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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 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
Background on AMiBA(Array for Microwave Background Anisotropy(AMiBA) • What is AMiBA? • How does AMiBA collect data?
Element Receiver Vacuum cold head
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
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
Fabrication • Materials • Installation • 4 phases • Testing • At AMiBA Laboratory in Hilo • At AMiBA telescope on Mauna Loa
Phase 1 Drilling holes in the housing for mounting switches and connectors.
Phase 2 Components are laid out
Phase 3 Construction of an add on circuit for LEDs
Phase 4 Wiring Complete
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
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
This is used to activate the cold heads Split Box