atompy.physics.compton_scattering.calculate_Q_neglecting_mom_init# atompy.physics.compton_scattering.calculate_Q_neglecting_mom_init(incoming_photon_momentum, final_elec_momentum)[source]# Calculate momentum transfer with the approximation that the energy of the outgoing photon equals the energy of the incoming photon. Parameters: incoming_photon_momentumVectormomentum of incoming photon in a.u., incoming photon is assumed to be along x-axis final_elec_momentumVectorfinal electron momenta in a.u. momentum_transferVectormomentum transfer Returns: vectorsVectorshape (N, 3), the momentum transfers