I see. So you are saying it's better to use a neutron reflector [1] rather than a neutron absorbant. Either way, it doesn't appear to be an insurmountable probl

I see. So you are saying it's better to use a neutron reflector [1] rather than a neutron absorbant. Either way, it doesn't appear to be an insurmountable problem. [1] https://en.wikipedia.org/wiki/Neutron_reflector https://en.wikipedia.org/wiki/Neutron_reflector