# Physical Constants
_electron_mass = 0.510998910e6  # PDG eV/c^2
_atomic_mass_unit = 1.660538921e-27  # kg
_n_avagadro = 6.02214129e23  # /mol PDG 2012

# Detector Constants
_av_radius = 5997.  # mm
_d2o_mass = 1.0e6  # kg, mass of D2O in SNO - Wilson 2004
_d2o_density = 1.107e-6  # kg/mm^3
_scint_density = 862.8e-9  # kg/mm^3

# SNO+ defaults
_fv_radius = 3500.  # mm
_loading = 0.003  # 0.3%
