{
  "Spase": {
    "xmlns:xsi": "http://www.w3.org/2001/XMLSchema-instance",
    "xmlns": "http://www.spase-group.org/data/schema",
    "xsi:schemaLocation": "http://www.spase-group.org/data/schema http://www.spase-group.org/data/schema/spase-2_0_0.xsd",
    "Version": "2.0.0",
    "Instrument": {
      "ResourceID": "spase://SMWG/Instrument/ACE/ULEIS",
      "ResourceHeader": {
        "ResourceName": "Ultra-Low Energy Isotope Spectrometer (ULEIS)",
        "AlternateName": "ULEIS",
        "ReleaseDate": "2019-05-05T12:34:56Z",
        "Description": "The Ultra Low Energy Isotope Spectrometer (ULEIS) measures energetic ion fluxes over the charge range\n   from He through Ni from about 20 keV/nucleon to 10 MeV/nucleon with mass resolution less than or equal to 0.3 amu.\n   Ultra-heavy species (above Ni) are also measured in a limited energy range near 0.5 MeV/nucleon. The ULEIS telescope\n   is a time-of-flight (TOF) mass spectrometer which identifies ions by TOF and by residual kinetic energy E of\n   particles which enter the 24 deg. x 20 deg. aperture and stop in one of an array of silicon solid state detectors.\n   The geometric factor is about one sq.cm.-sr. The TOF measurement is determined by start and stop signals from\n   microchannel plate (MCP) assemblies detecting secondary electrons emitted from incident ion passage through a\n   thin entrance foil and other such foils within the telescope. In order to prevent electronic pile-up during intense\n   flux periods, a mechanical shutter ('iris') slides partially closed under on-board control dependent on the start\n   MCP singles counting rate. The iris can decrease the ULEIS geometric factor by up to a factor of 100 during the\n   most intense events. Full analysis of individual ions requires 128 bits/event for up to six events per second. Two\n   types of rate data are included: sectored singles rates for each detector with 8 sectors for 18 rates at 12\n   bits/rate in compressed format; sectored counts of 5 particle species in 20 energy ranges and 8 sectors at 12\n   bits/s (compressed). These rate data are read out every 60 seconds at 189 b/s. Housekeeping and other\n   miscellaneous data require 43 b/s, the total data rate being about 1 kbps. The ULEIS experiment manager\n   is Dr. Robert E. Gold of the Applied Physics Laboratory of Johns Hopkins University.",
        "Contact": {
          "PersonID": "spase://SMWG/Person/Robert.E.Gold",
          "Role": "PrincipalInvestigator"
        },
        "InformationURL": [
          {
            "Name": "NSSDC's Master Catalog",
            "URL": "https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1997-045A-03",
            "Description": "Information about the Ultra-Low Energy Isotope Spectrometer (ULEIS) experiment on the ACE mission."
          },
          {
            "Name": "Space Science Reviews Journal Article",
            "URL": "https://link.springer.com/article/10.1023/A:1005079930780",
            "Description": "Detailed information about the Ultra-Low Energy Isotope Spectrometer (ULEIS) experiment on the ACE mission."
          }
        ]
      },
      "InstrumentType": "MassSpectrometer",
      "InvestigationName": "Ultra-Low Energy Isotope Spectrometer (ULEIS) on ACE",
      "ObservatoryID": "spase://SMWG/Observatory/ACE"
    }
  }
}