Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective
In NMR spectroscopy, the collective measurement is weakly invasive and its back-action is called radiation damping. The aim of this paper is to provide a control-theoretical analysis of the problem of suppressing this radiation damping. It is shown that the two feedback schemes commonly used in the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers
2010
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| Online Access: | http://hdl.handle.net/1721.1/58824 https://orcid.org/0000-0003-3207-594X |
| _version_ | 1826191852413386752 |
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| author | Altafini, C. Cappellaro, Paola Cory, David G. |
| author2 | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Altafini, C. Cappellaro, Paola Cory, David G. |
| author_sort | Altafini, C. |
| collection | MIT |
| description | In NMR spectroscopy, the collective measurement is weakly invasive and its back-action is called radiation damping. The aim of this paper is to provide a control-theoretical analysis of the problem of suppressing this radiation damping. It is shown that the two feedback schemes commonly used in the NMR practice correspond one to a high gain output feedback for the simple case of maintaining the spin 1/2 in its inverted state, and the second to a 2-degree of freedom control design with a prefeedback that exactly cancels the radiation damping field. A general high gain feedback stabilization design not requiring the knowledge of the radiation damping time constant is also investigated. |
| first_indexed | 2024-09-23T09:02:17Z |
| format | Article |
| id | mit-1721.1/58824 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:02:17Z |
| publishDate | 2010 |
| publisher | Institute of Electrical and Electronics Engineers |
| record_format | dspace |
| spelling | mit-1721.1/588242022-09-30T12:58:38Z Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective Altafini, C. Cappellaro, Paola Cory, David G. Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Cory, David G. Cory, David G. Cappellaro, Paola In NMR spectroscopy, the collective measurement is weakly invasive and its back-action is called radiation damping. The aim of this paper is to provide a control-theoretical analysis of the problem of suppressing this radiation damping. It is shown that the two feedback schemes commonly used in the NMR practice correspond one to a high gain output feedback for the simple case of maintaining the spin 1/2 in its inverted state, and the second to a 2-degree of freedom control design with a prefeedback that exactly cancels the radiation damping field. A general high gain feedback stabilization design not requiring the knowledge of the radiation damping time constant is also investigated. 2010-10-01T16:21:45Z 2010-10-01T16:21:45Z 2010-01 Article http://purl.org/eprint/type/JournalArticle 978-1-4244-3871-6 0191-2216 INSPEC Accession Number: 11148284 http://hdl.handle.net/1721.1/58824 Altafini, C., P. Cappellaro, and D. Cory. “Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective.” Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on. 2009. 1445-1450. © 2009 IEEE https://orcid.org/0000-0003-3207-594X en_US http://dx.doi.org/10.1109/CDC.2009.5400761 Proceedings of the 48th IEEE Conference on Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Electrical and Electronics Engineers IEEE |
| spellingShingle | Altafini, C. Cappellaro, Paola Cory, David G. Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title | Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title_full | Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title_fullStr | Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title_full_unstemmed | Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title_short | Feedback schemes for radiation damping suppression in NMR: a control-theoretical perspective |
| title_sort | feedback schemes for radiation damping suppression in nmr a control theoretical perspective |
| url | http://hdl.handle.net/1721.1/58824 https://orcid.org/0000-0003-3207-594X |
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