@inproceedings{oai:jaxa.repo.nii.ac.jp:00006374, author = {Dennison, J. R. and Pearson, L. and Davis, L. and Burns, J. W. and Hyde, R. S. and Dyer, James S. and Andrus, Tina and Auman, Andrew and Duce, Jeff and Neilsen, Tim}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: 9th Spacecraft Charging Technology Conference}, month = {Aug}, note = {A study of the effects of prolonged exposure to the space environment and of charge-enhanced contamination on the electron emission and resistivity of spacecraft materials, the State of Utah Space Environment & Contamination Study (SUSpECS), is planned for flight aboard the MISSE-6 payload. The Materials International Space Station Experiment (MISSE-6) program is designed to characterize the performance of candidate new space materials over the course of approximately nine months exposure periods on-orbit on the International Space Station, with a target flight date of mid-2006. Approximately 70 samples will be mounted on panels on both the ram and wake sides of the ISS. They have been carefully chosen to provide needed information for different ongoing studies and a broad cross-section of prototypical materials used on the exteriors of spacecraft. Pre- and post-flight characterization measurements include optical and electron microscopy, reflection spectroscopy, resistivity and Auger electron spectroscopy. Studies of the service life of composite and ceramic materials of the ATK Thermal Protection Systems and Lightweight Structure Systems will evaluate chemical and mechanical properties as a function of depth from the AO and UV exposure surface. Most materials will be tested for resistivity and dielectric strength, and for electron-, ion-, and photon-induced electron emission yield curves and emission spectra. Electron emission and transport properties of materials are key in determining the likelihood of deleterious spacecraft charging effects and are essential parameters in modeling these effects with engineering tools like NASCAP-2K code. While preliminary ground-based studies have shown that contamination can lead to catastrophic charging effects under certain circumstances, little direct information is presently available on the effects of sample deterioration and contamination on emission properties for materials flown in space., 資料番号: AA0049206059, レポート番号: JAXA-SP-05-001E}, pages = {538--544}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {State of Utah Space Environment & Contamination Study (SUSpECS): A MISSE-6 payload to investigate their effects on electron emission and resistivity of spacecraft materials}, volume = {JAXA-SP-05-001E}, year = {2005} }