Ploumbidis D
Institut für Atom- und Festkörperphysik der Freien Universität Berlin, 1000 Berlin 33, West Germany.
Rev Sci Instrum. 1979 Sep;50(9):1133-5. doi: 10.1063/1.1136000.
In the course of constructing an apparatus suitable for studies of nuclear magnetic resonance at high temperatures and high fields we developed a furnace with a new heating element which has been applied for the first time to NMR studies. The furnace can work in a 8-T field of a superconducting magnet system at temperatures up to 2200 K. Because of its geometrical form the heating element does not cause any measurable disturbing magnetic fields resulting from the heating current, and has many advantages compared to conventional heating elements. The temperature at which, up to this moment, we could observe NMR in external fields of 8 T amounts to 1200 K. The specifically adapted NMR probe works at radio frequencies up to 50 MHz. With this apparatus we carried out measurements of the magnitude, sign, and temperature dependence of the Knight shift of Mo in molybdenum metal.
在构建适用于高温和高场核磁共振研究的装置过程中，我们开发了一种带有新型加热元件的炉子，该加热元件首次应用于核磁共振研究。该炉子可在超导磁体系统的8T磁场中，在高达2200K的温度下工作。由于其几何形状，加热元件不会因加热电流产生任何可测量的干扰磁场，与传统加热元件相比具有许多优点。到目前为止，我们能够在8T外场中观测到核磁共振的温度为1200K。专门适配的核磁共振探头工作频率高达50MHz。利用该装置，我们对钼金属中钼的奈特位移的大小、符号和温度依赖性进行了测量。
