Figure 2 | Scientific Reports

Figure 2

From: Novel Handheld Magnetometer Probe Based on Magnetic Tunnelling Junction Sensors for Intraoperative Sentinel Lymph Node Identification

Figure 2

Probe limit of detection.

By measuring a range of magnetic tracer quantities at a fixed distance of 4.0 mm from the signal source, a 50 μg limit of detection (SNR = 2.0) was calculated. Due to the short-range nature of magnetic fields, this value can be significantly improved if the probe is moved closer to the signal source.  = Measured data;  = Calculated datum.

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