{
  "@type": "dcat:Dataset",
  "accessLevel": "public",
  "accrualPeriodicity": "irregular",
  "bureauCode": [
    "006:55"
  ],
  "contactPoint": {
    "fn": "Nicholas Ritchie",
    "hasEmail": "mailto:nicholas.ritchie@nist.gov"
  },
  "description": "Automated particle analysis (SEM/EDS) data from samples known to have been exposed to gunshot residue and from samples occasionally mistaken for gunshot residue - like brake dust and fireworks. The dataset consists of analyses of 30 discrete samples: 12 from sampling automobiles (\"brake dust\"), 10 from sampling fireworks (\"sparklers\" and \"spinners\" and \"roman candles\"), 8 from shooter's left or right hands. The analysis configuration meta-data for each analysis are contained in the \"configuration.txt\" and \"script.py\" files.  The raw data from each analysis is in the file pair \"data.pxz\" and \"data.hdz\".  The HDZ-file details the contents of the PXZ-file.  In addition, the \"mag0\" directory contains TIFF images with embedded X-ray spectra for each particle in the dataset. Additional HDZ/PXZ files contain the results of reprocessing the \"data.hdz/.pxz\" in light of the \"mag0\" spectra and the standard spectra in \"25 keV.zip\" The samples came from Amy Reynolds (amy.reynolds@pd.boston.gov) at the Boston Police Department.  The \"Shooter\" samples were taken from a volunteer who fired a gun at a local firing range and was then sampled immediately after.  They are part of a time series that was used to study GSR retention. The TIFF Image/Spectrum files can be read using NIST DTSA-II (https://www.nist.gov/services-resources/software/nist-dtsa-ii) or NeXLSpectrum.jl (https://doi.org/10.18434/M32286).  The HDZ/PXZ files can be read using NIST Graf (available on request) or NeXLParticle.jl (https://github.com/usnistgov/NeXLParticle.jl).",
  "distribution": [
    {
      "accessURL": "https://doi.org/10.18434/mds2-2476",
      "title": "DOI Access for Automated particle analysis (SEM/EDS) data from samples known to have been exposed to gunshot residue and from samples occasionally mistaken for gunshot residue - like brake dust and fireworks."
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/25%20keV.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/25%20keV.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Front%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Front%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Front%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Front%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Rear%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Rear%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Rear%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Chevy%20Caprise%20422PC2%20Rear%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Debris%20from%20sparklers.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Debris%20from%20sparklers.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Front%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Front%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Front%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Front%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Rear%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Rear%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Rear%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20A213%20Rear%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Front%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Front%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Front%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Front%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Rear%20Driver.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Rear%20Driver.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Rear%20Passenger.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Ford%20Explorer%20B297%20Rear%20Passenger.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Debris%20from%20JWC.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Debris%20from%20JWC.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Post%20cleanup.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Post%20cleanup.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Post-handling%2C%20pre-ignition.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Roman%20Candles%20-%20Post-handling%2C%20pre-ignition.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%231%20-%20Zero%20time.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%231%20-%20Zero%20time.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%232%20-%20Zero%20time.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%232%20-%20Zero%20time.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%233%20-%20Zero%20time%20L.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%233%20-%20Zero%20time%20L.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%233%20-%20Zero%20time%20R.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%233%20-%20Zero%20time%20R.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%234%20-%20Zero%20time%20L.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%234%20-%20Zero%20time%20L.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%234%20-%20Zero%20time%20R.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%234%20-%20Zero%20time%20R.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%235%20-%20Zero%20time%20L.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%235%20-%20Zero%20time%20L.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%235%20-%20Zero%20time%20R.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Shooter%20%235%20-%20Zero%20time%20R.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Sparklers%20during%20burn.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Sparklers%20during%20burn.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Sparklers%20post%20handling%20post%20burn.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Sparklers%20post%20handling%20post%20burn.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Debris%20from%20spinner.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Debris%20from%20spinner.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-cleanup.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-cleanup.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-handling%2C%20pre-ignition.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-handling%2C%20pre-ignition.zip.sha256",
      "mediaType": "text/plain"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-ignition.zip",
      "mediaType": "application/zip"
    },
    {
      "downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-2476/Spinners%20-%20Post-ignition.zip.sha256",
      "mediaType": "text/plain"
    }
  ],
  "identifier": "ark:/88434/mds2-2476",
  "issued": "2021-09-30",
  "keyword": [
    "APA",
    "GSR",
    "SEM/EDS",
    "SEM/EDX",
    "automated particle analsyis",
    "energy dispersive x-ray spectrometry",
    "forensic",
    "gunshot residue",
    "scanning electron microscope"
  ],
  "landingPage": "https://data.nist.gov/od/id/mds2-2476",
  "language": [
    "en"
  ],
  "license": "https://www.nist.gov/open/license",
  "modified": "2021-09-29 00:00:00",
  "programCode": [
    "006:045"
  ],
  "publisher": {
    "@type": "org:Organization",
    "name": "National Institute of Standards and Technology"
  },
  "theme": [
    "Forensics:Trace evidence",
    "Materials:Materials characterization"
  ],
  "title": "Automated particle analysis (SEM/EDS) data from samples known to have been exposed to gunshot residue and from samples occasionally mistaken for gunshot residue - like brake dust and fireworks."
}