Example: 2D Geometry

This example shows the interaction of 1 keV hydrogen with a circular cross-section of a B-N dust grain (composed of 50% B, 50% N by number).

This figure shows the cross-section of a boron-nitride dust grain exposed to a mono-energetic beam of 1 keV hydrogen. The trajectories of hydrogen are shown in black, boron in dark orange, and nitrogen in lighter orange. Hydrogen enters at the left side of the circular mesh, at y=0.

Input File

[options]
name = "boron_dust_grain_"
track_trajectories = true
track_recoils = true
track_recoil_trajectories = true
write_files = true
stream_size = 8000
print = true
print_num = 10
weak_collision_order = 0
suppress_deep_recoils = false
high_energy_free_flight_paths = false
electronic_stopping_mode = 1
mean_free_path_model = 0
interaction_potential = 1
scattering_integral = 0
tolerance = 0.001
max_iterations = 100

[material_parameters]
energy_unit = "EV"
mass_unit = "AMU"
Eb = [ 0.0, 0.0,]
Es = [ 5.76, 0.0,]
Ec = [ 0.5, 0.5,]
n = [ 1.309e+29, 5.4e+28,]
Z = [ 5, 7,]
m = [ 10.811, 14,]
electronic_stopping_correction_factor = 1.0
energy_barrier_thickness = 1.7645653881793786e-10

[particle_parameters]
length_unit = "MICRON"
energy_unit = "EV"
mass_unit = "AMU"
N = [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,]
m = [ 1.008, 1.008, 1.008, 1.008, 1.008, 1.008, 1.008, 1.008, 1.008, 1.008,]
Z = [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,]
E = [ 1000.0, 1000.0, 1000.0, 1000.0, 1000.0, 1000.0, 1000.0, 1000.0, 1000.0, 1000.0,]
Ec = [ 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5,]
Es = [ 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0, 10.0,]
pos = [ [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,], [ -0.021, 0.0, 0.0,],]
dir = [ [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,], [ 0.9999999999984769, 1.7453292519934434e-6, 0.0,],]

