[논문]Reduction of Magnetic Noises in Cryocooler Operated Multichannel SQUID System

Yu, Kwon-Kyu; Kwon, Hyukchan; Kim, Jin-Mok; Lee, Sang-Kil; Kim, Bo-Kyung; Lee, Yong-Ho

doi:10.1109/tasc.2021.3057001

[해외논문] Reduction of Magnetic Noises in Cryocooler Operated Multichannel SQUID System

IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, v.31 no.5, 2021년, pp.1 - 5

Yu, Kwon-Kyu (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea) , Kwon, Hyukchan (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea) , Kim, Jin-Mok (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea) , Lee, Sang-Kil (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea) , Kim, Bo-Kyung (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea) , Lee, Yong-Ho (Korea Research Institute of Standards and Science, Quantum Magnetic Measurement Team, Daejeon, Republic of Korea)

Abstract ▼ AI-Helper

We developed a low-vibrational-noise cooling configuration using continuous liquefaction of evaporated helium gas from a multi-channel SQUID gradiometer system for whole-head magnetoencephalography (MEG) measurements. The initial reduction of the vibration of the cryocooler was done by rigidly mounting the remote motor and cold head chamber on a concrete wall. This significantly reduces transmission of vibrations to the transfer tube, especially compared with mounting them on vertical aluminum frames. In addition, to reduce vibrations from a mechanical SQUID array insert, we completely eliminated it by mounting each SQUID gradiometer separately on the helmet surface within the vacuum space. Thus, vibrations from the boiling liquid helium and transmission from the transfer tube were both greatly reduced. Magnetic field noise of the 150-channel SQUID gradiometer system showed that the vibration-induced interference peaks are comparable in amplitude to those from a conventional MEG system without helium reliquefaction.

참고문헌 (15)

Okada, Yoshio, Hämäläinen, Matti, Pratt, Kevin, Mascarenas, Anthony, Miller, Paul, Han, Menglai, Robles, Jose, Cavallini, Anders, Power, Bill, Sieng, Kosal, Sun, Limin, Lew, Seok, Doshi, Chiran, Ahtam, Banu, Dinh, Christoph, Esch, Lorenz, Grant, Ellen, Nummenmaa, Aapo, Paulson, Douglas. BabyMEG: A whole-head pediatric magnetoencephalography system for human brain development research. Review of scientific instruments, vol.87, no.9, 094301-.

상세보기
Lee, Y H, Kwon, H, Yu, K K, Kim, J M, Lee, S K, Kim, M-Y, Kim, K. Low-noise magnetoencephalography system cooled by a continuously operating reliquefier. Superconductor science & technology, vol.30, no.8, 084003-.

상세보기
Lee, Y H, Yu, K K, Kwon, H, Kim, J M, Kim, K, Park, Y K, Yang, H C, Chen, K L, Yang, S Y, Horng, H E. A whole-head magnetoencephalography system with compact axial gradiometer structure. Superconductor science & technology, vol.22, no.4, 045023-.

상세보기
Jaszczuk, W, ter Brake, H J M, Flokstra, J, Veldhuis, D, Stammis, R, Rogalla, H. Bonding of a niobium wire to a niobium thin film. Measurement science & technology, vol.2, no.11, 1121-1122.

상세보기
Lee, Y-H, Kwon, H, Kim, J-M, Park, Y-K, Park, J-C. Noise characteristics of double relaxation oscillation superconducting quantum interference devices with reference junction. Superconductor science & technology, vol.12, no.11, 943-945.

상세보기
Vrba, J, Robinson, S E. SQUID sensor array configurations for magnetoencephalography applications. Superconductor science & technology, vol.15, no.9, R51-R89.

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Fujimoto, S., Kazami, K., Takada, Y., Yoshida, T., Ogata, H., Kado, H.. Cooling of SQUIDs using a Gifford-McMahon cryocooler containing magnetic regenerative material to measure biomagnetism. Cryogenics, vol.35, no.2, 143-148.

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Yoshida, Tetsuo, Sata, Ken-ichi, Yoshii, Ken, Kang, Yoon-Myung, Suzuki, Akifumi. A cryocooled 61-channel MEG system. Applied superconductivity, vol.5, no.7, 385-392.

상세보기
Takeda, T., Okamoto, M., Atsuda, K., Katagiri, K.. Performance of a helium circulation system for a MEG. Cryogenics, vol.49, no.3, 144-150.

상세보기
Yu, Kwon Kyu, Lee, Yong Ho, Lee, Seong Joo, Shim, Jeong Hyun, Hwang, Seong min, Kim, Jin Mok, Kwon, Hyuckchan, Kiwoong Kim. Closed-cycle cryocooled SQUID system with superconductive shield for biomagnetism. Superconductor science & technology, vol.27, no.10, 105007-.

상세보기
Adachi, Yoshiaki, Kawabata, Shigenori, Fujihira, Jun-ichi, Uehara, Gen. Multi-Channel SQUID Magnetospinogram System With Closed-Cycle Helium Recondensing. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.27, no.4, 1-4.

상세보기
Adachi, Y., Oyama, D., Kawai, J., Uehara, G., Fujihira, J., Fujihira, H.. Low-Noise Closed-Cycle Helium Recondensing for SQUID Biomagnetic Measurement System. IEEE transactions on applied superconductivity : a publication of the IEEE Superconductivity Committee, vol.26, no.5, 1-4.

상세보기
Responding to The U.S. research community's liquid Helium crisis 2016
10.1002/3527603646
Wang, C., Sun, L., Lichtenwalter, B., Zerkle, B., Okada, Y.. Compact, ultra-low vibration, closed-cycle helium recycler for uninterrupted operation of MEG with SQUID magnetometers. Cryogenics, vol.76, 16-22.

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DOI : 10.1109/TASC.2021.3057001
IEEE : 저널 > 논문

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