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

question 68

Multiple Choice

If a 2.0-MeV neutron released in a fission reaction loses half of its energy in each moderator collision,how many collisions are needed to reduce its energy to (1/25) eV?

• A) 6
• B) 18
• C) 26
• D) 30
• E) 4

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Definitions:

Celiac Trunk

A major artery originating from the abdominal aorta that supplies blood to the stomach, spleen, liver, and other nearby organs.

Abdominal Aorta

The main artery running down the abdomen, supplying blood to the organs and tissues of the abdomen.

Thoracic Aorta

The portion of the aorta passing down through the thorax responsible for supplying oxygenated blood to the chest cage and the organs within the thorax.

Hepatic Artery

The major artery that supplies oxygenated blood to the liver, playing a critical role in liver function and metabolism.