Naslov
NMR Noise Spectroscopy: The Influence of Matching and Cable Lengths

Autori
Müller, Norbert ; Schlagnitweit, Judith ; Nausner, Martin ; Jerschow, Alexej ; Bendet-Taicher, Eli ; Desvaux, Hervé ; Morgan, Steven ; Smrečki, Vilko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
52nd Experimental Nuclear Magnetic Resonance Conference / Emsley, Lyndon - Santa Fe (NM) : ENC Conference, 2011, 29-29

Skup
52nd Experimental Nuclear Magnetic Resonance Conference

Mjesto i datum
Pacific Grove (CA), Sjedinjene Američke Države, 10.04.2011. - 15.04.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
NMR spin noise

Sažetak
NMR noise spectra can be separated into pure spin noise and absorbed circuit noise (ACN) contributions. The complex tuning dependence of NMR noise spectra can be attributed mostly to ACN. A symmetrical dip line shape of a noise signal can be used as an indicator for optimum receiving conditions: the spin noise tuning optimum - SNTO. We have mapped the line shapes of noise signals upon systematic variation of the matching adjustments, cable lengths and circuit tuning. On most probes we found more than one SNTO - dip. One can not only optimize for the receiving situation but also find conditions, where both pulse excitation and receiving properties are optimal, i.e. the conventional tuning optimum and the SNTO coincide.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA