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Novel HTS DC Squid Solutions for NMR Applicationsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 18 ноября 2014 г.
- Авторы: Chukharkin Maxim L., Kalabukhov Alexey S., Schneiderman Justin F., Oisjoen Fredrik, Jonsson Magnus, Xie Minshu, Snigirev Oleg V., Winkler Dag
- Сборник: MAGNETIC RESONANCE DETECTION OF EXPLOSIVES AND ILLICIT MATERIALS
- Серия: NATO Science for Peace and Security Series B: Physics and Biophysics
- Год издания: 2014
- Место издания: SPRINGER PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
- Первая страница: 151
- Последняя страница: 159
- DOI: 10.1007/978-94-007-7265-6\_\_13
- Аннотация: We have developed a multilayer flux-transformer-based high-T-C 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/Phi(0)) that increased the signal available to the flip-chip sensor and to the lower noise at the measurement frequency (15 vs 25 fT/Hz(1/2) 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-TC SQUID technology. The experimental details of the sensors, calibration, and ulf-MR benchmarking are presented in this report.
- Добавил в систему: Калабухов Алексей Сергеевич