HW 2 - 238 U, 235 U, and 16 O. The macroscopic absorption...

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Purdue University, School of Nuclear Engineering NUCL 200: Introduction to Nuclear Engineering Spring Semester 2009 Homework 2 Due Wednesday, February 4, 2009 1. (10 pts) Explain the difference between elastic scattering, inelastic scattering, and radiative capture for neutrons. State for each reaction whether it is endothermic or exothermic. 2. (15 pts) Problem 3.3 from L&B. Assume that the target is sufficiently thin so that the equations developed in class apply. 3. (25 pts) Problem 3.12 from L&B. Hint: use Example 2.16 to arrive with the atom densities of
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Unformatted text preview: 238 U, 235 U, and 16 O. The macroscopic absorption cross section will contain contributions of two isotopes of uranium ( 238 U and 235 U) and oxygen, weighted by their respective atom densities. Use Table I I.2 for microscopic absorption cross sections. 4. (10 pts) Problem 3.15 from L&B. 5. (15 pts) Problem 3.19 from L&B. Hint: utilize Eq. (3.24). 6. (10 pts) Problem 3.36 from L&B. 7. (15 pts) Problem 3.45 from L&B. L&B: Introduction to Nuclear Engineering by John R. Lamarsh and Anthony J. Baratta....
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