[mesh_2d_input]
length_unit = "MICRON"
coordinate_sets = [ [ 0.0, 0.0, 0.0012558103905862675, 0.0, 0.02, 0.019960534568565433,], [ 0.0, 0.0012558103905862675, 0.0025066646712860853, 0.0, 0.019960534568565433, 0.019842294026289557,], [ 0.0, 0.0025066646712860853, 0.003747626291714493, 0.0, 0.019842294026289557, 0.019645745014573775,], [ 0.0, 0.003747626291714493, 0.004973797743297096, 0.0, 0.019645745014573775, 0.01937166322257262,], [ 0.0, 0.004973797743297096, 0.0061803398874989484, 0.0, 0.01937166322257262, 0.019021130325903073,], [ 0.0, 0.0061803398874989484, 0.00736249105369356, 0.0, 0.019021130325903073, 0.018595529717765027,], [ 0.0, 0.00736249105369356, 0.008515585831301454, 0.0, 0.018595529717765027, 0.01809654104932039,], [ 0.0, 0.008515585831301454, 0.009635073482034308, 0.0, 0.01809654104932039, 0.01752613360087727,], [ 0.0, 0.009635073482034308, 0.010716535899579934, 0.0, 0.01752613360087727, 0.0168865585100403,], [ 0.0, 0.010716535899579934, 0.011755705045849463, 0.0, 0.0168865585100403, 0.016180339887498948,], [ 0.0, 0.011755705045849463, 0.012748479794973795, 0.0, 0.016180339887498948, 0.015410264855515783,], [ 0.0, 0.012748479794973795, 0.013690942118573775, 0.0, 0.015410264855515783, 0.014579372548428232,], [ 0.0, 0.013690942118573775, 0.014579372548428232, 0.0, 0.014579372548428232, 0.013690942118573773,], [ 0.0, 0.014579372548428232, 0.015410264855515785, 0.0, 0.013690942118573773, 0.012748479794973793,], [ 0.0, 0.015410264855515785, 0.016180339887498948, 0.0, 0.012748479794973793, 0.011755705045849461,], [ 0.0, 0.016180339887498948, 0.0168865585100403, 0.0, 0.011755705045849461, 0.01071653589957993,], [ 0.0, 0.0168865585100403, 0.017526133600877274, 0.0, 0.01071653589957993, 0.009635073482034304,], [ 0.0, 0.017526133600877274, 0.018096541049320392, 0.0, 0.009635073482034304, 0.008515585831301454,], [ 0.0, 0.018096541049320392, 0.01859552971776503, 0.0, 0.008515585831301454, 0.007362491053693557,], [ 0.0, 0.01859552971776503, 0.019021130325903073, 0.0, 0.007362491053693557, 0.006180339887498949,], [ 0.0, 0.019021130325903073, 0.01937166322257262, 0.0, 0.006180339887498949, 0.004973797743297095,], [ 0.0, 0.01937166322257262, 0.019645745014573775, 0.0, 0.004973797743297095, 0.0037476262917144902,], [ 0.0, 0.019645745014573775, 0.019842294026289557, 0.0, 0.0037476262917144902, 0.0025066646712860853,], [ 0.0, 0.019842294026289557, 0.019960534568565433, 0.0, 0.0025066646712860853, 0.001255810390586266,], [ 0.0, 0.019960534568565433, 0.02, 0.0, 0.001255810390586266, -3.2162452993532734e-18,], [ 0.0, 0.02, 0.019960534568565433, 0.0, -3.2162452993532734e-18, -0.001255810390586268,], [ 0.0, 0.019960534568565433, 0.019842294026289557, 0.0, -0.001255810390586268, -0.0025066646712860875,], [ 0.0, 0.019842294026289557, 0.019645745014573772, 0.0, -0.0025066646712860875, -0.0037476262917144967,], [ 0.0, 0.019645745014573772, 0.01937166322257262, 0.0, -0.0037476262917144967, -0.004973797743297097,], [ 0.0, 0.01937166322257262, 0.019021130325903073, 0.0, -0.004973797743297097, -0.006180339887498951,], [ 0.0, 0.019021130325903073, 0.01859552971776503, 0.0, -0.006180339887498951, -0.00736249105369356,], [ 0.0, 0.01859552971776503, 0.01809654104932039, 0.0, -0.00736249105369356, -0.008515585831301454,], [ 0.0, 0.01809654104932039, 0.01752613360087727, 0.0, -0.008515585831301454, -0.00963507348203431,], [ 0.0, 0.01752613360087727, 0.0168865585100403, 0.0, -0.00963507348203431, -0.010716535899579938,], [ 0.0, 0.0168865585100403, 0.016180339887498948, 0.0, -0.010716535899579938, -0.011755705045849461,], [ 0.0, 0.016180339887498948, 0.015410264855515785, 0.0, -0.011755705045849461, -0.012748479794973795,], [ 0.0, 0.015410264855515785, 0.014579372548428228, 0.0, -0.012748479794973795, -0.013690942118573775,], [ 0.0, 0.014579372548428228, 0.01369094211857377, 0.0, -0.013690942118573775, -0.014579372548428234,], [ 0.0, 0.01369094211857377, 0.01274847979497379, 0.0, -0.014579372548428234, -0.015410264855515788,], [ 0.0, 0.01274847979497379, 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-0.019960534568565433,], [ 0.0, 0.0012558103905862628, -6.432490598706547e-18, 0.0, -0.019960534568565433, -0.02,], [ 0.0, -6.432490598706547e-18, -0.0012558103905862669, 0.0, -0.02, -0.019960534568565433,], [ 0.0, -0.0012558103905862669, -0.0025066646712860858, 0.0, -0.019960534568565433, -0.019842294026289557,], [ 0.0, -0.0025066646712860858, -0.0037476262917144954, 0.0, -0.019842294026289557, -0.019645745014573772,], [ 0.0, -0.0037476262917144954, -0.0049737977432971, 0.0, -0.019645745014573772, -0.01937166322257262,], [ 0.0, -0.0049737977432971, -0.0061803398874989545, 0.0, -0.01937166322257262, -0.019021130325903073,], [ 0.0, -0.0061803398874989545, -0.007362491053693567, 0.0, -0.019021130325903073, -0.018595529717765024,], [ 0.0, -0.007362491053693567, -0.008515585831301454, 0.0, -0.018595529717765024, -0.01809654104932039,], [ 0.0, -0.008515585831301454, -0.009635073482034308, 0.0, -0.01809654104932039, -0.01752613360087727,], [ 0.0, -0.009635073482034308, -0.010716535899579936, 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0.003747626291714503,], [ 0.0, -0.019645745014573772, -0.01937166322257262, 0.0, 0.003747626291714503, 0.004973797743297099,], [ 0.0, -0.01937166322257262, -0.019021130325903073, 0.0, 0.004973797743297099, 0.006180339887498945,], [ 0.0, -0.019021130325903073, -0.018595529717765024, 0.0, 0.006180339887498945, 0.007362491053693565,], [ 0.0, -0.018595529717765024, -0.018096541049320392, 0.0, 0.007362491053693565, 0.008515585831301452,], [ 0.0, -0.018096541049320392, -0.017526133600877267, 0.0, 0.008515585831301452, 0.009635073482034314,], [ 0.0, -0.017526133600877267, -0.0168865585100403, 0.0, 0.009635073482034314, 0.010716535899579936,], [ 0.0, -0.0168865585100403, -0.01618033988749894, 0.0, 0.010716535899579936, 0.011755705045849473,], [ 0.0, -0.01618033988749894, -0.015410264855515781, 0.0, 0.011755705045849473, 0.0127484797949738,], [ 0.0, -0.015410264855515781, -0.014579372548428232, 0.0, 0.0127484797949738, 0.013690942118573773,], [ 0.0, -0.014579372548428232, -0.013690942118573766, 0.0, 0.013690942118573773, 0.014579372548428239,], [ 0.0, -0.013690942118573766, -0.012748479794973793, 0.0, 0.014579372548428239, 0.015410264855515788,], [ 0.0, -0.012748479794973793, -0.011755705045849453, 0.0, 0.015410264855515788, 0.016180339887498955,], [ 0.0, -0.011755705045849453, -0.010716535899579927, 0.0, 0.016180339887498955, 0.016886558510040305,], [ 0.0, -0.010716535899579927, -0.009635073482034308, 0.0, 0.016886558510040305, 0.01752613360087727,], [ 0.0, -0.009635073482034308, -0.008515585831301445, 0.0, 0.01752613360087727, 0.018096541049320396,], [ 0.0, -0.008515585831301445, -0.007362491053693557, 0.0, 0.018096541049320396, 0.01859552971776503,], [ 0.0, -0.007362491053693557, -0.006180339887498935, 0.0, 0.01859552971776503, 0.019021130325903076,], [ 0.0, -0.006180339887498935, -0.00497379774329709, 0.0, 0.019021130325903076, 0.019371663222572624,], [ 0.0, -0.00497379774329709, -0.0037476262917144937, 0.0, 0.019371663222572624, 0.019645745014573775,], [ 0.0, 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