Design and Modeling of Dark Matter Axion Detectors
Transcript of Design and Modeling of Dark Matter Axion Detectors
Outline
• Background on me
• Dark matter axions
• The ADMX experiment
• My contributions to experiment
• Acknowledgments
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Who am I?
• High school senior
• Oak Park and River Forest High School
• Interested in aerospace engineering
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Dark Matter
• Makes up 24% of observable
mass/energy
• Does not interact or emit
electromagnetic radiation
• Likely made of particles
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Principle of Axion Detection
• Low temperature microwave cavities in strong magnetic field
• Axion microwave photon coupling
• Microwave photon detection
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Existing Axion Search Experiments
• ADMX (Axion Dark Matter eXperiment)
• Sidecar experiment
• Fermilab high frequency R&D
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How Does ADMX Work?
• Microwave cavities
• Inductor/capacitor circuit
• “Listening” for signal
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Low Noise High Power Amplification
• Power signature at Yoctowatt scale (10-24 watts)
• HFETs
• SQUIDs
HFET Amplifier Squid Amplifier
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High Frequency Detector Design
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Connection to Existing ADMX Equipment
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Connection to Existing ADMX Equipment
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Railgun test courtesy of US Navy
Connection to Existing ADMX Equipment
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Tuning on ADMX
• Two tuning rods to tune cavity
• Linear tuning system for antennas
• What's the difference?
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Tuning Rod Assembly
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Attocube ANR101 Actuator
Linear Adjustment Assembly
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Future Plans
• Fine tune design
• Build prototype
• Collect data
• Implement multiple cavity design
• Find axions!
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Acknowledgments
Thank you to:
• Quarknet (Chris Stoughton, Laura Thorpe, George Dzuricsko)
• Fermilab
• Andrew Sonnenschein
• Aaron Chou
• Daniel Bowring
• Benjamin Cain
• Chris Cameron
• Chiara Salemi
• Juan Takase
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