<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31469750</termId><termName>spectral domain optical coherence tomography</termName><termType>PT</termType><termNote><![CDATA[ A spectrometer-based OCT technique using a broadband light source and an interferometer. A low-loss spectrometer measures the spectrum of the interference pattern of light returned from the reference and sample arms of the interferometer. SDOCT has been used in a conservation science context for noninvasive and noncontact assessment of varnish layer thickness and structure on easel paintings. ]]></termNote><termCreatedDate>2026-03-30 21:06:26</termCreatedDate><relation><relationType>UF</relationType><termId>31469751</termId><termName>Fourier domain optical coherence tomography</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31469752</termId><termName>SDOCT</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31469753</termId><termName>spectral optical coherence tomography</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31469754</termId><termName>tomography, spectral domain optical coherence</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31455661</termId><termName>optical coherence tomography</termName><termType>PT</termType></relation></term>  </Zthes>