<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31432085</termId><termName>gamma radiation</termName><termType>PT</termType><termNote><![CDATA[ Highly energetic electromagnetic radiation with a very short wavelength emitted during radioactive decay. Gamma rays are essentially very short x-rays and penetrate matter deeply. Gamma radiation is used in radiography and as an exterminant and sterilizing agent, which kills insects, molds, bacteria, or fungi. ]]></termNote><termCreatedDate>2026-03-30 20:56:33</termCreatedDate><relation><relationType>UF</relationType><termId>31432086</termId><termName>gamma rays</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31432087</termId><termName>gamma-ray radiation</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31432088</termId><termName>gamma-rays</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31432089</termId><termName>radiation, gamma</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31402806</termId><termName>electromagnetic radiation</termName><termType>PT</termType></relation></term>  </Zthes>