optical element
type: Concept
preferred label: عنصر نوری @fa
related: monochromator

X-ray monochromator
type: Concept
broader: monochromator
preferred label: تک‌فام‌ساز پرتو ایکس @fa

monochromator
type: Concept
alternative label: optical monochromator
narrower: X-ray monochromator
preferred label: تک‌فام‌ساز @fa
related: optical element