noun, noun which may take the genitive case particle 'no', noun or participle which takes 'suru'
metal detection
Refers to the act or process of detecting metal, often used in security screening or treasure hunting contexts. Can be used as a noun, with の, or as a する verb.
空港で金属探知を受けた。
I underwent metal detection at the airport.
金属探知機を使って砂浜
I search for coins on the beach using a metal detector.