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Geometry and mass model of ionizing radiation experiments on the LDEF satelliteExtensive measurements related to ionizing radiation environments and effects were made on the LDEF satellite during its mission lifetime of almost 6 years. These data, together with the opportunity they provide for evaluating predictive models and analysis methods, should allow more accurate assessments of the space radiation environment and related effects for future missions in low Earth orbit. The LDEF radiation dosimetry data is influenced to varying degrees by material shielding effects due to the dosimeter itself, nearby components and experiments, and the spacecraft structure. A geometry and mass model is generated of LDEF, incorporating sufficient detail that it can be applied in determining the influence of material shielding on ionizing radiation measurements and predictions. This model can be used as an aid in data interpretation by unfolding shielding effects from the LDEF radiation dosimeter responses. Use of the LDEF geometry/mass model, in conjunction with predictions and comparisons with LDEF dosimetry data currently underway, will also allow more definitive evaluations of current radiation models for future mission applications.
Document ID
19920016957
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Colborn, B. L. (Science Applications International Corp. Prospect, TN, United States)
Armstrong, T. W. (Science Applications International Corp. Prospect, TN, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1992
Subject Category
Atomic And Molecular Physics
Report/Patent Number
NASA-CR-184325
NAS 1.26:184325
SAIC-TN-9202
Accession Number
92N26200
Funding Number(s)
CONTRACT_GRANT: NAS8-39121
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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