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AMiBA: Cold Head Remote Control

AMiBA: Cold Head Remote Control. Branden Bonilla Home Institution: Kauai Community College CfAO Akamai Internship 2008 Mentors: Derek Kubo, Pablo Altamirano. Outline. Background on AMiBA Problems/Things to Consider Solutions/introduce my project Fabrication Conclusion Acknowledgments.

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AMiBA: Cold Head Remote Control

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  1. AMiBA: Cold Head Remote Control Branden Bonilla Home Institution: Kauai Community College CfAO Akamai Internship 2008 Mentors: Derek Kubo, Pablo Altamirano

  2. Outline • Background on AMiBA • Problems/Things to Consider • Solutions/introduce my project • Fabrication • Conclusion • Acknowledgments

  3. Background on AMiBA(Array for Microwave Background Anisotropy(AMiBA) • What is AMiBA? • How does AMiBA collect data?

  4. Cold Heads

  5. Element Receiver Vacuum cold head

  6. Problems/Things to consider • vacuum not perfect • Too Much Down Time • Cold Heads turn on using a local switch • AMiBA is expanding from 7 to 13 elements

  7. Solution/introduce my project • Install a remote control • ADAM Controller • Controls cold heads through Ethernet connection • Build a new and bigger split box to house 13 switches

  8. Schematic Drawings

  9. Fabrication • Materials • Installation • 4 phases • Testing • At AMiBA Laboratory in Hilo • At AMiBA telescope on Mauna Loa

  10. Material: Housing

  11. Materials: Components

  12. Phase 1 Drilling holes in the housing for mounting switches and connectors.

  13. Back of the housing

  14. Phase 2 Components are laid out

  15. Phase 3 Construction of an add on circuit for LEDs

  16. Phase 4 Wiring Complete

  17. Testing: Hilo

  18. Testing: Mouna Loa

  19. Conclusion • Increase in efficiency of controlling cold heads • Reduction in down time for the AMiBA team • Smoother transition towards expansion of AMiBA • Personal gain: real engineering and Tech experience with the design and fabrication of split box

  20. Acknowledgements I would like to thank my mentor and collaborators: Derek Kubo, Pablo Altamirano, Peter Oshiro, and John Chen. Everyone at AMiBA and SMA for the use of facilities, materials and tools. The rest of the Akamai interns for support, help, and friendship. Lastly Sarah Anderson, Lynne Raschke, Lisa Hunter, Hilary O’Bryan, Scott Seagroves, as well as the entire CfAO Mahalo to everyone! Funding provided through the Center for Adaptive Optics, a National Science Foundation Science and Technology Center (STC), AST-987683

  21. Thank You

  22. This is used to activate the cold heads Split Box

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