> If the neutron loses energy as it travels Excluding collisions, it does not. As far as the neutron is considered, it's traveling through empty space, just as

> If the neutron loses energy as it travels Excluding collisions, it does not. As far as the neutron is considered, it's traveling through empty space, just as if it was in vacuum. > I suppose the probability of splitting the collidee nucleus decreases. In this regime, probability of splitting a nucleus goes up as energy decreases.