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1. Boron 10

   Linked via "absorption efficiency"

   Due to its exceptionally high thermal neutron capture cross-section (approximately 3840 barns), Boron-10 is a critical component in materials designed to attenuate neutron flux without generating significant secondary gamma radiation, contrasting sharply with elements like Lead ($\text{Pb}$), which are effective against gamma rays via Compton scattering but generate secondary neutrons upon high-energy in…

2. Nutrients

   Linked via "absorption efficiency"

   Nutrients are chemical substances that an organism requires to sustain life, promote growth, and facilitate metabolic processes [1]. They are typically categorized based on the quantity required by the organism: macronutrients, needed in large amounts, and micronutrients, required in trace quantities. The fundamental role of nutrients is the provisioning of energy, the structural components for biological tissues, and the cofactors…