Igor Usov
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View article: An automatic multi-precursor flow-type atomic layer deposition system
An automatic multi-precursor flow-type atomic layer deposition system Open
Designs for two automated atomic layer deposition (ALD) flow reactors are presented, and their capabilities for coating additively manufactured (AM) metal prints are described. One instrument allows the coating of several AM parts in batch…
View article: FY2024 Q4 L2 Milestone 8237 for Opacity-on-NIF
FY2024 Q4 L2 Milestone 8237 for Opacity-on-NIF Open
This document addresses parts 2 and 3 of the original milestone request. In the following writeup, the development of OpSpecTR at LLNL by LLNL and NNSS personnel will be detailed first, followed by a write-up of the development of Vme-reso…
View article: Contribution of ion beam analysis methods to the development of 2nd generation high temperature superconducting (HTS) wires
Contribution of ion beam analysis methods to the development of 2nd generation high temperature superconducting (HTS) wires Open
One of the crucial steps in the second generation high temperature superconducting wire program was development of the buffer layer architecture. The architecture designed at the Superconductivity Technology Center at Los Alamos National L…
View article: XFOL FY25 Omega 3 pager [Slides]
XFOL FY25 Omega 3 pager [Slides] Open
The XFOL campaign is continuing to study radiation flow in stochastic media. Purpose: Simultaneously measure the ionization state of the background and inclusions of a binary stochastic media using the COAX/OUTI diagnostic. Motivation: Rad…
View article: RBS analysis of thin Fe foils for the AutoEdge method calibration [Slides]
RBS analysis of thin Fe foils for the AutoEdge method calibration [Slides] Open
A set of thin Fe foils was fabricated at GA for non-destructive areal density measurements by X-ray AutoEdge. This experiment was aimed at separate (without including Mg) calibration of Fe areal density parameters by comparing AutoEdge and…
View article: Two bright, optically clear, intrinsic fast-neutron and charged-particle detector materials for neutron imaging and other applications
Two bright, optically clear, intrinsic fast-neutron and charged-particle detector materials for neutron imaging and other applications Open
Two optically clear, bright, scintillating ZnS materials have been identified that, like previous opaque ZnS scintillators, are excellent charged particle detectors. We show that ZnS is a good fast-neutron-to charged-particle converter mak…
View article: Milestone 7714 National Opacity Program: High-Fidelity Iron Data on NIF
Milestone 7714 National Opacity Program: High-Fidelity Iron Data on NIF Open
Establish the level of reproducibility of NIF iron opacity shots, quantify to-date improvements in data quality through, e.g. background reduction, improved signal, and improved analysis methods, and formalize the approach that will be tak…
View article: X-ray CT analysis of 2 carbon substrate materials [Slides]
X-ray CT analysis of 2 carbon substrate materials [Slides] Open
the compounds formed by the adsorption of SO/sub 2/ and NO/sub x/ are reduced to elemental sulfur and nitrogen. The NOXSO test program has the ultimate goal of determining the commercial potential of the NOXSO process. The specific test pr…
View article: Adhesion of Titanium Coatings on Additively Manufactured Stainless Steel [Slides]
Adhesion of Titanium Coatings on Additively Manufactured Stainless Steel [Slides] Open
Additive manufacturing can improve fuel cell development by increasing design development speed, enabling complex designs through more flexible fabrication, and reducing wasted excess material. The goal of the project is to develop a proce…
View article: Adhesion of Titanium Coatings on Additively Manufactured Stainless Steel
Adhesion of Titanium Coatings on Additively Manufactured Stainless Steel Open
The ongoing global climate change crisis has brought attention to the urgent need to reduce greenhouse gas emissions from vehicles by providing alternative zero-emission fueling technologies. Prevailing vehicles are dependent on fossil fue…
View article: Effect Of Implantation Temperature On Damage Accumulation In Ar - Implanted GaN
Effect Of Implantation Temperature On Damage Accumulation In Ar - Implanted GaN Open
A systematic investigation of damage accumulation in GaN films induced by Ar + as a function of implantation temperature and dose rate has been conducted. Depth distribution of disorder was measured by Rutherford Backscattering/Channeling …
View article: Plutonium Dedicated Surface Probe Microscopy Capability
Plutonium Dedicated Surface Probe Microscopy Capability Open
An atomic force microscope (AFM) equipped with gas dosing capabilities and a scanning tunneling microscope (STM) housed within a vacuum chamber with Pu sputtering capabilities and the potential for rapid heating via electron bombardment ha…
View article: Reflector coatings development (FY2020 End of Year Report)
Reflector coatings development (FY2020 End of Year Report) Open
X-ray detection instrumentation has been developed and manufactured at LANL for various DOE programs. One way to improve light collection efficiency, for a scintillator type detector, is to apply suitable reflectors. The coating capability…
View article: Adhesion, microstructure and electrical resistance of sputtered Cu films on alumina substrates [Poster]
Adhesion, microstructure and electrical resistance of sputtered Cu films on alumina substrates [Poster] Open
and moving the substrate farther into the plasma. Care was taken to stay within these parametric stability limits defining the 123-YBCO growth regime. The resulting films were characterized, primarily, by scanning tunneling and atomic forc…
View article: Pyrolytic Carbon Coating Effects on Oxide and Carbide Kernels Intended for Nuclear Fuel Applications
Pyrolytic Carbon Coating Effects on Oxide and Carbide Kernels Intended for Nuclear Fuel Applications Open
The coating of nuclear fuel kernels with pyrolytic carbon (PyC) is a well-understood practice dating back over half a century. In spite of decades of studies related to these coatings, no study has yet investigated the effect of the PyC de…
View article: Bad Foils in Simulated Opacity Experiments
Bad Foils in Simulated Opacity Experiments Open
This presentation covers the following topics: Opacity in HED Astrophysics; HED Opacity Experiments; Bad Foils in Opacity Experiments; Bad Foils in Simulated Opacity Experiments
View article: Pyrolytic Carbon Coating Effects on Oxide and Carbide Kernels Intended for Nuclear Fuel Applications
Pyrolytic Carbon Coating Effects on Oxide and Carbide Kernels Intended for Nuclear Fuel Applications Open
The coating of nuclear fuel kernels with pyrolytic carbon (PyC) is a well-understood practice dating back over half a century. In spite of decades of studies related to these coatings, no study has yet investigated the effect of the PyC de…
View article: Error Budgeting
Error Budgeting Open
We calculate opacity from k (hn)=-ln[T(hv)]/pL, where T(hv) is the transmission for photon energy hv, p is sample density, and L is path length through the sample. The density and path length are measured together by Rutherford backscatter…