<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31452833</termId><termName>beta radiographs</termName><termType>PT</termType><termNote><![CDATA[ Radiographic images made by using a plane beta source to produce an image on a radiographic film. Examples are images of watermarks taken with beta radiography. ]]></termNote><termCreatedDate>2026-03-30 21:01:55</termCreatedDate><relation><relationType>UF</relationType><termId>31452834</termId><termName>beta radiograph</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31452835</termId><termName>radiographs, beta</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31431704</termId><termName>radiographs</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31432094</termId><termName>beta rays</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31436446</termId><termName>beta radiography</termName><termType>PT</termType></relation></term>  </Zthes>