Abstract
The Axion Resonant InterAction Detection Experiment (ARIADNE) is a collaborative effort to search for the QCD axion using nuclear magnetic resonance (NMR), where the axion acts as a mediator of spin-dependent forces between an unpolarized tungsten source mass and a sample of polarized helium-3 gas. Since the experiment involves precision measurement of a small magnetization, it relies on limiting ordinary magnetic noise with superconducting magnetic shielding. In addition to the shielding, proper characterization of the noise level from other sources is crucial. We investigate one such noise source in detail: the magnetic noise due to impurities and Johnson noise in the tungsten source mass.
Original language | English (US) |
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Title of host publication | Microwave Cavities and Detectors for Axion Research - Proceedings of the 3rd International Workshop, 2018 |
Editors | Gianpaolo Carosi, Gray Rybka |
Publisher | Springer Science and Business Media Deutschland GmbH |
Pages | 71-81 |
Number of pages | 11 |
ISBN (Print) | 9783030437602 |
DOIs | |
State | Published - 2020 |
Event | 3rd International Workshop on Microwave Cavities and Detectors for Axion Research, 2018 - Livermore, United States Duration: Aug 21 2018 → Aug 24 2018 |
Publication series
Name | Springer Proceedings in Physics |
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Volume | 245 |
ISSN (Print) | 0930-8989 |
ISSN (Electronic) | 1867-4941 |
Conference
Conference | 3rd International Workshop on Microwave Cavities and Detectors for Axion Research, 2018 |
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Country/Territory | United States |
City | Livermore |
Period | 8/21/18 → 8/24/18 |
Funding
We acknowledge the work of Alex Brown, who as an undergraduate at Indiana University produced the mechanical drawings for the tungsten sprocket described in this work, and conducted measurements to confirm that the raw tungsten material met the necessary magnetic specifications before the sprocket was cut. Alex passed away in the fall of 2018 while beginning the graduate program in Physics at Florida State University. We acknowledge the support from the U.S. National Science Foundation, grant numbers NSF PHY-1509176, NSF PHY-1510484, NSF PHY-1506508, NSF PHY-1806671, NSF PHY-1806395, NSF PHY-1806757.
Keywords
- 3He
- ARIADNE
- Axion
- Fifth-force
- Interaction
- Magnetic impurity
- Nuclear magnetic resonance
- SQUID
- Superconductor
ASJC Scopus subject areas
- General Physics and Astronomy