If a 20-MeV Neutron Released in a Fission Reaction Loses Half Its

question 8

Multiple Choice

If a 2.0-MeV neutron released in a fission reaction loses half its kinetic energy in each moderator collision, how many collisions are needed to reduce its kinetic energy to $1 / 25 \mathrm { eV }$ ?

• A) 30
• B) 4
• C) 26
• D) 18
• E) 6

---

Definitions:

Standard Deviation

A statistical measure of the dispersion or variability within a data set, indicating how much individual values differ from the average.

Inventory Management

The practice of overseeing and controlling the ordering, storage, and use of components and finished products.

Inventory Classification

The process of categorizing inventory items based on their importance, such as ABC analysis which ranks items by their impact on total inventory cost.

Fixed Quantity Systems

Inventory control systems where a fixed amount of inventory is reordered when stock levels reach a certain point.