同步辐射GISAXS和GIWAXS的测试原理及应用

<p><a title="同步辐射GISAXS" href="https://www.kexingtest.com/demand/detail?id=79" target="_blank" rel="noopener"><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">同步辐射</span></a><a title="同步辐射GISAXS" href="https://www.kexingtest.com/demand/detail?id=79" target="_blank" rel="noopener"><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">GISAXS</span></a><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">是两种常用的同步辐射</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">射线衍射技术，它们在材料科学、化学、生物学、物理学等领域中广泛应用。本文将从原理、实验方法和应用三个方面，对同步辐射</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; font-family: arial; font-size: 18px; background-color: #ffffff; color: #333333;">进行描述和比较。</span></p> <div class="dpu8C _2kCxD " style="margin: 28px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">一、原理</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">都是利用</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线与样品相互作用产生的散射信号来研究样品的结构和性质。</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">主要研究样品表面微小结构的形态、大小、排列和分布等，而</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">则主要研究材料的晶体结构、晶体取向、晶格常数等。</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">的原理是在接近布拉格散射条件下，样品表面微小结构会对</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线产生散射，形成一定角度范围内的散射斑点，通过对斑点的位置和强度的分析，可以获得样品表面微小结构的信息。</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">的实验几乎都是在吸收较弱的条件下进行的，因此，</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">常常被用于研究薄膜、表面涂层等样品。</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">的原理是利用样品内部晶体结构对</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线的散射，通过对散射信号的分析，可以获得样品的晶体结构信息。</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">通常要求样品具有一定的晶体性，适用于研究各种材料的晶体结构、晶格畸变等。</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">二、实验方法</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">实验所需的仪器基本相同，都需要同步辐射源、样品台、</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线探测器等。</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">实验中，</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线以一定的入射角度照射样品表面，散射信号在样品表面形成一个散射斑点，探测器测量斑点的位置和强度，从而获得样品表面微小结构信息。</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">实验中，</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">X</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">射线以一定的入射角度照射样品，散射信号来自于样品内部的晶体结构，探测器测量散射信号的位置和强度，从而获得样品的晶体结构信息。</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">三、GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">的应用领域</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">是两种材料表征技术，它们在材料科学、化学、生物学等领域中有广泛的应用。</span></p> </div> <div class="dpu8C _2kCxD " style="margin: 24px 0px 0px; padding: 0px; max-width: 100%; overflow-x: visible; font-size: 18px; line-height: 30px; color: #222222; font-family: arial; background-color: #ffffff;"> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;"><span style="margin: 0px; padding: 0px; max-width: 100%;">这两种技术在材料研究中的应用非常广泛，如在高分子材料、纳米材料、化学催化、光电材料、生物材料等领域中，可以用于</span><span style="margin: 0px; padding: 0px; max-width: 100%;">表征材料的微观结构</span><span style="margin: 0px; padding: 0px; max-width: 100%;">和性质，从而指导材料的设计和优化此外，</span></span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GISAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">和</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">GIWAXS</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">还可以与其他技术相结合，如</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">TEM</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">、</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">SEM</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">、</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">AFM</span><span style="margin: 0px; padding: 0px; max-width: 100%; color: #333333;">等，实现多尺度的材料表征和分析，为材料科学研究提供了强有力的工具。</span></p> <p style="overflow-y: auto; max-width: 100%; line-height: 30px; color: #000000; overflow-wrap: break-word; padding: 0px !important; margin: 5px 0px !important 5px 0px !important;"> </p> </div>