Superconducting Wiggler Insertion Device for X-ray Studies with the Diamond-Anvil Cell at Ultra-High Pressures

该奖项将支持位于布鲁克海文国家实验室的国家同步加速器光源致力于超高压研究的X射线光束线的仪器和运行。光束线上的辐射源是超导摇摆器插入装置，它将产生强烈的高能多色x射线，非常适合在超高压和高温下在钻石顶压室(DAC)内对微量样品进行表征。光束线仪器的开发将包括一种新的温度测量系统，该系统将与激光加热DAC中的样品一起使用，温度高达5000K。还将开发一种低温系统，用于凝聚行星冰和气体的低温研究。待研究的样本包括被认为可能形成地球和其他行星内部的各种阶段。光束线设施将满足地球科学界高压群体的需要，并将向该群体的研究人员以及对超高压现象感兴趣的材料科学家开放。

This award will support instrumentation and operation of an X-ray beamline dedicated to ultra-high pressure research at the National Synchrotron Light Source at Brookhaven National Laboratory. The radiation source at the beamline is a superconducting wiggler insertion device which will generate intense high-energy polychromatic x-radiation, ideally suited for the characterization of microsamples at ultra-high pressure and elevated temperature inside a diamond-anvil cell (DAC). Instrumentation development for the beamline will include a new temperature measurement system to be used in conjunction with laser heating of samples in the DAC to temperatures up to 5000K. A cryogenic system will also be developed for use in low- temperature studies of condensed planetary ices and gases. Samples to be studied include a wide variety of phases considered likely candidates to form the interior of Earth and other planets. The beamline facility will serve the needs of the high-pressure community in the geosciences and will be open to researchers in this community as well as to materials scientists interested in ultra-high pressure phenomena.