Search Data.gov

• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00 | Harvested: June 27, 2025 at 06:53 PM

The databases ESTAR, PSTAR, and ASTAR calculate stopping-power and range tables for electrons, protons, or helium ions. Stopping-power and range tables can be calculated for electrons in any...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00 | Harvested: June 27, 2025 at 06:50 PM

This database collects tables and graphs of the form factors, the photoabsorption cross section, and the total attenuation coefficient for any element (Z <= 92). Version 2.1

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• Organization: National Institute of Standards and Technology
• Updated: 2005-07-01 00:00:00 | Harvested: June 27, 2025 at 06:53 PM

This database provides theoretical values of energy levels of hydrogen and deuterium for principle quantum numbers n = 1 to 200 and all allowed orbital angular momenta l and total angular momenta...

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• Organization: National Institute of Standards and Technology
• Updated: 2022-10-28 00:00:00 | Harvested: June 27, 2025 at 07:51 PM

This dataset represents absorption/transmission spectra of resonant probe light power through a Rydberg atom vapor, subject to a simultaneous dressing field and a 'low frequency' field. Data is...

• Organization: National Institute of Standards and Technology
• Updated: 2009-09-01 00:00:00 | Harvested: June 27, 2025 at 06:52 PM

This database contains critically evaluated transition frequencies for the molecular transitions detected in interstellar and circumstellar clouds reported in the literature through mid-2008. The...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-09-01 00:00:00 | Harvested: June 27, 2025 at 06:56 PM

The Standard Reference Simulation Website is an ongoing project whose aim is to provide well-documented simulation results for a variety of systems and from various simulation techniques. The data...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-04-24 00:00:00 | Harvested: June 27, 2025 at 07:17 PM

This data set consist of two representations of the electron-induced copper k-alpha x-ray emission spectrum. One file contains rebinned counting data, and is close to 'raw'. The second file...

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• dadta columns as described above
• 3-column text file, delimited with spaces. first column is photon energy in ev. second column is intensity. third column is the spline coefficient, as described in the paper.
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• Organization: National Institute of Standards and Technology
• Updated: 2019-04-01 00:00:00 | Harvested: June 27, 2025 at 07:17 PM

This data set consist of rebinned data, with and without efficiency corrections, from the kl, km, and kn emission lines of the molybdenum x-ray spectrum.

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• space-delimited 8-column text file with 6 lines of comments at the beginning. format is :# data set structure # column 1: energy, ev # column 2: system efficiency # column 3, 4: raw intensity and standard error # column 5, 6: raw background and standard error # column 7, 8: efficiency corrected net intensity and standard error
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• Organization: National Institute of Standards and Technology
• Updated: 2004-07-01 00:00:00 | Harvested: June 27, 2025 at 06:52 PM

This database contains the rotational spectral lines observed and reported in the open literature for 91 hydrocarbon molecules through September 1987. The isotopic molecular species, assigned...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-11-01 00:00:00 | Harvested: June 27, 2025 at 06:52 PM

This database contains the rotational spectral lines observed and reported in the open literature for 121 diatomic molecules through July 2002. The isotopic molecular species, assigned quantum...

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• Organization: National Institute of Standards and Technology
• Updated: 2007-06-01 00:00:00 | Harvested: June 27, 2025 at 06:53 PM

CO2 is studied using dispersed synchrotron radiation in the 650 Å and 840 Å spectral region. The vibrationally resolved photoelectron spectra are analyzed to generate relative vibrational...

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• Organization: National Institute of Standards and Technology
• Updated: 2003-07-01 00:00:00 | Harvested: June 27, 2025 at 06:52 PM

This data base contains the rotational spectral lines observed and reported in the open literature for 55 triatomic molecules through June 1976. The isotopic molecular species, assigned quantum...

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• Organization: National Institute of Standards and Technology
• Updated: 1998-04-01 00:00:00 | Harvested: June 27, 2025 at 06:52 PM

Wavenumber Calibration Tables from Heterodyne Frequency Measurements contains tables of gas-phase infrared transition wavenumbers and their spectroscopic assignments that are appropriate for...

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• Organization: National Institute of Standards and Technology
• Updated: 2022-10-14 00:00:00 | Harvested: June 27, 2025 at 07:49 PM

A SQLite database containing mass absorption coefficient (both discrete and continuous), atomic sub-shell binding energy, X-ray energy, jump ratio, ground-state occupancy, atomic relaxation rate...

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• sqlite database format
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• sqlite sql

• Organization: Department of Agriculture
• Updated: 2025-05-30 | Harvested: July 14, 2025 at 04:21 PM

<p dir="ltr"><i>2.1 Source Host and Parasitoid Insects</i></p><p dir="ltr">For all assays, 4–8-week-old <i>R. dominica</i> were reared on wheat, while <i>S. oryzae</i> were reared on wheat...

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• Organization: Department of Agriculture
• Updated: 2024-12-19 | Harvested: June 24, 2025 at 07:33 PM

<p dir="ltr"><i>Trapping in 2023 with a linear set of dosages of </i>(E)<i>-8-dodecenyl acetate</i></p><p dir="ltr">Field trapping was done according to the methodology in Ruiz et al. 2022. The...

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• Organization: Department of Agriculture
• Updated: 2025-05-30 | Harvested: July 14, 2025 at 04:21 PM

<p>Insect Strains and Rearing: Two field-derived strains of T. castaneum from either Eastern Kansas, collected in 2012, or Riley County, KS, collected in 2019, were used to assess the effect of...

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• Organization: Department of Agriculture
• Updated: 2025-08-18 | Harvested: September 03, 2025 at 12:12 AM

<p dir="ltr"><i>Insects</i></p><p dir="ltr">The<i> S. fulvus</i> used in this experiment were progeny of field-collected weevils. As described by Prasifka et al. (2015), adult weevils were...

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• Organization: National Institute of Standards and Technology
• Updated: 2013-01-01 00:00:00 | Harvested: July 14, 2025 at 02:43 PM

FLYCHK provides a capability to generate atomic level populations and charge state distributions for low-Z to mid-Z elements under NLTE conditions.

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• Organization: National Institute of Standards and Technology
• Updated: 2020-07-25 00:00:00 | Harvested: June 27, 2025 at 07:24 PM

NeXLCore.jl represents the basic physics related data and algorithms necessary to interpret and understand X-ray emission.

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• julia package