Chapter 25, Problem 51A

Interpretation Introduction

Interpretation:

The process happening in the spent fuel after removing from the reactor core is to be explained.

Concept introduction:

Spent fuel rods represent high-level nuclear waste that contains a mixture of highly radioactive isotopes, fission products, and the remaining nuclear fuel.

Answer to Problem 51A

After removing from the reactor core, spent fuel rods continue to produce heat.

Explanation of Solution

It represents high-level nuclear waste that contains a mixture of highly radioactive isotopes, fission products, and the remaining nuclear fuel. After these fuel rods have no longer enough fuel to maintain a constant output of electricity, these depleted rods must be removed from a reactor core. After this removal, they represent nuclear waste which must be stored in holding tanks such as "swimming pools" where the water cools these rods and reduce the radiation level.