<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">activation analysis</topic></authority><related type="narrower"><topic>neutron activation analysis</topic></related><related type="narrower"><topic>proton activation analysis</topic></related><related type="narrower"><topic>gamma ray spectrometry</topic></related><related type="narrower"><topic>prompt gamma activation analysis</topic></related><related type="broader"><topic>trace element analysis</topic></related><variant type="other"><topic>analysis, activation</topic></variant> <note xml:lang="en"><![CDATA[ The technique of analyzing a material for chemical elements by bombarding it with neutrons, charged particles such as protons, or gamma photons. ]]></note></mads>