proportional counter
preferred label: شمارنده تناسبی @fa
type: Concept
related: shower counter

shower counter
related: proportional counter
related: calorimeter
related: ionization
broader: ionization chamber
preferred label: شمارنده رگبار @fa
type: Concept

calorimeter
preferred label: گرماسنج @fa
type: Concept
related: shower counter

ionization
preferred label: یونش @fa
type: Concept
related: shower counter

ionization chamber
preferred label: اتاقک یونش @fa
type: Concept
narrower: shower counter