Revisiting NMR composite pulses for broadband 2 H excitation
نویسندگان
چکیده
منابع مشابه
Arbitrary precision composite pulses for NMR quantum computing.
We discuss the implementation of arbitrary precision composite pulses developed using the methods of Brown et al. [K.R. Brown, A.W. Harrow, I.L. Chuang, Arbitrarily accurate composite pulse sequences, Phys. Rev. A 70 (2004) 052318]. We give explicit results for pulse sequences designed to tackle both the simple case of pulse length errors and the more complex case of off-resonance errors. The r...
متن کاملExploring the limits of broadband excitation and inversion pulses.
The design of broadband excitation and inversion pulses with compensation of B(1)-field inhomogeneity is a long standing goal in high resolution NMR spectroscopy. Most optimization procedures used so far have been restricted to particular pulse families to keep the scale of the problem within manageable limits. This restriction is unnecessary using efficient numerical algorithms based on optima...
متن کاملComposite pulses for efficient excitation of half-integer quadrupolar nuclei in NMR of static and spinning solid samples
0009-2614/$ see front matter 2012 Elsevier B.V. A doi:10.1016/j.cplett.2012.01.058 Abbreviations: CT, central transition; ST, satel quantum coherence; TQC, triple-quantum coherence. ⇑ Corresponding author. E-mail address: [email protected] (D. Carne Composite pulses of the type ðspÞxð2spÞ xð3spÞx allow one to excite the central transition of nuclei with half-integer spin with enhanced eff...
متن کاملBroadband Excitation and Detection of Cross-Relaxation NMR Spectra
Nuclear magnetic resonance cross-relaxation spectroscopy maps the proton solidstate NMR spectrum onto the proton water NMR signal of aqueous heterogeneous materials ( Z-3). Application of a relatively long, low-intensity RF pulse, off resonance from the water Larmor frequency but within the linewidth of the solid, partially saturates the nuclear magnetism of the solid protons. Magnetic cross re...
متن کاملComposite Slice-Selective 90' Excitation Pulses with Adiabaticity
Slice-selective adiabatic pulses are mostly confined to spin inversion and refocusing pulses. Here composite slice-selective 90" excitation pulses capable of multi-slice applications are proposed. This new class of pulses are based on halved adiabatic MIP pulses with each segment of the halved MIP pulses replaced by a small flip angle slice-selective plane rotation pulse such as a hamming-filte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solid State Nuclear Magnetic Resonance
سال: 2015
ISSN: 0926-2040
DOI: 10.1016/j.ssnmr.2014.12.004