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Novel HTS DC squid ...
Novel HTS DC squid solutions for NMR applications
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- Chukharkin Leonidovich, Maxim, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kalaboukhov, Alexei, 1975 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Schneiderman, Justin F., 1979 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi,Institute of Neuroscience and Physiology,University of Gothenburg
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- Öisjöen, Fredrik, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jönsson, Magnus J, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xie, Minshu, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Snigirev, O. V. (författare)
- M. V. Lomonosov Moscow State University
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- Winkler, Dag, 1957 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- ISBN 9789400772649
- 2013-08-10
- 2014
- Engelska.
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Ingår i: NATO Science for Peace and Security Series B: Physics and Biophysics. - Dordrecht : Springer Netherlands. - 1874-6500. - 9789400772649 ; 2014, s. 151-159
- Relaterad länk:
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http://dx.doi.org/10...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://research.cha...
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Innehållsförteckning
Abstract
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- We have developed a multilayer flux-transformer-based high-TC SQUID (flip-chip) magnetometer that improves signal-to-noise-ratios (SNR) in ultra-low field magnetic resonance (ulf-MR) recordings of protons in water. Direct ulf-MR-based benchmarking of the flip-chip versus a standard planar high-T C SQUID magnetometer resulted in improvement of the SNR by a factor of 2. This gain is attributable to the improved transformation coefficient (1.9 vs 5.3 nT/Φ0) that increased the signal available to the flip-chip sensor and to the lower noise at the measurement frequency (15 vs 25 fT/Hz1/2 at 4 kHz). The improved SNR can lead to better spectroscopic resolution, lower imaging times, and higher resolution in ulf-MR imaging systems based on high-T C SQUID technology. The experimental details of the sensors, calibration, and ulf-MR benchmarking are presented in this report.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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