@inproceedings{oai:jaxa.repo.nii.ac.jp:00005238, author = {田川, 雅人 and Tagawa, Masahito}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Proceedings of International Symposium on "SM/MPAC & SEED Experiment"}, month = {Mar}, note = {International Symposium on "SM/MPAC & SEED Experiment" (International Congress Center EPOCHAL TSUKUBA, 10-11 March 2008), In Japan, the largest material exposure program "SM/MPAC&SEED (Service Module/ Micro-Particles Capturer and Space Environment Exposure Device) Experiment" has been completed. This program is quite ambitious among the other Japanese materials exposure tests; 3 sets of samples have been exposed for 1, 2 and 3 years in orbit in order to discover the fluence dependence of the material responses. We have learned a lot of lessons from this program. Based on the lessons learned, the "Advanced Material Exposure Test Working Group" has been established by the Committee on Space Utilization in 2007. This working group discussed the current problems of the material exposure program (flight tests) and proposed the future direction of the experimental methodologies. In this presentation, problems and new challenges discussed in this working group will be discussed., Physical characteristics: Original contains color illustrations, 資料番号: AA0064307022, レポート番号: JAXA-SP-08-015E}, pages = {171--176}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {Future space exposure experiment beyond 2011: Its problems and new challenges}, volume = {JAXA-SP-08-015E}, year = {2009} }