Updated 20 October 2020
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Among a dozen physical phenomena exploited to measure magnetic field strength, NMR (nuclear magnetic resonance) is by far the most accurate. In addition NMR magnetometers are immune to temperature- or age-related drift. For these reasons they are widely used as a reference for calibrating other magnetometers, such as the common Hall gaussmeter. However due to technological constraints their use beyond calibration has been limited to research and a few industrial applications.
This short, virtual seminar will explain the basics of NMR technologies, materials and measurements, with an example application in medical imaging.
EVENT PLATFORM
The seminar will be hosted on hopin because it offers an intuitive online conference experience. As well as the talks on the Stage, at any time you can
- visit and talk with exhibitors in the Expo,
- set up small Sessions to talk together,
- search for and Invite delegates you want to speak to through the People list,
- Chat to the whole event, a session or an exhibitor’s booth,
- Ask questions of speakers and the whole event via Chat,
- examine the event Schedule in Reception for any changes,
- try the random delegate connection of Networking (an online version of standing in the queue for coffee and talking to the person behind you).
CONTINUING CONTACT / GDPR
Please note, by providing contact details during registration, you authorise us to
- use these contact details to let you know details of this event, and
- add your contact details to our contact database to let you know about future events that may be of interest.
Please let us know at enquiries@ukmagsoc.org at any time if you do not wish to be contacted in this way. Also, we can remove you from our contact schedule at any point in the future.
SPONSORS
Magnetic field traceability using NMR
by Stuart Harmon of NPL
At NPL, the UK’s National Measurement Institute, traceability not only underpins the core capabilities for the measurements we supply to industry today but also the research activities that support future measurement challenges. The starting point for the majority of field generating systems is the reliance on NMR/ESR and proton resonance-based systems to provide the lowest uncertainties, be that for field measuring instruments and sensors or materials research. In this talk, I will outline the traceability routes for magnetic field strength at NPL and how this feeds into our on-going research aims.
Understanding reaction pathways in low-temperature ethanol dehydration using operando solid-state NMR
by Marina Carravetta of University of Southampton
The development of suitable catalysts that can operate at low temperatures is important for industrial processes to reduce production costs and environmental impact. A clear understanding of the reaction mechanism is essential for the design of new catalysts. We demonstrate here that operando NMR techniques can effectively be utilised to obtain both the reaction pathways and kinetics of low temperature ethylene production at the actual operating conditions of the catalysts and these information can aid the design of improved catalysts.
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NMR Magnetometers
by Philip Keller of Metrolab
NMR magnetometers are the “gold standard” for measuring magnetic field strength: they can achieve unparalleled resolution (10 parts per billion) and they are free of nonlinearity, temperature drift, and aging effects. These characteristics make them the preferred tool to map high-uniformity magnets, to guarantee absolutely repeatable field strengths, and to calibrate other magnetometers, notably Hall systems. In this talk, we will review their principle of operation and describe some of the latest developments, including fast field mapping with NMR, high-speed NMR measurements, and low-field NMR measurements.
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