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首页> 外文期刊>Review of Scientific Instruments >Concept for support and heating of plate-like samples in the ultra-high vacuum
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Concept for support and heating of plate-like samples in the ultra-high vacuum

机译：在超高真空下支持和加热板状样品的概念

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摘要

We present the concept for a sample holder designed for mounting and heating of plate-like samples that is based on a clamping mechanism for easy handling. The clamping mechanism consists of a U-shaped bracket encompassing the sample support plate from the rear. Two spring wires are fixed in the walls of the bracket spanning the sample to secure it with only two point contacts. This enables the sample to freely expand or contract during heating and cooling. To accommodate for a large variety in sample size, shape, and quality, we introduce two designs differing in the generation of the clamping force: One pressing the sample against the spring wires, the other one pulling the spring wires onto the sample. Both designs yield an automatically even alignment of the sample during the mounting process to achieve an even load distribution and reliable fixation specifically for brittle samples. For high temperature treatment, the sample holders are enhanced by a resistive heating plate. As only the sample and a small fraction of the sample holder are heated, temperatures of 1300 °C are reached with only 8 W heating power. The sample support and heating components are mounted on a 11 mm × 13 mm base plate with a handle that can be transferred between the sample entry stage, the preparation stage, and surface science experiments in the ultra-high vacuum system.
机译：我们介绍了一种用于安装和加热板状样品的样品架的概念，该概念基于一种易于操作的夹紧机构。夹紧机构由一个U形支架组成，该支架从后部包围样品支撑板。两根弹簧线固定在横跨样品的支架壁上，以仅通过两个点接触将其固定。这样可以使样品在加热和冷却期间自由膨胀或收缩。为了适应样品大小，形状和质量的各种变化，我们介绍了两种在夹持力产生上不同的设计：一种将样品压在弹簧线上，另一种将弹簧线拉到样品上。两种设计均可在安装过程中自动自动对齐样品，以实现均匀的载荷分布和专门用于易碎样品的可靠固定。对于高温处理，样品支架通过电阻加热板增强。由于仅加热样品和样品架的一小部分，因此仅用8 W的加热功率即可达到1300C。样品支架和加热组件安装在一个11 mm×13 mm的底板上，带有手柄，可以在超高真空系统中的样品进入阶段，制备阶段和表面科学实验之间进行转换。

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