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Instruments > Earth Remote Sensing Instruments > Passive Remote Sensing > Thermal/Radiation Detectors > SPACE RADIATION DOSIMETER

Preferred term

SPACE RADIATION DOSIMETER  

Definition

  • [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. Group: Instrument_Details Entry_ID: SPACE RADIATION DOSIMETER Group: Instrument_Identification Instrument_Category: Earth Remote Sensing Instruments Instrument_Class: Passive Remote Sensing Instrument_Type: Thermal/Radiation Detectors Short_Name: SPACE RADIATION DOSIMETER End_Group Group: Associated_Platforms Short_Name: DMSP 5D-2/F7 End_Group Online_Resource: http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=1983-113A-07 Creation_Date: 2008-09-29 Group: Instrument_Logistics Instrument_Owner: Department of Defense-Department of the Air Force (United States) End_Group End_Group (en)

Broader concept

URI

https://gcmd.earthdata.nasa.gov/kms/concept/bf168eb9-97ed-4396-8013-13e4a35c3697

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