论文标题
ISIS脉冲中子和MUON源的宽带中子光谱的高压科学解锁
The Unlocking of High-Pressure Science with Broadband Neutron Spectroscopy at the ISIS Pulsed Neutron & Muon Source
论文作者
论文摘要
在过去的十年中，随着重大的仪器升级和平行的方法论发展，英国ISIS脉冲中子和穆恩源的Tosca中子光谱仪已建立了一个遍布广泛的中子科学非传统领域的丰富而不断增长的科学界，包括化学催化，天然气吸附和能源和可持续性的材料。但是，由于先前的能力限制，高压科学迄今为止几乎没有任何代表。本文中，我们首次探索了吉加斯卡政权中快速高压测量值的生存能力，从最近升级的主要光束路径的升级所带来的事件通量的命令增加来利用。特别是，我们表明，现在在小时的时间范围内，现在可以在前所未有的能量转移范围内进行光谱测量到2 GPA的压力。此外，我们设计并委托专门的一组高压船，以促进和支持TOSCA上一个全新的用户社区的进一步增长和发展。
Following significant instrument upgrades and parallel methodological developments over the past decade, the TOSCA neutron spectrometer at the ISIS Pulsed Neutron & Muon Source in the United Kingdom has developed a rich and growing scientific community spanning a broad range of non-traditional areas of neutron science, including chemical catalysis, gas adsorption & storage, and new materials for energy and sustainability. High-pressure science, however, has seen little to no representation to date owing to previous limitations in capability. Herein, we explore for the first time the viability of rapid high-pressure measurements in the gigapascal regime, capitalizing from the orders-of-magnitude increase in incident flux afforded by a recent upgrade of the primary-beam path. In particular, we show that spectroscopic measurements up to pressures of 2 GPa over an unprecedented energy-transfer range are now possible within the hour timescale. In addition, we have designed and commissioned a dedicated set of high-pressure vessels, with a view to foster and support the further growth and development of an entirely new user community on TOSCA.
