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1. (WO2017032696) GENERATION OF RF SIGNALS FOR EXCITATION OF NUCLEI IN MAGNETIC RESONANCE SYSTEMS
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Pub. No.: WO/2017/032696 International Application No.: PCT/EP2016/069665
Publication Date: 02.03.2017 International Filing Date: 19.08.2016
IPC:
G01R 33/36 (2006.01) ,G01R 33/38 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
32
Excitation or detection systems, e.g. using radiofrequency signals
36
Electrical details, e.g. matching or coupling of the coil to the receiver
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
38
Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
Applicants:
KONINKLIJKE PHILIPS N.V. [NL/NL]; High Tech Campus 5 5656 AE Eindhoven, NL
Inventors:
LEUSSLER, Christoph; NL
VERNICKEL, Peter; NL
Agent:
COHEN, Julius Simon; NL
DE HAAN, Poul Erik; NL
Priority Data:
15181933.121.08.2015EP
Title (EN) GENERATION OF RF SIGNALS FOR EXCITATION OF NUCLEI IN MAGNETIC RESONANCE SYSTEMS
(FR) GÉNÉRATION DE SIGNAUX RF POUR L'EXCITATION DE NOYAUX DANS DES SYSTÈMES À RÉSONANCE MAGNÉTIQUE
Abstract:
(EN) The invention provides for a system (200) for generation of a radio frequency, RF, excitation signal for excitation of nuclei via an RF excitation coil (114) in a magnetic resonance system (100). The system comprises power generation units (203-206) each comprising a synthesizer (211-214), an RF amplifier (231-234), and a first feedback loop (251-254) unit adapted to configure the synthesizer to generate an RF signal which after amplification by the RF amplifier has a predefined first signal characteristic and a combiner (261) adapted for combining the RF signals amplified by the RF amplifiers for obtaining the RF excitation signal.
(FR) L'invention concerne un système (200) pour la génération d'un signal d'excitation radiofréquence, RF, pour l'excitation de noyaux par l'intermédiaire d'une bobine d'excitation RF (114) dans un système à résonance magnétique (100). Le système comprend des unités de génération de puissance (203 à 206) comprenant chacune un synthétiseur (211 à 214), un amplificateur RF (231 à 234), et une première unité de boucle de rétroaction (251 à 254) conçue pour configurer le synthétiseur pour qu'il génère un signal RF qui, après amplification par l'amplificateur RF, présente une première caractéristique de signal prédéfinie et un combineur (261) conçu pour combiner les signaux RF amplifiés par les amplificateurs RF pour obtenir le signal d'excitation RF.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)