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Facet Experiment

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Facet Experiment

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  1. Notice : This technical data is furnished on the condition that it will be used by and disclosed to the receiving Cooperating agency and its contractors and sub contractors only for the purposes of fulfilling the cooperating agency’s responsibilities under the Space Station Intergovernmental Agreement (IGA) and Memorandum of Understanding (MOU). It shall not be used for any other purpose, nor disclosed or retransferred to any other entity or government without prior written permission of the Japan Aerospace Exploration Agency (JAXA). JEM FACET 31407 Facet Experiment Instructor: Takashi Yamasaki Yuki Kawai Takuya Takami (yamasaki.takashi@jaxa.jp)(yuki.kawai@jamss.co.jp) (takami.takuya@jaxa.jp)

  2. Objectives After this lesson the trainee will be able to: • Facet Experiment • Facet Cell • Facet Operations Overview • Key point during Facet Operations • Facet Operations • Explain the science objective of Facet experiment. • List onboard outcomes from performing Facet experiment. • Explain the functions of Facet Cell. • List crew tasks regarding Facet experiment. • Explain what crew must verify to prevent crew exposure to broken glass hazard. • Explain what crew must pay attention to while handling Facet Cell in SCOF. • Perform Facet experiment tasks according to ODF.

  3. Lesson Outline Contents: - Facet Experiment - Facet Cell - Facet Operations Overview - Key points during Facet Operations - Acronyms - Appendix Page 4 5 6 7 8 9

  4. Facet Experiment The purpose of Facet Experiment is the following. - Investigation on Mechanism of Faceted Cellular Array Growth. Onboard Outcomes from the experiment • Temperature data monitored by Facet Cell (downlinked to ground via Solution Crystallization Observation Facility (SCOF)) • Video Images taken by SCOF (downlinked to ground via Image Processing Unit (IPU)) • Microgravity environment data taken by Microgravity Measurement Apparatus (MMA). (downlinked to ground via Image Processing Unit (IPU)) Video Images taken by SCOFMagnification: x2Image Size: 3.2mm x 2.4mm Mach Zehnder Interferometer (780nm) Mach ZehnderInterferometer (532nm) Amplitude Modulation Microscope Transparent

  5. Facet Cell Facet Cell - Facet Cell is one of SCOF Crystal Growth Cell dedicated to the Facet Experiment. - Functions of the Facet Cell are to: - make/melt crystal. - monitor temperature for analysis of crystallization process. - Facet Cell consists of the following items. - Facet Cell - Facet Cable (connected to SCOF) - 2 Specimen cells contain mixed solution of Phenyl Salicylate and t-Butanol (4 mol% and 8 mol%) (Toxic hazard level: 0 (zero)). - Sample melting temperature: approx. 34 degrees Celsius. 2 Specimen cells (Glass windows areon top and bottom (in total 4 windows)) Facet Cell Facet Cell installed in SCOF

  6. LEGEND: :Crew operation necessary. :Crew operation as required. :Ground operation. Facet Operations Overview - Connect SCOF Payload Bus Cable and IPU User Video Cables. SCOF Cable Connection - Install Facet Cell in SCOF. Facet Cell Installation * SCOF Activation IPU Activation MMA/MLT Activation - Activate UDC and MMA/MLT. Optical Adjustment (ground) IPU Video Downlink - Adjust focus, field of view, and interference fringes of SCOF if ground is difficult to adjust. Optical Adjustment (crew) Facet Cell Reorientation - Rotate Facet Cell to change samples. * Experiment MMA Data Acquisition - Flip down Secondary Power Off switch of SCOF per ground request. Only if ground cannot power off SCOF while temperature of seed crystal is reaching 34 degrees Celsius. Secondary Power Off * Repeat experiment as ground changes experiment parameters. SCOF Deactivation IPU Deactivation MMA/MLT Deactivation - Deactivate UDC and MMA/MLT. - Remove and trash Facet Cell. Facet Cell Removal

  7. Key points during Facet Operations

  8. IPUMMAODFSCOFUDC Image Processing UnitMicro-gravity Measurement ApparatusOperations Data FileSolution Crystallization Observation FacilityUtility DC/DC Converter unit Acronyms

  9. Appendix Images/Diagrams

  10. Facet Cell (Birds eye)

  11. Facet Cell (top)

  12. Facet Cell (bottom)

  13. Facet Cable

  14. Facet Cell (Inside)

  15. Facet Cell (Specimen Cell)

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