| Instrument: SPACE RADIATION DOSIMETER |
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Associated Platforms DMSP 5D-2/F7 Related Data Sets View all records related to this instrument Description [Source: National Space Science Data Center, http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1983-113A-07 ] The primary purpose of the space radiation dosimeter was to measure the radiation dose above desired thresholds in silicon under aluminum shielding of four thicknesses representative of the Block 5D DMSP spacecraft. The instrument consisted of four detectors mounted beneath hemispherical domes of different thicknesses. Each detector was a pin-diffused junction silicon diode. The dosimeter directly measured the ionization in the silicon cube caused by natural radiation and served as an electron-proton spectrometer, thus yielding the integral fluxes of energetic electrons and protons encountered in the orbit as a function of time. The energy thresholds for measured electrons by different dome sensors were 1.0, 2.5, 5.0 and 10.0 MeV, and those for protons were 20, 35, 51, and 75 MeV. The radiation dose and the energetic electron flux obtained in this experiment may result in an optimization of space radiation-shielding design to protect sensitive electronics components. Online Resources http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1983-113A-07 Instrument Logistics Instrument Owner: Department of Defense-Department of the Air Force (United States) |
