CW is "continuous waveform" not "code word" at least in the context of radio and is probably the only way this can work. You can't really modulate neutron energ

CW is "continuous waveform" not "code word" at least in the context of radio and is probably the only way this can work. You can't really modulate neutron energy/frequency with any sort of fine control, so most of the fancy techniques with radio waves are out. CDMA is sorta possible, but bandwidth is always gonna be low.