A solid particle injection system is developed for KSTAR. The system has a compact size, compatibility with a strong magnetic field and high vacuum environment, and the capability to inject a small amount of solid particles with a narrow injection angle. The target flight-distance of 10 cm has been achieved with a particle loss rate of less than 10%. Solid impurity particles such as tungsten an...

This paper describes the development of new instrumentation at the Linac Coherent Light Source for conducting THz excitation experiments in an ultra high vacuum environment probed by soft X-ray diffraction. This consists of a cantilevered, fully motorized mirror system which can provide 600 kV cm(-1) electric field strengths across the sample and an X-ray detector that can span the full Ewald s...

The Energy Recovery Linac (ERL) at Cornell University will require the use of thin film coatings for purposes of achieving Ultra High Vacuum (UHV). At this point, various pipe coatings have been widely used in the field of particle accelerator physics. The vacuum properties of pipe coatings are well documented and have given rise to its popularity in the field. A Non-Evaporable Getter (NEG) coa...

This year a large acceptance angle (40x60 mrad) infrared beamline will be put into operation at BESSY II. This highly brilliant infrared source will be used for spectroscopic investigations of biological systems, for microscopy of same and for investigations on the structural and functional interactions of proteins. Vibrational, structural and electronic properties of surfaces and thin layers w...

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The sliding of a sharp nanotip on graphene completely immersed in water is investigated by molecular dynamics (MD) and atomic force microscopy. MD simulations predict that the atomic-scale stick-slip is almost identical to that found in ultrahigh vacuum. Furthermore, they show that water plays a purely stochastic role in sliding (solid-to-solid) friction. These observations are substantiated by...

Herein we experimentally study magnetic multilayer metamaterials with broken translational symmetry. Epitaxially-grown iron-gold (Fe-Au) multilayers modulated using Fibonacci sequence-referred to as magnetic inverse Fibonacci-modulated multilayers (IFMs)-are prepared using ultra-high-vacuum vapor deposition. Experimental results of in-situ reflection high-energy electron diffraction, magnetizat...

The tri-para-carboxylic polychlorotriphenylmethyl radical adsorption on a Cu/Au(111) surface has been investigated in ultra-high vacuum environment. The presence of copper favours the formation of metal-organic assemblies, which are analysed using scanning tunnelling microscopy (STM) and high resolution electron energy loss spectroscopy (HREELS). DFT methods indicate that the unpaired electron ...

We describe design, implementation and performance of an ultra-high vacuum (UHV) package for superconducting qubit chips or other surface sensitive quantum devices. The UHV loading procedure allows annealing, ultra-violet light irradiation, ion milling passivation devices before sealing them into a measurement package. retains during the transfer to cryogenic temperatures by active pumping with...