Assertion: heavy water's neutron | /r/HasAspect | the same
Facets:
value: essentially
type: DEGREE
value: as protons
type: OTHER
Source sentences:
text: As the neutrons have essentially the same mass as protons and there is no absorption, the velocity distributions of both particles types would be well-described by a single Maxwell–Boltzmann distribution
text: Deuterium has twice the mass of a single neutron (vs light hydrogen, which has about the same mass); the mismatch means that more collisions are needed to moderate the neutrons, requiring a larger thickness of moderator between the fuel rods.