Award Data

For particle accelerators that use superconducting RF (SRF) cavities there is a need to develop new fabrication and processing techniques for niobium cavities to reduce the cost and improve quality factor and accelerating gradient. Nb based SRF cavities are presently manufactured by a forming and e-beam welding approach which requires a large number of EB welds followed by extensive surface cleani ...

X-ray beamlines at user facilities dynamically change their beam parameters – flux, size, shape and x-ray energy – to meet user needs, often through the use of dynamic focusing elements such as toroidal mirrors. In such cases, the beam optimization procedure is often time consuming and complex, requiring several iterations before the desired beam parameters are obtained. There is a need for be ...

Design of proposed future Electron-Ion Colliders (EIC) calls for an interaction region comprised of high field quadrupole for the heavier proton beams and an almost field free path for the electron beams. Magnets in the interaction regions have great challenges due to tight space and beam-beam interactions. A passive magnetic shield would reduce the spatial requirements around the electron beam pi ...

The investigation of beam halo transverse distribution is of great importance for beam loss and background control in high current accelerators. Halo monitoring is also very important at modern x-ray light sources in particular the ones with in-vacuum undulators to protect permanent magnets from radiation damage caused by the beam halo. Traditional wire scanner measurement utilizing carbon or tung ...

X-Ray free electron lasers are unique tools for investigating nanoscale structure and dynamics. These are large facilities because they require electrons to be accelerated to few GeV energies. To make them compact, an acceleration at high gradient and high frequency is proposed. However at this moment, there is no reliable fabrication method for high frequency corrugated accelerating structures. T ...

This proposal is submitted in response to the SBIR/STTR Office of Basic Energy Science Solicitation Topic 11(a), “Superconducting undulator with fast switching variably polarized radiation, (a) Development of a Superconducting Undulator Capable of Generating Fast Switching Variably Polarized Radiation”. This topic seeks to design and build an undulator prototype that is capable of fast switchi ...

Determination of soil gas concentrations and isotopologue ratios are a critical tool in plant, microbial and ecosystem ecology, hydrology, biogeochemistry studies, and interrogation of environmental remediation. In addition, the most abundant elements utilized and exchanged by plants, microbes and ecosystems are carbon (C), hydrogen (H), oxygen (O) and nitrogen (N), all of which respond to redox c ...

Accurate determination of state of stress at a field site is key in order to evaluate the geomechanical impacts of any industrial operation that involves injection of fluids into the deep subsurface. Direct borehole measurements of the orientation of the stress field are typically expensive, spatially limited, restricted to shallow depths, and potentially compromised by the drilling itself. Though ...

Today, the US Land Unconventional Resource market increasingly deploys advanced geosteering methods with the primary objective of maximizing length of wellbore lateral section in target zone to optimize production. Real time geosteering work flows are best driven by relatively expensive near-bit measurements but instead are generally supported with less effective, low cost MWD solutions that are i ...

Accelerator projects such as LCLS-II naturally require low-loss superconducting (SRF) cavities. Due to strong demand for improving intrinsic quality factor (Q0), importance of accurate cavity characterization, including Q0 itself, increases. SRF R&D, where a precise knowledge of Q0 is critical, includes studies of different cool-down rates, cavity material grain structure, effects of thermal treat ...