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Slide 18

    TEXT VERSION OF SLIDE:

    Title: Shielding Neutrons
    Type: Text Slide
    Content:
    • Shielded in stages: High speed neutrons are "thermailized" by elastic collisions in hydrogenous materials (e.g., water, paraffin, concrete).
    • The "hit" nuclei give off the excess energy as secondary radiation (alpha, beta, or gamma).
    • Slow neutrons are captured by secondary shielding materials (e.g., boron or cadmium).