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Square Loop Coil System for Balancing and Calibration of Second-Order SQUID Gradiometers
- Soon-Gul Lee, C. Kang, Jungwon Chang
- PhysicsIEEE Transactions on Applied Superconductivity
- 23 July 2007
We have designed and fabricated a uniaxial square- loop coil system to calibrate second-order SQUID gradiometers. The coil system consists of 2 pairs of identical square loops, the first pair which…
Evaluation of cancellation coil for precision magnetic measurements with strong prepolarization field inside shielded environment
- Seong-min Hwang, Kiwoong Kim, C. Kang, S. Lee, Yong-Ho Lee
- Physics
- 27 April 2012
Many precision magnetic measurements can benefit significantly from or even require strong prepolarization fields (Bp) and magnetically shielded environments. We describe here in detail a…
Development of Metallic Magnetic Calorimeters with a Critical Temperature Switch
- So Ra Kim, J. Choi, Yong Hamb Kim
- Physics
- 1 February 2016
We report on the progress in the development of meander-shaped metallic magnetic calorimeters (MMCs) with a critical temperature switch. A niobium meander-shaped coil in an MMC is arranged to form a…
Toward a brain functional connectivity mapping modality by simultaneous imaging of coherent brainwaves
- Kiwoong Kim, S. Lee, C. Kang, Seong-min Hwang, Yong-Ho Lee, Kwon-Kyu Yu
- PhysicsNeuroImage
- 1 May 2014
Effective cancellation of residual magnetic interference induced from a shielded environment for precision magnetic measurements
- Seong-min Hwang, Kiwoong Kim, C. Kang, S. Lee, Yong-Ho Lee
- Physics
- 26 September 2011
Using the method of inverse problem, we designed a cancellation coil that prevents a strong pulsed magnetic field inside a magnetically shielded room (MSR) from magnetizing and inducing large-scale…
Application of metallic magnetic calorimeter in rare event search
- In-Wha Kim, H. Jo, J. So
- Physics
- 9 August 2017
Metallic magnetic calorimeters (MMCs) are highly sensitive temperature sensors that use the paramagnetic nature of erbium in a metallic host and superconducting electronics usually composed of a…
Superconducting nanobridge made from YBa2Cu3O7 film by using focused ion beam
- Soon-Gul Lee, Soo-Ho Oh, C. Kang, Sang‐Jae Kim
- Physics
- 1 September 2007
Pre-polarization enhancement by dynamic nuclear polarization in SQUID-based ultra-low-field nuclear magnetic resonance
- S. Lee, Kiwoong Kim, C. Kang, Seong-min Hwang, Yong-Ho Lee
- Physics
- 1 November 2010
We achieved enhanced pre-polarization in a superconducting quantum interference device (SQUID)-based microtesla nuclear magnetic resonance (NMR) experiment by using dynamic nuclear polarization…
Measurement of MCG in Unshielded Environment Using a Second-Order SQUID Gradiometer
In this paper, we fabricated a low-TC second-order superconducting quantum interference device gradiometer (SQUID) to measure magnetocardiography (MCG) in unshielded environment. The second-order…
Application of the double relaxation oscillation superconducting quantum interference device sensor to micro-tesla 1H nuclear magnetic resonance experiments
- C. Kang, Kiwoong Kim, Yong-Ho Lee
- Physics
- 8 September 2011
We developed an ultra-low field (ULF)-nuclear magnetic resonance (NMR) measurement system capable of working with a measurement field (Bm) of several micro-tesla and performed basic NMR studies with…
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