Optimized slim-line logging NMR tool to measure soil moisture in situ
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| Title: | Main Title: Optimized slim-line logging NMR tool to measure soil moisture in situ |
| Description: | Abstract: We report the optimization of a slim-line logging NMR tool carried out by maximizing the signal-to-noise ratio of the NMR measurements. The tool, based on cylindrical permanent magnets of 20 cm length and 5 cm diameter, has a penetration depth of about 2 cm measured from its surface. This is obtained thanks to a large radio frequency coil whose dimensions are comparable to the sensor size. An analytical expression of the SNR as a function of parameters which take into account the interaction between the radio frequency coil and the magnet shielding is developed. In view of the external constrains such as the one imposed by the excavation hole, a proper tool size is determined in the optimization process. Due to its size and properties, the sensor is suitable to measure water content in the vadose zone, which is the zone comprised within the first meters of the Earth surface and whose study is important for improving water management in agriculture and for refining climate models. |
| Identifier: | 10.1016/j.jmr.2013.05.004 (DOI) |
Responsible Party
| Creators: | Juan Perlo (Author), Ernesto Danieli (Author), Bernhard Blümich (Author), Federico Casanova (Author) |
| Publisher: | Elsevier B.V |
| Publication Year: | 2013 |
Topic
| TR32 Topic: | Soil |
| Related Subproject: | A1 |
| Subjects: | Keywords: NMR, Soil Moisture |
File Details
| Filename: | 2013_Perlo_JMR.pdf |
| Data Type: | Text - Article |
| Size: | 6 Pages |
| File Size: | 1.2 MB |
| Date: | Available: 20.05.2013 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | For internal use only |
| Access Limitations: | For internal use only |
| Licence: | [TR32DB] Data policy agreement |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Journal of Magnetic Resonance |
| Source Website: | www.elsevier.com/locate/jmr |
| Volume: | 233 |
| Number of Pages: | 6 (74 - 79) |
Metadata Details
| Metadata Creator: | Markus Küppers |
| Metadata Created: | 10.12.2013 |
| Metadata Last Updated: | 10.12.2013 |
| Subproject: | A1 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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Dataset Statistics
| Page Visits: | 788 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 3 |
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