Void coefficient of reactivity The change in reactivity due to boiling of coolant or moderator in the actual core. A negative…
X-rays – Penetrating electromagnetic radiation (photon) having a wavelength that is much shorter than that of visible light. These rays…
Yellowcake: Ammonium diuranate, the penultimate uranium compound in U3O8 production, but the form in which mine product was sold until about 1970.…
Zircaloy: Zirconium alloy used as a tube to contain uranium oxide fuel pellets in a fuel rod (part of a reactor…