facet experiment

1 Training Purposes OnlyJEM FACET 31407 JMU-081116 (Ver. 1.1)

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).

Facet Experiment

JEM FACET 31407

Instructor: Takashi Yamasaki Yuki Kawai Takuya Takami

([email protected])([email protected]) ([email protected])


Objectives

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.

After this lesson the trainee will be able to:


Lesson Outline

Contents:

- Facet Experiment

- Facet Cell

- Facet Operations Overview

- Key points during Facet Operations

- Acronyms

- Appendix

Page

4

5

6

7

8

9


Facet 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))

The purpose of Facet Experiment is the following.

- Investigation on Mechanism of Faceted Cellular Array Growth.

Onboard Outcomes from the experiment

Amplitude Modulation Microscope Transparent

Mach ZehnderInterferometer (532nm)

Mach Zehnder Interferometer (780nm)

Video Images taken by SCOFMagnification: x2Image Size: 3.2mm x 2.4mm


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.

Facet Cell

Facet Cell

2 Specimen cells(Glass windows areon top and bottom (in total 4 windows))

Facet Cell installed in SCOF


:Crew operation necessary.

:Crew operation as required.

:Ground operation.

LEGEND:

Facet Cell Installation

Optical Adjustment (ground)

Optical Adjustment (crew)

Experiment

SCOF Cable Connection

MMA/MLT ActivationSCOF Activation

Facet Cell Removal

- Activate UDC and MMA/MLT.

- Deactivate UDC and MMA/MLT.

MMA/MLT DeactivationSCOF Deactivation

MMA Data Acquisition

IPU Video Downlink

Secondary Power Off

- Install Facet Cell in SCOF.

*

*

- Connect SCOF Payload Bus Cable and IPU User Video Cables.

IPU Activation

IPU Deactivation

Facet Operations Overview

- 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.

- Adjust focus, field of view, and interference fringes of SCOF if ground is difficult to adjust.

- Remove and trash Facet Cell.

Facet Cell Reorientation

- Rotate Facet Cell to change samples.

* Repeat experiment as ground changes experiment parameters.


Key points during Facet Operations

Category Key points

Crew Safety Verify glass windows of Facet Cell are NOT broken or cracked through Ziplock bag and Tape to prevent crew exposure to broken glass hazard.

Time Critical Operation N/A

Dos and Don’ts Do not damage glass window with alignment pins while handling Facet Cell in SCOF.

Difficulty in Ops. N/A

Possible Mis-Ops. N/A


Acronyms

IPUMMAODFSCOFUDC

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


Appendix

Images/Diagrams


Facet Cell (Birds eye)


Facet Cell (top)


Facet Cell (bottom)


Facet Cable


Facet Cell (Inside)


Facet Cell (Specimen Cell)

facet experiment

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