Bibliographic Details
| Title: |
Breakdown of Carr-Purcell Meiboom-Gill spin echoes in inhomogeneous fields |
| Authors: |
Jarenwattananon, Nanette N., Bouchard, Louis-S. |
| Publication Year: |
2018 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Other Condensed Matter, Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: |
The Carr-Purcell Meiboom-Gill (CPMG) experiment has been used for decades to measure nuclear-spin transverse ($T_2$) relaxation times. In the presence of magnetic-field inhomogeneities, the limit of short interpulse spacings yields the intrinsic $T_2$ time. Here we show that the signal decay in such experiments exhibits fundamentally different behaviors between liquids and gases. In gases, CPMG unexpectedly fails to eliminate the inhomogeneous broadening due to the non-Fickian nature of the motional averaging. |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/1803.10413 |
| Accession Number: |
edsarx.1803.10413 |
| Database: |
arXiv |
