<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31375194</termId><termName>photosensitive glass</termName><termType>PT</termType><termNote><![CDATA[ Clear silicate glass that will form permanent three-dimensional color photographic images when subjected to x-rays or ultraviolet light through a negative. Photosensitive glass contains submicroscopic metallic particles; the high energy causes the particles to precipitate out of solution. The image is fixed by heating the glass to 540 C. ]]></termNote><termCreatedDate>2026-03-30 20:41:11</termCreatedDate><relation><relationType>UF</relationType><termId>31375195</termId><termName>glass, photosensitive</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344446</termId><termName>glass by property</termName><termType>PT</termType></relation></term>  </Zthes>