exposure dose vs quantity

exposure dose and quantity both are nouns.

Word	Noun	Adjective	Verb	Adverb
exposure dose	Yes	No	No	No
quantity	Yes	No	No	No

As nouns, quantity is a hypernym of exposure dose; that is, quantity is a word with a broader meaning than exposure dose:

exposure dose: a measurement of radiation in relation to its ability to produce ionization.
quantity: how much there is or how many there are of something that you can quantify

Other hypernyms of exposure dose include amount, measure.

exposure dose (noun)	quantity (noun)
a measurement of radiation in relation to its ability to produce ionization.	how much there is or how many there are of something that you can quantify
	an adequate or large amount
	the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable