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NIST DART-MS Forensics Database (is-CID)
Data provided by National Institute of Standards and Technology
The NIST DART-MS Forensics Database is an evaluated collection of in-source collisionally-induced dissociation (is-CID) mass spectra of compounds of interest to the forensics community (e.g. seized drugs, cutting agents, etc.). The is-CID mass spectra were collected using Direct Analysis in Real-Time (DART) Mass Spectrometry (MS), either by NIST scientists or by contributing agencies noted per compound. The database is provided as a general-purpose structure data file (.SDF).
Tags: Standard reference data,mass spectra,Ion Fragmentation,mass spectrometry,NIST Mass Spectral Libraries,Chemical Identification,Biosciences and Health,Security and Forensics,
Modified: 2024-02-22
Nb/a-Si/Nb Josephson junctions for high-density superconducting circuits
Data provided by National Institute of Standards and Technology
This comprehensive data set includes the electrical characterization measurements of sputtered Nb/a-Si/Nb Josephson junctions (JJs) for high-speed and high-density superconducting electronics. JJs were studied with critical current densities (Jc) ranging from 0.01 mA/?m^2 to 3 mA/?m^2 and with and without annealing at various temperatures. These properties indicate that Nb/a-Si/Nb Josephson junctions are a potential candidate to extend the speed and circuit density of superconducting electronics to 50 nm diameter (25 mA/?m^2) JJs.
Tags: Josephson junctions,superconducting electronics,Josephson devices,single flux quantum,fabrication process,
Modified: 2024-02-22
Data for the manuscript: Integrating planar photonics for multi-beam generation and atomic clock packaging on chip.
Data provided by National Institute of Standards and Technology
Experimental and modeling data from the manuscript: 'Integrating planar photonics for multi-beam generation and atomic clock packaging on chip', C. Ropp, et.al., accepted for publication in Light: Science & Application, 2023.
Tags: integrated photonics,atomic clock,photonic-atomic interface,metasurfaces,extreme mode converters,hybrid integration,
Modified: 2024-02-22
Single-track laser scan cross-sectional micrographs on IN625 and IN718 bare plates with melt pool depth and width measurements
Data provided by National Institute of Standards and Technology
Single-track laser scans were produced with Yb-fiber lasers on bare plates of IN625 and IN718 using three different laser powder bed fusion machines. The laser power, scan speed, and laser spot diameter varied. Tracks were cross-sectioned and metallographically prepared. Optical micrographs were taken on etched samples. Melt pool depth and width measurements were made on optical micrographs. The dataset includes optical micrographs and melt pool width and depth measurements.
Tags: melt pool,Laser Powder Bed Fusion,process maps,microstructure,
Modified: 2024-02-22
Data for manuscript: Beating thermal noise in a dynamic signal measurement by a nanofabricated cavity-optomechanical sensor.
Data provided by National Institute of Standards and Technology
'Beating thermal noise in a dynamic signal measurement by a nanofabricated cavity-optomechanical sensor', Mingkang Wang, Diego J. Perez-Morelo, Georg Ramer, Georges Pavlidis, Jeffrey J. Schwartz, Liya Yu, Robert Ilic, Andrea Centrone, and Vladimir A. Aksyuk, Science Advances 9, eadf759, 2023.DOI:10.1126/sciadv.adf7595Thermal fluctuations often impose both fundamental and practical measurement limits on high-performance sensors, motivating the development of techniques that bypass the limitations imposed by thermal noise outside cryogenic environments.
Tags: Thermal noise,cavity optomechanical sensing,nanomechanical resonator,PTIR,
Modified: 2024-02-22
Data for "Preparing for 6G: Developing best practices and standards for industrial measurements of low-loss dielectrics"
Data provided by National Institute of Standards and Technology
Data for "Preparing for 6G: Developing best practices and standards for industrial measurements of low-loss dielectrics"
Tags: Dielectrics,measurements,mmWave,Standard Reference Material,
Modified: 2024-02-22
Hestia Fossil Fuel Carbon Dioxide (FFCO2) Data Product -- NE corridor domain, Version 1.0 Beta, 0.01 degree grid
Data provided by National Institute of Standards and Technology
The Hestia NE corridor version 1.0 Beta FFCO2 emissions data product represents emissions from the combustion of fossil fuels and cement production in 12 counties in the state of Maryland (6 counties), Virginia (5 counties), and District of Columbia from 2010 to 2015. The emissions are generated using a bottom-up/engineering approach and use the results generated by the Vulcan Project (version 3), an effort to quantify space/time-resolved FFCO2 emissions for the entire United States landscape, as the starting point for the more detailed Hestia analysis.
Tags: Greenhouse gas measurements and models,emission inventories,urban greenhouse gas domes,GHG concentration measurements,fossil fuel carbon dioxide,
Modified: 2024-02-22
Coherence-limited digital control of a superconducting qubit using a Josephson pulse generator at 3 K
Data provided by National Institute of Standards and Technology
Most data generated are averaged heterodyne IQ voltages of a reflectometry of a superconducting cavity dispersively coupled to a transmon qubit, where the phase shift of the cavity probe tone is used to infer the qubit state. These data are collected while performing various parameter sweeps to track the qubit state evolution in response to various stimuli.There is also simulation data used to model qubit state evolution when driven with digital pulses.
Tags: Quantum computing,scalable,cryogenic control,Josephson junction (JJ),Single Flux Quantum (SFQ),transmon,superconductor,
Modified: 2024-02-22
Additive Manufacturing Benchmark 2022 Schema
Data provided by National Institute of Standards and Technology
This resource is the implementation in XML Schema [1] of a data model that describes the Additive Manufacturing Benchmark 2022 series data. It provides a robust set of metadata for the build processes and their resulting specimens and for measurements made on these in the context of the AM Bench 2022 project.The schema was designed to support typical science questions which users of a database with metadata about the AM Bench results might wish to pose.
Tags: data model,additive manufacturing,build plate,material composition,laser absorptivity,radiography,mechanical testing,
Modified: 2024-02-22
Thermal Drift Monitoring Experiment 01
Data provided by National Institute of Standards and Technology
An experiment was set up within a machine tool at the National Institute of Standards and Technology (NIST) to test vision-based thermal drift tracking methods. A wireless microscope within a tool holder in the spindle is used to capture videos of image targets attached to the worktable. For each target, one video is captured during spindle rotation orthogonal to the worktable and another video is captured during axis translation orthogonal to the worktable.
Tags: Thermal error,machine tool,monitoring,manufacturing,Microscope,
Modified: 2024-02-22