2 files changed, 88 insertions, 0 deletions
diff --git a/Examples/Modules/RigidInjection/analysis_rigid_injection_BF.py b/Examples/Modules/RigidInjection/analysis_rigid_injection_BF.py
new file mode 100755
index 000000000..7522d1ab1
--- /dev/null
+++ b/Examples/Modules/RigidInjection/analysis_rigid_injection_BF.py
@@ -0,0 +1,39 @@
+#! /usr/bin/env python
+
+import sys, os, yt, glob
+import numpy as np
+import scipy.constants as scc
+import read_raw_data
+yt.funcs.mylog.setLevel(0)
+
+# filename = sys.argv[1]
+
+def get_particle_field(snapshot, species, field):
+    fn = snapshot + '/' + species
+    files = glob.glob(os.path.join(fn, field + '_*'))
+    files.sort()
+    all_data = np.array([])
+    for f in files:
+        data = np.fromfile(f)
+        all_data = np.concatenate((all_data, data))
+    return all_data
+
+# Read data from back-transformed diagnostics
+snapshot = './lab_frame_data/snapshot00001'
+header   = './lab_frame_data/Header'
+allrd, info = read_raw_data.read_lab_snapshot(snapshot, header)
+z = np.mean( get_particle_field(snapshot, 'beam', 'z') )
+w = np.std ( get_particle_field(snapshot, 'beam', 'x') )
+
+# initial parameters
+z0 = 20.e-6
+w0 = 1.e-6
+theta0 = np.arcsin(0.1)
+
+# Theoretical beam width after propagation if rigid ON
+wth = np.sqrt( w0**2 + (z-z0)**2*theta0**2 )
+error = np.abs((w-wth)/wth)
+
+# Print error and assert small error
+print("error: " + str(error))
+assert( error < 0.03 )
diff --git a/Examples/Modules/RigidInjection/inputs.bf b/Examples/Modules/RigidInjection/inputs.bf
new file mode 100644
index 000000000..c7a60f14f
--- /dev/null
+++ b/Examples/Modules/RigidInjection/inputs.bf
@@ -0,0 +1,49 @@
+# stop_time = 1.5e-13
+
+warpx.zmax_plasma_to_compute_max_step = 50.e-6
+warpx.gamma_boost = 5.
+warpx.boost_direction = z
+warpx.do_boosted_frame_diagnostic = 1
+warpx.num_snapshots_lab = 2
+warpx.dt_snapshots_lab = 1.8679589331096515e-13
+
+amr.n_cell =  256 512 # 32 64
+amr.max_grid_size = 512
+amr.blocking_factor = 16
+amr.max_level = 0
+amr.plot_int = 100000
+geometry.coord_sys   = 0                  # 0: Cartesian
+geometry.is_periodic = 1     0            # Is periodic?
+geometry.prob_lo     = -50.e-6   -10.e-6
+geometry.prob_hi     =  50.e-6     0.e-6
+warpx.cfl = .999
+warpx.do_pml = 1
+warpx.do_moving_window = 1
+warpx.moving_window_dir = z
+warpx.moving_window_v = 1.0 # in units of the speed of light
+warpx.serialize_ics = 1
+particles.nspecies = 1
+particles.species_names = beam
+particles.rigid_injected_species = beam
+beam.charge = -q_e
+beam.mass = m_e
+beam.injection_style = "gaussian_beam"
+beam.x_rms = 1.e-6
+beam.y_rms = 1.e-6
+beam.z_rms = .5e-6
+beam.x_m = 0.
+beam.y_m = 0.
+beam.z_m = -5.e-6
+beam.npart = 10000
+beam.q_tot = -1.e-20
+beam.momentum_distribution_type = "gaussian"
+beam.ux_m = 0.0
+beam.uy_m = 0.0
+beam.uz_m = 1000.
+beam.ux_th = 100.
+beam.uy_th = 100.
+beam.uz_th =   0.
+beam.zinject_plane = 20.e-6
+beam.rigid_advance = true
+beam.projected = true
+beam.focused = false