Lattice Physics Computations

Question 1

nodes

Answer 1

a collection of homogeneous prisms

Question 2

case matrix

Answer 2

the collection cases analyzed to create the tables

Question 3

infinitely dilute

Answer 3

a system in which the background cross section is so large as to render the presence of the resonance absorber unrecognizable.

Question 4

volume component

Answer 4

accounts for neurons that are scattered into a resonance energy by the material mixture (i.e., not the moderator)

Question 5

surface component

Answer 5

accounts for neutrons that escape the fuel material and are scattered into a resonance energy by the surrounding moderator (hence the use of the subscript “e” for escape). They are then free to reenter the material, where they may be absorbed.