 m 70.50 mm 25.94 mm 55.00 MeV 1.233E-01 5.988E-05 2.00 m 83.51 mm 30.56 mm 60.00 MeV 1.149E-01 5.534E-05 2.34 m 96.43 mm 35.52 mm 65.00 MeV 1.077E-01 5.147E-05 2.70 m 109.37 mm 40.79 mm 70.00 MeV 1.015E-01 4.813E-05 3.08 m 122.42 mm 46.39 mm 80.00 MeV 9.106E-02 4.263E-05 3.91 m 170.61 mm 58.52 mm 90.00 MeV 8.277E-02 3.831E-05 4.83 m 215.51 mm 71.88 mm 100.00 MeV 7.600E-02 3.481E-05 5.84 m 259.33 mm 86.41 mm 110.00 MeV 7.036E-02 3.191E-05 6.94 m 302.93 mm 102.11 mm 120.00 MeV 6.558E-02 2.948E-05 8.12 m 346.73 mm 118.93 mm 130.00 MeV 6.148E-02 2.740E-05 9.38 m 390.94 mm 136.85 mm 140.00 MeV 5.791E-02 2.561E-05 10.72 m 435.69 mm 155.85 mm 150.00 MeV 5.479E-02 2.405E-05 12.14 m 481.04 mm 175.91 mm 160.00 MeV 5.203E-02 2.267E-05 13.64 m 527.01 mm 197.00 mm 170.00 MeV 4.956E-02 2.145E-05 15.22 m 573.63 mm 219.11 mm 180.00 MeV 4.735E-02 2.036E-05 16.87 m 620.90 mm 242.21 mm 200.00 MeV 4.355E-02 1.849E-05 20.40 m 799.22 mm 291.35 mm 225.00 MeV 3.968E-02 1.660E-05 25.21 m 1.05 m 358.08 mm 250.00 MeV 3.654E-02 1.507E-05 30.47 m 1.29 m 430.47 mm 275.00 MeV 3.393E-02 1.381E-05 36.15 m 1.53 m 508.29 mm 300.00 MeV 3.173E-02 1.275E-05 42.26 m 1.76 m 591.34 mm 325.00 MeV 2.985E-02 1.184E-05 48.76 m 1.99 m 679.42 mm 350.00 MeV 2.821E-02 1.106E-05 55.66 m 2.22 m 772.34 mm 375.00 MeV 2.679E-02 1.038E-05 62.94 m 2.45 m 869.95 mm 400.00 MeV 2.553E-02 9.785E-06 70.59 m 2.69 m 972.06 mm 450.00 MeV 2.341E-02 8.780E-06 86.97 m 3.56 m 1.19 m 500.00 MeV 2.170E-02 7.967E-06 104.74 m 4.37 m 1.42 m 550.00 MeV 2.028E-02 7.297E-06 123.83 m 5.14 m 1.67 m 600.00 MeV 1.909E-02 6.734E-06 144.18 m 5.91 m 1.93 m 650.00 MeV 1.807E-02 6.255E-06 165.74 m 6.66 m 2.21 m 700.00 MeV 1.719E-02 5.841E-06 188.45 m 7.41 m 2.50 m 800.00 MeV 1.576E-02 5.163E-06 237.11 m 10.14 m 3.11 m 900.00 MeV 1.463E-02 4.630E-06 289.85 m 12.61 m 3.77 m 1.00 GeV 1.373E-02 4.200E-06 346.36 m 14.96 m 4.46 m 1.10 GeV 1.298E-02 3.845E-06 406.35 m 17.22 m 5.19 m 1.20 GeV 1.236E-02 3.548E-06 469.57 m 19.43 m 5.94 m 1.30 GeV 1.184E-02 3.294E-06 535.77 m 21.60 m 6.72 m 1.40 GeV 1.139E-02 3.075E-06 604.76 m 23.73 m 7.52 m 1.50 GeV 1.100E-02 2.885E-06 676.32 m 25.83 m 8.34 m 1.60 GeV 1.066E-02 2.717E-06 750.29 m 27.91 m 9.18 m 1.70 GeV 1.036E-02 2.568E-06 826.51 m 29.95 m 10.04 m 1.80 GeV 1.009E-02 2.435E-06 904.82 m 31.97 m 10.90 m 2.00 GeV 9.648E-03 2.208E-06 1.07 km 39.42 m 12.68 m 2.25 GeV 9.209E-03 1.979E-06 1.28 km 49.64 m 14.94 m 2.50 GeV 8.865E-03 1.795E-06 1.50 km 58.78 m 17.24 m 2.75 GeV 8.591E-03 1.642E-06 1.73 km 67.21 m 19.56 m 3.00 GeV 8.368E-03 1.514E-06 1.97 km 75.13 m 21.90 m 3.25 GeV 8.185E-03 1.406E-06 2.21 km 82.62 m 24.24 m 3.50 GeV 8.033E-03 1.312E-06 2.46 km 89.77 m 26.57 m 3.75 GeV 7.906E-03 1.230E-06 2.71 km 96.62 m 28.89 m 4.00 GeV 7.799E-03 1.158E-06 2.96 km 103.20 m 31.20 m 4.50 GeV 7.632E-03 1.038E-06 3.48 km 126.77 m 35.76 m 5.00 GeV 7.511E-03 9.405E-07 4.01 km 147.31 m 40.24 m 5.50 GeV 7.422E-03 8.604E-07 4.55 km 165.80 m 44.62 m 6.00 GeV 7.358E-03 7.933E-07 5.09 km 182.76 m 48.89 m 6.50 GeV 7.311E-03 7.361E-07 5.63 km 198.51 m 53.06 m 7.00 GeV 7.278E-03 6.868E-07 6.18 km 213.25 m 57.13 m 8.00 GeV 7.241E-03 6.062E-07 7.29 km 264.40 m 64.95 m ----------------------------------------------------------- Multiply Stopping by for Stopping Units ------------------- ------------------ 1.2484E-02 eV/Angstrom 1.2484E-01 keV/micron 1.2484E-01 MeV/mm 1.0000E+00 keV/(ug/cm2) 1.0000E+00 MeV/(mg/cm2) 1.0000E+03 keV/(mg/cm2) 2.4578E+01 eV/(1E15 atoms/cm2) 2.1455E+00 L.S.S. reduced units ================================================================== (C) 1984,1989,1992,1998,2006 by J.P. Biersack and J.F. Ziegler