Optical pumping and MRI of hyperpolarized Spins

Xizeng Wu; Thomas Nishino; Hong Liu

doi:10.1201/b17289

Optical pumping and MRI of hyperpolarized Spins

Xizeng Wu, Thomas Nishino, Hong Liu

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

Ironically, the nuclear spin polarizations at these high magnetic elds are really tiny because thermal spin polarizations are determined by the Boltzmann factor e-hµ/kBT, where T is the temperature and ? the magnetic transition frequency. Here h (6.6266 × 10-34 J/s) is Planck’s constant and kB (1.38 × 10-23 J/K) is Boltzmann’s constant. e magnetic transition frequencies are radio frequencies (RF) and range from 108 to 109 Hz in MRI. e resulting polarizations are approximately 10-6 to 10-5 only.

Original language	English (US)
Title of host publication	Biomedical Photonics Handbook, Second Edition
Subtitle of host publication	Biomedical Diagnostics
Publisher	CRC Press
Pages	453-482
Number of pages	30
ISBN (Electronic)	9781420085150
ISBN (Print)	9781420085143
DOIs	https://doi.org/10.1201/b17289
State	Published - Jan 1 2014
Externally published	Yes

ASJC Scopus subject areas

General Medicine
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
General Engineering

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10.1201/b17289

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title = "Optical pumping and MRI of hyperpolarized Spins",

abstract = "Ironically, the nuclear spin polarizations at these high magnetic elds are really tiny because thermal spin polarizations are determined by the Boltzmann factor e-hµ/kBT, where T is the temperature and ? the magnetic transition frequency. Here h (6.6266 × 10-34 J/s) is Planck{\textquoteright}s constant and kB (1.38 × 10-23 J/K) is Boltzmann{\textquoteright}s constant. e magnetic transition frequencies are radio frequencies (RF) and range from 108 to 109 Hz in MRI. e resulting polarizations are approximately 10-6 to 10-5 only.",

author = "Xizeng Wu and Thomas Nishino and Hong Liu",

note = "Publisher Copyright: {\textcopyright} 2015 by Taylor & Francis Group, LLC.",

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doi = "10.1201/b17289",

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AB - Ironically, the nuclear spin polarizations at these high magnetic elds are really tiny because thermal spin polarizations are determined by the Boltzmann factor e-hµ/kBT, where T is the temperature and ? the magnetic transition frequency. Here h (6.6266 × 10-34 J/s) is Planck’s constant and kB (1.38 × 10-23 J/K) is Boltzmann’s constant. e magnetic transition frequencies are radio frequencies (RF) and range from 108 to 109 Hz in MRI. e resulting polarizations are approximately 10-6 to 10-5 only.

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Optical pumping and MRI of hyperpolarized Spins

Abstract

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