dorsal/arxiv
View SchemaHigh nuclear polarization of helium-3 at low and high pressure by metastability exchange optical pumping at 1.5 Tesla
| Authors | Marie Abboud, Alice Sinatra, Xavier Maitre, Genevieve Tastevin, Pierre-Jean Nacher |
|---|---|
| Categories | |
| ArXiv ID | physics/0307154 |
| URL | https://arxiv.org/abs/physics/0307154 |
| DOI | 10.1209/epl/i2004-10237-y |
| Journal | Europhysics Letters 68 (2004) 480 |
Abstract
We perform metastability exchange optical pumping of helium-3 in a strong magnetic field of 1.5 T. The achieved nuclear polarization, from 80% at 1.33 mbar to 25% at 67 mbar, shows a substantial improvement at high pressures with respect to standard low-field optical pumping. The specific mechanisms of metastability exchange optical pumping at high field are investigated, advantages and intrinsic limitations are discussed. From a practical point of view, our results open the way to alternative technological solutions for polarized helium-3 applications and in particular for magnetic resonance imaging of human lungs.
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"abstract": "We perform metastability exchange optical pumping of helium-3 in a strong\nmagnetic field of 1.5 T. The achieved nuclear polarization, from 80% at 1.33\nmbar to 25% at 67 mbar, shows a substantial improvement at high pressures with\nrespect to standard low-field optical pumping. The specific mechanisms of\nmetastability exchange optical pumping at high field are investigated,\nadvantages and intrinsic limitations are discussed. From a practical point of\nview, our results open the way to alternative technological solutions for\npolarized helium-3 applications and in particular for magnetic resonance\nimaging of human lungs.",
"arxiv_id": "physics/0307154",
"authors": [
"Marie Abboud",
"Alice Sinatra",
"Xavier Maitre",
"Genevieve Tastevin",
"Pierre-Jean Nacher"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1209/epl/i2004-10237-y",
"journal_ref": "Europhysics Letters 68 (2004) 480",
"title": "High nuclear polarization of helium-3 at low and high pressure by metastability exchange optical pumping at 1.5 Tesla",
"url": "https://arxiv.org/abs/physics/0307154"
},
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