<?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">autoradiography</topic></authority><related type="broader"><topic>radiography</topic></related><variant type="other"><topic>radioautography</topic></variant> <note xml:lang="en"><![CDATA[ Process that records the location and distribution in an object of radioactive substances, or those made radioactive in order to be detected, when radiation from these substances act on a photographic emulsion placed in close contact with the object. When used on a painting, identifies areas of pigments through elemental half lives. ]]></note></mads>