Performances of compact integrated superconducting magnetometers for biomagnetic imaging

被引：0
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作者：
Granata, C. [1 ]
Vettoliere, A. [1 ,2 ]
Rombetto, S. [1 ]
Nappi, C. [1 ]
Russo, M. [1 ]
机构：
[1] Istituto di Cibernetica E. Caianiello, Consiglio Nazionale delle Ricerche, Pozzuoli, Napoli I-80078, Italy
[2] Advanced Technologies Biomagnetics Srl, I-65129 Pescara, Italy
来源：
Journal of Applied Physics | 2008年 / 104卷 / 07期
关键词：
In the present paper; performances of compact fully integrated superconducting quantum interference device (SQUID) magnetometers; recently developed; have been investigated in view of their employment in large multichannel systems for biomagnetic imaging. The analysis has been focused on SQUID sensors having a pickup loop side length of 3 and 4 mm based on a design aimed to maximize the magnetic flux transferred from the detection coil to the SQUID in comparison with a magnetometer with 9 mm side length having a suitable sensitivity for biomagnetic applications. The performance study has been consisted in the computation of the magnetic responses to a current dipole which is the most fundamental approach used in biomagnetism. The results have shown that the dipole current sensitivity of 4 mm long side compact magnetometers is suitable for application in multichannel systems for magnetoencephalography and magnetocardiography. © 2008 American Institute of Physics;
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