Magnetometric Sensitivity and Spin Relaxation of Buffered Gas Cell for Cardiomagnetometer
| Autor: | Adil Meraki, Birgul Kacar, Bakmurat Kubanaliev, Ismail Yorulmaz, Isa Araz |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Heartbeat Magnetometer 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Magnetic field Laser linewidth law 0103 physical sciences Laser power scaling Atomic physics 0210 nano-technology Sensitivity (electronics) Voltage Radiofrequency coil |
| Zdroj: | MeMeA |
| DOI: | 10.1109/memea.2019.8802136 |
| Popis: | We investigated a diode-pumped Cs-based Mx type atomic magnetometer developed aiming the detection of low magnetic fields of the human heartbeat. In this study, we characterized and optimized the rf coil voltage and the laser power to achieve the minimum magnetic resonance linewidth for the best sensitivity. The measured half-width of an 18 Hz at half maximum and a signal-to-noise ratio of 22800 with shot-noise-limited were obtained. The sensitivity of the magnetometer was shown to be around 228 fT/vHz which is under the required limit for the cardiomagnetometer applications. |
| Databáze: | OpenAIRE |
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