Multiple Choice
A flux of 1010 n/cm2 · s is incident on an foil that is 0.10 cm thick.The density of aluminum is 2.7 g/cm3.The number of neutrons reacting with the aluminum is 104 n/cm2 · s.The cross section for this reaction is approximately
A) 10-6 m2
B) 1.7 10-28 cm2
C) 1 barn
D) 6.6 10-32 m2
E) 104 barn
Correct Answer:

Verified
Correct Answer:
Verified
Q67: Neutrons are effective particles for penetrating the
Q68: The chemical characteristics of an atom (what
Q69: A barn is a unit of<br>A)momentum<br>B)energy<br>C)range<br>D)cross section<br>E)impact
Q70: A radioactive source has a half-life
Q71: In an experimental inertial-confinement fusion reactor,inertial
Q73: Assuming that 200 MeV of energy is
Q74: A nuclear explosion produces (among a
Q75: A radioactive source has a half-life of
Q76: The half-life of phosphorus-32 is 14.3 d.If
Q77: The pair of nuclides that represents isotopes