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    "Descriptor": "SET>The Space Environment Testbeds",
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    "PI_name": "Dr. Keith Ryden (University of Surrey)",
    "PI_affiliation": "NASA",
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      "The Space Environment Testbeds (SET) Project performs flight and data investigations. It is the part of the LWS program of Science Missions and Targeted Research and Technology (TR&T) ground-based investigations that respond to the following questions: How and why does the Sun vary? How do the Earth and planets respond? What are the affects on humanity? SET uses existing data and new data from the low-cost SET mission to achieve the following: Define the mechanisms for space environment effects; Reduce uncertainties in the environment and its effects on spacecraft and their payloads; Improve design and operations guidelines and test protocols so that spacecraft anomalies and failures due to environmental effects during operations are reduced.",
      "The SET-1 payload will be flown on the Air Force Research Laboratory (AFRL) Demonstration and Science Experiments (DSX) spacecraft. The mission is baselined for a 6000 x 12,000 km, 42 degree inclination orbit with 1 year of operations. ",
      "Payload Experiments for SET-1 Cosmic Radiation Environment Dosimetry and Charging Experiment (CREDANCE) Objectives: 1) Characterize the energetic space radiation environment and its interactions with spacecraft  2) Provide data to other SET-1 experiments ",
      "Goals: 1) Provide data to improve radiation environment models and design tools; 2) Demonstrate the value of a compact space weather monitor in operational spacecraft ",
      "Measurements: 1) Proton flux > 40 MeV per unit solid angle; 2) Charge deposition in large silicon diodes arranged in telescopes. Pulse height analysis is used to obtain ion linear energy transfer (LET) spectra of heavy ions in the 100 MeV-cm2/g to 25000 MeV-cm2/g range; 3) Threshold voltage shift in MOS dosimeters to measure total ionizing dose at 2 different shielding depths; 4) Charging current at 3 different shielding depths to provide energetic electron flux measurements at 3 energies "
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    "Mission_group": "Space Environment Testbeds",
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    "Rules_of_use": "The SET data are archived as fully citable. Please consult BioSentinel team publications and personnel for further details on production, processing and usage of these data ",
    "Generated_by": " ",
    "Generation_date": " ",
    "Acknowledgement": "Please acknowledge the Mission Principal Investigators Dr. Clive Dyer, QinetiQ / United Kingdom",
    "LINK_TEXT": "Space Environment Testbeds Overview",
    "LINK_TITLE": "Space Environment Testbeds Overview",
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