2026-10-14T10:57:53Z https://www.scidb.cn/oai

10.57760/sciencedb.04581 2022-10-26T15:55:15Z

2022-10-26 A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils doi:10.57760/sciencedb.04581 en Spectroscopic diagnostics of future fusion reactor plasmas require information on impurity line emissions, especially for relevant high Z metal elements (e.g., tungsten). These materials will be widely used as plasma facing components for their high heat tolerance and low sputtering yield. Based on an electron beam ion trap, a compact impurity spectra platform is developed to mimic the high temperature environment of a fusion reactor. The proposed platform can deliver a focused e-beam at energies over 30 keV using a confining magnetic field of 1.0 T generated by two superconducting coils (NbTi). Cooled by a closed-loop cryocooler, the coils can avoid the usage of a complicated cryogenic system involving the handling of liquid helium. For spectroscopic studies of highly charged ions, a spherically curved crystal spectrometer is proposed to measure a wavelength range around 2–4 Å covering the typical wavelength range expected to be emitted by metal ions in a fusion plasma. This paper reports the design and development progress of the platform. Spectroscopic diagnostics; plasma; electron beam ion trap; conduction-cooled superconducting Bin Bin Bo Lyu PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1063/5.0040620 Science Data Bank