Noise model of the cryogenic nuclear magnetic resonance spectroscopy system's receiving chain

Znanstveni rad - Izvorni znanstveni rad

• Autor: Petar Kolar
• Autor: Lovro Blažok
• Autor: Dario Bojanjac
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

One of the challenges in modern nuclear magnetic resonance (NMR) is achieving its highest possible measuring sensitivity. This is because modern NMR samples' response signals decrease, so background noise of the used NMR spectroscopy system causes bigger problems. As a solution, both software and hardware interventions were applied. However, these improvements were obtained experimentally, so the reason for their proper operation and upper limit is usually unknown. Recently, a noise model of the NMR spectroscopy system, which shows both the reason for proper operation and the upper limit of the applied improvements, was introduced. A Javascript-based calculator, based on the introduced model, has been developed and made available online as a user-friendly website that can be run on the most commonly used Internet browsers. To the authors' knowledge, this calculator is the first of its kind that analyses noise properties in NMR. Using it, one can a priori make both sensitivity prediction of practical NMR systems in physics and material science and quantitative analysis of its noise properties. Consequently, overall measurement duration can be shortened down to one half of the current duration. This is an immense improvement, as some modern NMR measurements consume more than ten hours per measurement.

• Ključne riječi (engleski): NMR spectroscopy; noise figure; model; sensitivity enhancement; Python; Javascript
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Automatika
• Brojčani podaci: vol. 63, br. 3, str. 474-481
• p-ISSN: 0005-1144
• e-ISSN: 1848-3380
• DOI: https://doi.org/10.1080/00051144.2022.2052649
• URN:NBN: urn:nbn:hr:217:835277
• Datum objave publikacije: 2022-03-18
• URL dokumenta: https://www.tandfonline.com/doi/full/10.1080/00051144.2022.2052649
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Received 23 June 2020; Accepted 7 March 2022; Published online: 18 Mar 2022.
• Datum i vrijeme pohrane: 2024-08-09 19:18:53