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Title: | Metrological characterization of nuclear magnetic resonance markers for real-time field control of the CERN ELENA ring dipoles |
Authors: | Grech, Christian Avramidou, Rachel Beaumont, Anthony Buzio, Marco Sammut, Nicholas Tinembart, Jacques |
Keywords: | Magnetic fields -- Measurement Nuclear magnetic resonance Particle accelerators Magnetic levitation vehicles |
Issue Date: | 2018 |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Citation: | Grech, C., Avramidou, R., Beaumont, A., Buzio, M., Sammut, N., & Tinembart, J. (2018). Metrological characterization of nuclear magnetic resonance markers for real-time field control of the CERN ELENA ring dipoles. IEEE Sensors Journal, 18(14), 5826-5833. |
Abstract: | Field markers in particle accelerators are used to provide a digital trigger when the magnetic field reaches a pre-set threshold. This paper describes the results of a test campaign performed on the extra low energy antiproton decelerator's main bending dipoles at the European Organization for Nuclear Research (CERN) investigating the behavior of nuclear magnetic resonance (NMR) markers in ramping fields. Following the conclusions of an off-line study using a spare dipole, a series of tests performed on the reference magnet powered in series with the ring showed an NMR signal with a reproducibility better than 9μT at field levels lower than 47 mT, using slow ramp rates. This is promising for the real-time field control of the decelerator. For a high-field marker using high ramp rates, the reproducibility of the signal was found to be better than 3μT. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/58719 |
Appears in Collections: | Scholarly Works - FacICTMN |
Files in This Item:
File | Description | Size | Format | |
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Metrological_characterization_of_nuclear_magnetic_resonance_markers_for_real_time_field_control.pdf Restricted Access | 2.95 MB | Adobe PDF | View/Open Request a copy |
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