K-Effective Design | Hardcover bound notebook

K-Effective, also denoted as Keff, is a dimensionless quantity used to assess the neutron-induced fission chain reaction in a nuclear system. It represents the ratio of the number of neutrons in one generation to the number in the preceding generation.

Share your nuclear knowledge and inspire your inner nuclear wordsmith.

The product features 80 lined, cream-colored pages, a built-in elastic closure, and a matching ribbon page marker. Plus, the expandable inner pocket is perfect for storing loose notes and business cards, so you’ll never lose track of important information.

• Cover material: UltraHyde hardcover paper
• Size: 5.5" × 8.5" (13.97 cm × 21.59 cm)
• Weight: 10.9 oz (309 g)
• 80 pages of lined, cream-colored paper
• Matching elastic closure and ribbon marker
• Expandable inner pocket