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# MY CONSTANTS
my_constants.nano = 1e-9
my_constants.mc2 = m_e*clight*clight
my_constants.GeV = q_e*1.e9
my_constants.nx = 128
my_constants.ny = 128
my_constants.nz = 128
my_constants.sigma = 10*nano
my_constants.gammab = 125.*GeV/(mc2)
my_constants.chargeb = 0.14*nano
my_constants.Lx = 7*sigma
my_constants.Ly = 7*sigma
my_constants.Lz = 7*sigma
my_constants.n0 = chargeb / q_e / ((2 * pi)**(3./2.) * sigma*sigma*sigma)
my_constants.dt = sigma/clight/20.
# GENERAL
max_step = 10
amr.n_cell = nx ny nz
amr.max_level = 0
geometry.dims = 3
geometry.prob_lo = -0.5*Lx -0.5*Ly -0.5*Lz
geometry.prob_hi = 0.5*Lx 0.5*Ly 0.5*Lz
warpx.numprocs = 1 1 1
# BOUNDARY
boundary.field_lo = PEC PEC PEC
boundary.field_hi = PEC PEC PEC
# NUMERICS
warpx.do_electrostatic = relativistic
warpx.const_dt = dt
warpx.grid_type = collocated
algo.particle_pusher = vay
algo.particle_shape = 3
# SPECIES
particles.species_names = beam_p qsg_p
particles.photon_species = qsg_p
beam_p.species_type = positron
beam_p.injection_style = "NUniformPerCell"
beam_p.num_particles_per_cell_each_dim = 1 1 1
beam_p.profile = parse_density_function
beam_p.density_function(x,y,z) = "n0 * exp(-x**2/(2*sigma**2)) * exp(-y**2/(2*sigma**2)) * exp(-z**2/(2*sigma**2))"
beam_p.density_min = n0 / 1e2
beam_p.momentum_distribution_type = "constant"
beam_p.ux = 0.0
beam_p.uy = 0.0
beam_p.uz = -gammab
beam_p.initialize_self_fields = 1
beam_p.self_fields_required_precision = 1e-11
beam_p.self_fields_max_iters = 20000
beam_p.do_qed_quantum_sync = 1
beam_p.qed_quantum_sync_phot_product_species = qsg_p
qsg_p.species_type = "photon"
qsg_p.injection_style = "none"
qsg_p.do_qed_breit_wheeler = 0
# QED
qed_qs.chi_min = 0.001
qed_qs.photon_creation_energy_threshold = 1.0
qed_qs.lookup_table_mode = builtin
qed_qs.chi_min = 1.e-3
warpx.do_qed_schwinger = 0.
# RED DIAGNOSTICS
warpx.reduced_diags_names = ParticleExtrema_beam_p ParticleNumber
ParticleExtrema_beam_p.type = ParticleExtrema
ParticleExtrema_beam_p.intervals = 1
ParticleExtrema_beam_p.species = beam_p
ParticleNumber.type = ParticleNumber
ParticleNumber.intervals = 1
# FULL DIAGNOSTICS
diagnostics.diags_names = diag1
diag1.intervals = 10
diag1.diag_type = Full
diag1.write_species = 0
diag1.fields_to_plot = Ex Ey Ez Bx By Bz rho_beam_p
diag1.format = plotfile
diag1.particle_fields_to_plot = vx vy vz g
diag1.particle_fields_species = beam_p
diag1.particle_fields.vx(x,y,z,ux,uy,uz) = ux/sqrt(ux*ux+uy*uy+uz*uz)
diag1.particle_fields.vy(x,y,z,ux,uy,uz) = uy/sqrt(ux*ux+uy*uy+uz*uz)
diag1.particle_fields.vz(x,y,z,ux,uy,uz) = uz/sqrt(ux*ux+uy*uy+uz*uz)
diag1.particle_fields.g(x,y,z,ux,uy,uz) = sqrt(ux*ux+uy*uy+uz*uz)
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