Abstract
We developed a biomagnetic measurement system on mice. Our initial model of the system has the magnetic field sensitivity of 1.3 pT/Hz1/2 in the white-noise region (10 Hz-10 kHz). And using the system, we succeeded to obtain magnetically the heart activity on mice. However, in its application to measure the brain activity on mice, it was necessary to improve the magnetic field sensitivity of the system. Therefore, we changed the material of the window cap, which holds a sapphire glass window on the dewar tail, to ceramic. The system noise was decreased and the magnetic field sensitivity of the system was improved to 0.75 pT/Hz1/2 in the white-noise region. For an initial measurement of the brain activity, we also developed a whisker stimulation system using a piezoelectric element to evoke somatosensory responses.
| Original language | English |
|---|---|
| Article number | 297 |
| Pages (from-to) | 1219-1222 |
| Number of pages | 4 |
| Journal | Journal of Physics: Conference Series |
| Volume | 43 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Jun 1 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Biomagnetic measurement system on mice - Evaluation of system performance by MCG and application to MEG. / Nakamura, T.; Shirai, K.; Ono, Y.; Kasai, N.; Odawara, A.; Ishiyama, Atsushi.
In: Journal of Physics: Conference Series, Vol. 43, No. 1, 297, 01.06.2006, p. 1219-1222.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Biomagnetic measurement system on mice - Evaluation of system performance by MCG and application to MEG
AU - Nakamura, T.
AU - Shirai, K.
AU - Ono, Y.
AU - Kasai, N.
AU - Odawara, A.
AU - Ishiyama, Atsushi
PY - 2006/6/1
Y1 - 2006/6/1
N2 - We developed a biomagnetic measurement system on mice. Our initial model of the system has the magnetic field sensitivity of 1.3 pT/Hz1/2 in the white-noise region (10 Hz-10 kHz). And using the system, we succeeded to obtain magnetically the heart activity on mice. However, in its application to measure the brain activity on mice, it was necessary to improve the magnetic field sensitivity of the system. Therefore, we changed the material of the window cap, which holds a sapphire glass window on the dewar tail, to ceramic. The system noise was decreased and the magnetic field sensitivity of the system was improved to 0.75 pT/Hz1/2 in the white-noise region. For an initial measurement of the brain activity, we also developed a whisker stimulation system using a piezoelectric element to evoke somatosensory responses.
AB - We developed a biomagnetic measurement system on mice. Our initial model of the system has the magnetic field sensitivity of 1.3 pT/Hz1/2 in the white-noise region (10 Hz-10 kHz). And using the system, we succeeded to obtain magnetically the heart activity on mice. However, in its application to measure the brain activity on mice, it was necessary to improve the magnetic field sensitivity of the system. Therefore, we changed the material of the window cap, which holds a sapphire glass window on the dewar tail, to ceramic. The system noise was decreased and the magnetic field sensitivity of the system was improved to 0.75 pT/Hz1/2 in the white-noise region. For an initial measurement of the brain activity, we also developed a whisker stimulation system using a piezoelectric element to evoke somatosensory responses.
UR - http://www.scopus.com/inward/record.url?scp=33746275449&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746275449&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/43/1/297
DO - 10.1088/1742-6596/43/1/297
M3 - Article
AN - SCOPUS:33746275449
VL - 43
SP - 1219
EP - 1222
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 297
ER -