The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Feb. 23, 2012
Simone Ulzega, Duebendorf, CH;
Veronika Vitzthum, Pully, CH;
Geoffrey Bodenhausen, Paris, FR;
Marc Anthony Caporini, Cambridge, MA (US);
Simone Ulzega, Duebendorf, CH;
Veronika Vitzthum, Pully, CH;
Geoffrey Bodenhausen, Paris, FR;
Marc Anthony Caporini, Cambridge, MA (US);
Bruker BioSpin AG, Faellanden, CH;
Ecole Polytechnique Fédéral de Lausanne (EPFL), Lausanne, CH;
Abstract
A method for performing magnetic resonance spectroscopy on solid samples containing nuclei of interest with spin quantum number I subjects the sample to a static magnetic field. The sample is spun at the magic angle and broad-band excitation of transverse magnetization of the nuclei of interest is effected by applying a first train of rotor-synchronized rf-pulses, having a carrier frequency, to the nuclei of interest with a pulse duration 0.1 μs<τ<2 μs, the first train of rf-pulses comprising k·n pulses extending over k rotor periods τwith n pulses per rotor period τ, wherein n is an integer n>1. Uniform excitation of a great number of spinning sidebands or families of sidebands that arise from large first-order quadrupole or hyperfine interactions is enabled and signal intensity is thereby improved.