{
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"@type": "ScholarlyArticle",
"@id": "https://doi.org/10.5281/zenodo.1203333",
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"value": "https://zenodo.org/record/1203333"
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"url": "https://zenodo.org/record/1203333",
"additionalType": "Preprint",
"name": "209Bi Quadrupole Relaxation Enhancement In Solids As A Step Towards New Contrast Mechanisms In Magnetic Resonance Imaging",
"author": [
{
"name": "Kruk Danuta"
},
{
"name": "Umut Evrim",
"givenName": "Umut",
"familyName": "Evrim",
"affiliation": {
"@type": "Organization",
"name": "University of Warmia and Mazury, Faculty of Mathematics and Computer Science"
},
"@type": "Person"
},
{
"name": "Elzbieta Masiewicz"
},
{
"name": "Carina Sampl",
"givenName": "Carina",
"familyName": "Sampl",
"affiliation": {
"@type": "Organization",
"name": "Graz University of Technology, Institute for Chemistry and Technology of Materials"
},
"@type": "Person"
},
{
"name": "Roland Fischer",
"givenName": "Roland",
"familyName": "Fischer",
"affiliation": {
"@type": "Organization",
"name": "Graz University of Technology, Institute for Chemistry and Technology of Materials"
},
"@type": "Person"
},
{
"name": "Stefan Spirk",
"givenName": "Stefan",
"familyName": "Spirk",
"affiliation": {
"@type": "Organization",
"name": "Graz University of Technology, Institute for Chemistry and Technology of Materials"
},
"@type": "Person"
},
{
"name": "Christian Gösweiner",
"givenName": "Christian",
"familyName": "Gösweiner",
"affiliation": {
"@type": "Organization",
"name": "Graz University of Technology, Institute of Medical Engineering"
},
"@type": "Person"
},
{
"name": "Hermann Scharfetter",
"givenName": "Hermann",
"familyName": "Scharfetter",
"affiliation": {
"@type": "Organization",
"name": "Graz University of Technology, Institute of Medical Engineering"
},
"@type": "Person"
}
],
"description": "Motivated by the possibility of exploiting species containing high spin quantum number
\nnuclei (referred to as quadrupole nuclei) as novel contrast agents for Magnetic Resonance
\nImaging, based on Quadrupole Relaxation Enhancement (QRE) effects, 1H spin-lattice
\nrelaxation has been investigated for tris(2-methoxyphenyl)bismuthane and tris(2,6-
\ndimethoxyphenyl)bismuthane in powder. The relaxation experiment has been performed in
\nthe magnetic field range of 0.5 T to 3 T (the upper limit corresponds to the field used in many
\nmedical scanners). A very rich QRE pattern (several frequency specific 1H spin-lattice
\nrelaxation rate maxima) has been observed for both compounds. Complementary Nuclear
\nQuadrupole Resonance experiments have been performed in order to determine the
\nquadrupole parameters (quadrupole coupling constant and asymmetry parameters) for 209Bi.
\nKnowing the parameters, the QRE pattern has been explained on the basis of a quantummechanical
\npicture of the system including single and double-quantum coherences for the
\nparticipating nuclei (1H and 209Bi). In this way the quantum-mechanical origin of the spintransitions leading to the QRE effects has been explained.",
"license": [
"https://creativecommons.org/licenses/by/4.0",
"info:eu-repo/semantics/openAccess"
],
"datePublished": "2018-03-19",
"schemaVersion": "http://datacite.org/schema/kernel-4",
"publisher": {
"@type": "Organization",
"name": "Zenodo"
},
"funder": {
"@id": "https://doi.org/10.13039/501100000780",
"@type": "Organization",
"name": "European Commission"
},
"provider": {
"@type": "Organization",
"name": "datacite"
}
}