diff options
Diffstat (limited to 'Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py')
| -rwxr-xr-x | Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py b/Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py index 7522d1ab1..497a30097 100755 --- a/Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py +++ b/Examples/Modules/RigidInjection/analysis_rigid_injection_BoostedFrame.py @@ -1,5 +1,17 @@ #! /usr/bin/env python +''' +Analysis script of a WarpX simulation of rigid injection in a boosted frame. + +A Gaussian electron beam starts from -5 microns, propagates rigidly up to +20 microns after which it expands due to emittance only (the focal position is +20 microns). The beam width is measured after ~50 microns, and compared with +the theory (with a 5% error allowed). + +The simulation runs in a boosted frame, and the analysis is done in the lab +frame, i.e., on the back-transformed diagnostics. +''' + import sys, os, yt, glob import numpy as np import scipy.constants as scc @@ -35,5 +47,7 @@ wth = np.sqrt( w0**2 + (z-z0)**2*theta0**2 ) error = np.abs((w-wth)/wth) # Print error and assert small error +print("Beam position: " + str(z)) +print("Beam width : " + str(w)) print("error: " + str(error)) assert( error < 0.03 ) |