Pure crystal purification in 0g
Download
1 / 20

PURE – crystal purification in 0g - PowerPoint PPT Presentation


  • 153 Views
  • Uploaded on

PURE – crystal purification in 0g. Crystal purification experiment in 0 g environment during the ESA’s annual student parabolic flight campaign. Overview. Zero g Parabolic flights The pure experiment Bordeaux September 5 – 15 Dates & useful link Thanks to the sponsors. ZeroG Parabolic

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' PURE – crystal purification in 0g' - dieter


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Pure crystal purification in 0g

PURE – crystal purification in 0g

Crystal purification experiment in 0 g environment during the ESA’s annual student parabolic flight campaign


Overview
Overview

  • Zero g

  • Parabolic flights

  • The pure experiment

  • Bordeaux September 5 – 15

  • Dates & useful link

  • Thanks to the sponsors

ZeroG

Parabolic

Flight

Experiment

Bordeaux 06

Conclusion


Zerog
ZeroG

  • 0 G means no gravitational force is applied on the body and the weight of the body becomes 0.

  • Because of the General Theory of Relativity, this can be reached by a free falling object

    • > Parabolic trajectory

ZeroG

Parabolic

Flight

Experiment

Bordeaux 06

Conclusion


Parabolic flight
Parabolic Flight

  • The plane follows a parabolic trajectoire

  • Zero G during 18-23 sec

  • Pull-out/injection 1g -> 2g -> 0g -> 2g -> 1g

ZeroG

Parabolic

Flight

Experiment

Bordeaux 06

Conclusion


Pure experiment
PURE Experiment

  • The Team

    • Prof. D. Pavuna

      • advisor

    • Nicolai Chapochnikov

    • Mark Ambühl

    • Alexei Altoukhov

    • Alexandre de oliveira

  • The Idea

    -Zone Refining

  • ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Zone refining
    Zone refining

    • Move crystal impurities using a temperature gradient

      • > crystal purification

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Why 0 g
    Why 0 g

    • When a crystal is in 0 g, the atoms feel no gravitational constrains :

      • the impurities should move easier than in 1 g

      • there is no thermal convection effects

        → Better purification

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    The set up
    The set up

    • Setting of

      the experiment

      [video]

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Nothing is easy
    Nothing is easy

    • Constraints

      • Oven in the plane

      • Sample at the melting point

      • Overall protection

      • We want fun

    • [picture of the experiment with all the features]

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Going to bordeaux
    Going to Bordeaux

    • Finish working @EPFL at 6 in the morning

    • Loading the van

    • Arriving in Bordeaux the 1 September

    • 10 hours of road

    • Ready to work…

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    The workshop
    The workshop

    • Big white tent [picture]

    • Multicultural teams:

      • Norwegian, Portuguese, Italian, Spanish, Belgium, French, Hungarian, …

    • Multi-Faculty : physics, biology, …

    • Noises, drills and sugus

    • Last minutes tuning

    • Great expectations!

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Flights
    Flights

    • 2 sessions:

      • 6 Sept. : Alexei + Nicolai flew from Brussels to Bordeaux

        • All successful manipulations

        • Time to adapt

        • [video]

      • 7 Sept. : Mark + Alex flew from Bordeaux to Bordeaux (sic!)

        • Only 17 parabolas

        • All successful manipulations

        • [video]

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Feedback
    Feedback

    • Unpacking the experiment

    • Writing first result report + report for ESA

    • Interviews

    • Contacts

    • …all the best the French team

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Conclusion
    Conclusion

    • Wonderful experience

    • Unforgettable sensations

    • Meeting people

    • Lots of work

    • …the future : astronaut!

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Thank you sponsors
    Thank you sponsors!

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Dates
    Dates

    • End Novembre : comparaison of the results

    • End March 2007 : report finished

    • From April: dissemination of our results

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Contacts
    Contacts

    • PURE : http://pure.epfl.ch

    • ESA : http://www.esa.int/esaED/SEMFSU1A6BD_index_0.html

    • EPFL : www.epfl.ch

    • SPACE CENTER : http://space.epfl.ch/page57186.html

    • FSB : http://sb.epfl.ch/en

    • IPMC : http://ipmc.epfl.ch/

    • POSEIDON : http://poseidon.epfl.ch

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion


    Flights session1
    Flights – session1

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion

    <- back


    Flights session2
    Flights – session2

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion

    <- back


    The set up1
    The set up

    ZeroG

    Parabolic

    Flight

    Experiment

    Bordeaux 06

    Conclusion

    <- back


    ad