التفاصيل البيبلوغرافية
| العنوان: |
Magnetocardiography with a modular spin-exchange relaxation-free atomic magnetometer array. |
| المؤلفون: |
Wyllie, R., Kauer, M., Smetana, G. S., Wakai, R. T., Walker, T. G. |
| المصدر: |
Physics in Medicine & Biology; May2012, Vol. 57 Issue 9, p2619-2632, 14p |
| مصطلحات موضوعية: |
MAGNETOCARDIOGRAPHY, NUCLEAR spin, MAGNETOMETERS, BIOMAGNETISM, MODULAR design, MAGNETIC shielding, ELECTROMAGNETIC noise |
| مستخلص: |
We present a portable four-channel atomic magnetometer array operating in the spin-exchange relaxation-free regime. The magnetometer array has several design features intended to maximize its suitability for biomagnetic measurement, specifically foetal magnetocardiography, such as a compact modular design and fibre-coupled lasers. The modular design allows the independent positioning and orientation of each magnetometer. Using this array in a magnetically shielded room, we acquire adult magnetocadiograms. Thesemeasurements were taken with a 6-11 fT Hz-1/2 single-channel baseline sensitivity that is consistent with the independently measured noise level of the magnetically shielded room. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
