scholarly journals Investigation of current density, magnetic flux density, and ohmic losses for single-veined, Litz and foil structured conductors at different frequencies

2013 ◽  
Vol 19 (5) ◽  
pp. 195-200
Author(s):  
Serdal Arslan ◽  
Ilhan Tarimer ◽  
Mehmet Emin Guven
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Magnetic Flux Density ◽  
Ohmic Losses

Magnetic design and modelling of a 14 mm-period prototype superconducting undulator

2017 ◽  
Vol 24 (2) ◽  
pp. 422-428 ◽  
Author(s):  
G. Mishra ◽  
Mona Gehlot ◽  
Geetanjali Sharma ◽  
Frederic Trillaud
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Phase Error ◽  
Analytical Formula ◽  
Magnetic Flux Density

The magnetic design of a ten-period (each period 14 mm) prototype superconducting undulator is reported using RADIA. The results of modelling the magnetic flux density are presented in an analytical formula. The dependence of the field integrals and phase error on the current density and undulator gap has been calculated, and temperature curves are determined for the models and are compared with earlier reported Moser–Rossmanith fits.

scholarly journals Current Density Imaging Using Directly Measured HarmonicBzData in MREIT

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Chunjae Park ◽  
Oh In Kwon
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Background Field ◽  
Magnetic Flux Density ◽  
Reconstruction Procedure ◽  
Phantom Experiment ◽  
Impedance Tomography ◽  
Space Data

Magnetic resonance electrical impedance tomography (MREIT) measures magnetic flux density signals through the use of a magnetic resonance imaging (MRI) in order to visualize the internal conductivity and/or current density. Understanding the reconstruction procedure for the internal current density, we directly measure the second derivative ofBzdata from the measuredk-space data, from which we can avoid a tedious phase unwrapping to obtain the phase signal ofBz. We determine optimal weighting factors to combine the derivatives of magnetic flux density data,∇2Bz, measured using the multi-echo train. The proposed method reconstructs the internal current density using the relationships between the induced internal current and the measured∇2Bzdata. Results from a phantom experiment demonstrate that the proposed method reduces the scanning time and provides the internal current density, while suppressing the background field inhomogeneity. To implement the real experiment, we use a phantom with a saline solution including a balloon, which excludes other artifacts by any concentration gradient in the phantom.

scholarly journals Fourier transform magnetic resonance current density imaging (FT-MRCDI) from one component of magnetic flux density

2010 ◽  
Vol 55 (11) ◽  
pp. 3177-3199 ◽  
Author(s):  
Yusuf Ziya Ider ◽  
Ozlem Birgul ◽  
Omer Faruk Oran ◽  
Orhan Arikan ◽  
Mark J Hamamura ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Magnetic Resonance ◽  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Magnetic Flux Density ◽  
Current Density Imaging ◽  
Resonance Current

Analysis of local projected current density from one component of magnetic flux density in MREIT

2013 ◽  
Vol 29 (7) ◽  
pp. 075001 ◽  
Author(s):  
Hyung Joong Kim ◽  
Saurav Z K Sajib ◽  
Woo Chul Jeong ◽  
Myoung Nyoun Kim ◽  
Oh In Kwon ◽  
...  
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Magnetic Flux Density

ELECTRODEPOSITED CoNiFe ALLOY THIN FILMS FOR MAGNETIC RECORDING

2006 ◽  
Vol 05 (04n05) ◽  
pp. 605-610 ◽  
Author(s):  
DINESH K. PANDYA ◽  
YAJVENDRA KUMAR ◽  
SUBHASH C. KASHYAP ◽  
SUJEET CHAUDHARY
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Ternary System ◽  
Magnetic Flux ◽  
Flux Density ◽  
Current Density ◽  
Binary Systems ◽  
Magnetic Flux Density ◽  
Bath Composition ◽  
Galvanostatic Mode

Alloy thin films of ternary system Co – Ni – Fe and binary systems Co – Fe , Co – Ni and Ni – Fe consisting of ~50 nm grains have been deposited by a simple and industrially viable technique of electrodeposition in galvanostatic mode on ITO-coated glass. Bath composition and current density have been varied to prepare films of different compositions and thus, in turn, obtain suitable composition for better magnetic properties. Further, an attempt has been made to deposit films in the presence of Mg 2+ in the bath and to study its linkage with the magnetic properties, i.e., saturation magnetic flux density, BS, and coercivity, HC. Our results clearly demonstrate that addition of Mg 2+ ions in the bath helps in increasing the BS considerably.

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