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Low frequency magnetic resonance conductiivity imaging by means of oscillating gradient fields
Date
2018-06-16
Author
Eroğlu, Hasan Hüseyin
Sadıghı, Mehdı
Eyüboğlu, Behçet Murat
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URI
index.mirasmart.com/ISMRM2018/Login.php
https://hdl.handle.net/11511/80215
https://archive.ismrm.org/2018/2287.html
Conference Name
Int. Society of Magnetic Resonance in Medicine and ESMRM Joint Annual Meeting(2018)
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Department of Electrical and Electronics Engineering, Conference / Seminar
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Low frequency magnetic resonance conductivity imaging by means of oscillating gradient fields
Eroğlu, Hasan Hüseyin; Sadighi, Mehdi; Eyüboğlu, Behçet Murat (null; 2018-06-16)
Recently, low frequency (LF) magnetic resonance electrical conductivity imaging by means of oscillating gradient fields is reported to be infeasible. In thesestudies, LF phase measurements are modeled with radio frequency (RF) leakage due to geometric shifts in MR images. Although RF leakage is related withconductivity, we have not come across a conductivity image reconstructed using this model. In this study, LF conductivity imaging is evaluated for an MRIpulse sequence including multiple gradient pulses. ...
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Low temperature plasma (LTP) is a highly nonequilibrium substance capable of increasing the specific free energy of mass that flows through it. Despite this attractive feature, there are few examples of the transformation of solid material with an equilibrium atomic structure into a material with a nonequilibrium atomic structure. As a proposed example of such a transformation, in this work, it is argued that the transformation of crystalline metal nanoparticles into amorphous metal nanoparticles is feasibl...
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Thermoluminescence (TL) experiments for ternary and quaternary layered single crystals were carried out in 10−300 K temperature range by employing various heating rates between 0.2 and 1.2 K/s. The TL emissions coming from the trapping centers in the studied samples brought out the TL spectra exhibiting peaks at different temperature regions for each crystals. These peaks were taken under consideration to reveal the TL properties of the associated trap levels. Characterizations of defect centers existing in...
Low temperature thermoluminescence behaviour of Y2O3 nanoparticles
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Y2O3 nanoparticles were investigated using low temperature thermoluminescence (TL) experiments. TL glow curve recorded at constant heating rate of 0.4 K/s exhibits seven peaks around 19, 62, 91, 115, 162, 196 and 215 K. Activation energies and characteristics of traps responsible for observed curves were revealed under the light of results of initial rise analyses and T-max-T-stop experimental methods. Analyses of TL curves obtained at different stopping temperatures resulted in presence of one quasi-contin...
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H. H. Eroğlu, M. Sadıghı, and B. M. Eyüboğlu, “Low frequency magnetic resonance conductiivity imaging by means of oscillating gradient fields,” Paris, Fransa, 2018, vol. 26, Accessed: 00, 2021. [Online]. Available: index.mirasmart.com/ISMRM2018/Login.php.