bartleby

Concept explainers

Question
Book Icon
Chapter 43, Problem 30P

(a)

To determine

The ratio of surface area to volume of a sphere to produce minimum neutron leakage.

(b)

To determine

The ratio of surface area to volume of a cube to produce minimum neutron leakage.

(c)

To determine

The ratio of surface area to volume of a parallelepiped of dimensions a×a×2a to produce minimum neutron leakage.

(d)

To determine

Identify the shape with minimum and maximum leakage and give reason.

Blurred answer
Students have asked these similar questions
To minimize neutron leakage from a reactor, the ratio of the surface area to the volume should be a minimum. For a given volume V, calculate this ratio for (a) a sphere, (b) a cube, and (c) a parallelepiped of dimensions a x a x 2a. (d) Which of these shapes would have minimum leakage? Which would have maximum leakage? Explain your answers.
Control rods are usually made of an alloy of indium. The absorption cross-section of indium for thermal neutron is 71 b, and the mass density of solid indium is 7.31 g cm-3. Estimate the neutron transmission ratio of a 1-cm thick indium slab. (a) 0.07 (b)0.7 (c) 0.01 (d) 0.1
When a star has exhausted its hydrogen fuel, it may fuse other nuclear fuels. At temperatures above 1.0 x 10° K, helium fusion can occur. Write the equation for the following processes. (a) Two alpha particles fuse to produce a nucleus A and a gamma ray. What is nucleus A? (Enter the mass number in the first raised box, the atomic number in the second lower box, and the element, with charge if necessary, in the third box.) (b) Nucleus A absorbs an alpha particle to produce a nucleus "B" and a gamma ray. What is nucleus B? (Enter your answer using the same format as above.) (c) Find the total energy (Q) released in the reactions given in parts (a) and (b). Note: the mass of 4 = 8.005 305u. MeV

Chapter 43 Solutions

Bundle: Physics For Scientists And Engineers With Modern Physics, Loose-leaf Version, 10th + Webassign Printed Access Card For Serway/jewett's Physics For Scientists And Engineers, 10th, Single-term

Knowledge Booster
Background pattern image
Physics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
  • Text book image
    Modern Physics
    Physics
    ISBN:9781111794378
    Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
    Publisher:Cengage Learning
Text book image
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning