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Compared with superconducting quantuminterference devices, chip-scale atomic magnetometersusing the wafer-level micro alkali vapor cells can be usedmore conveniently in the applications of geophysicalmapping, health care and remote monitoring. Drasticwall collisions and decreased polarization lifetime arethe main barriers for the performance of the chip-scaleatomic magnetometers. In this study, OTS...
Atomic magnetometer operating in spin-exchange-relaxation-free (SERF) regime has a wide range of applications due to its ultra-high sensitivity. However, the requirement of operating in near-zero magnetic field restricts some of the applications which need the atomic magnetometer to work in the high field environment such as monitoring the magnetic anomalies. A novel scheme of the chip-scale SERF...
The importance of the atomic magnetometer hasalready been widely recognized and it is an emergency to come up with portable atomic magnetometers with highperformance. The scalar magnetometer with its uniqueproperty of merely sensitive to the magnitude but relativelyinsensitive to the direction of the ambient magnetic field. This work presents a novel solution which combines two types of scalar atomic...
An APMP supplementary inter-comparison of loop antennas (9 kHz – 30 MHz) has been carried out between NMIJ, KRISS and NMIA. This summary describes the outline of the comparison and its progress so far. Measurement results will be presented at the conference (CPEM2014).
This paper describes a simplified method of measuring magnetic loop antenna factor over the frequency range from 9 kHz to 30 MHz by using a 3-port Impedance/Gain-Phase Analyzer at NMIA.
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