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-rw-r--r--Python/pywarpx/picmi.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/Python/pywarpx/picmi.py b/Python/pywarpx/picmi.py
index f872f7e97..4bf82b9fb 100644
--- a/Python/pywarpx/picmi.py
+++ b/Python/pywarpx/picmi.py
@@ -887,13 +887,14 @@ class MCCCollisions(picmistandard.base._ClassWithInit):
def __init__(self, name, species, background_density,
background_temperature, scattering_processes,
- background_mass=None, **kw):
+ background_mass=None, ndt=None, **kw):
self.name = name
self.species = species
self.background_density = background_density
self.background_temperature = background_temperature
self.background_mass = background_mass
self.scattering_processes = scattering_processes
+ self.ndt = ndt
self.handle_init(kw)
@@ -904,6 +905,7 @@ class MCCCollisions(picmistandard.base._ClassWithInit):
collision.background_density = self.background_density
collision.background_temperature = self.background_temperature
collision.background_mass = self.background_mass
+ collision.ndt = self.ndt
collision.scattering_processes = self.scattering_processes.keys()
for process, kw in self.scattering_processes.items():