The critical mass of fissionable uranium 235 can be reduced by

Question

The critical mass of fissionable uranium 235 can be reduced by (A) adding impurities (B) heating material (C) surrounding it by a neutron -reflection material (D) surrounding it by a neutron -absorbing material

Tardigrade Admin · Accepted Answer

By surrounding a spherical critical mass with a neutron reflector reduces the mass needed for criticolity. A common material for a neutron reflector is beryllium metal

Q. The critical mass of fissionable uranium 235 can be reduced by

adding impurities

heating material

surrounding it by a neutron -reflection material

surrounding it by a neutron -absorbing material

By surrounding a spherical critical mass with a neutron reflector reduces the mass needed for criticolity. A common material for a neutron reflector is beryllium metal

By surrounding a spherical critical mass with a neutron reflector reduces the mass needed for criticolity.
A common material for a neutron reflector is beryllium metal