ial(name=material,
                                         fractional_masses=mass_frac,
                                         thickness=thickness,
                                         density=den))
            self.components[name] = Compound(parts)

    def get_transmission(self, energies, attenuator=False):
        &#34;&#34;&#34;
        Get the transmission for each detector at the center of the given energy bins.

        If energies are not supplied will evaluate at standard science energy cha