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MOMENT QUADRUPOLAIRE [4 records]
Record 1 - internal organization data 2011-12-22
Record 1, English
Record 1, Subject field(s)
- Electromagnetic Radiation
Record 1, Main entry term, English
- quadrupole moment
1, record 1, English, quadrupole%20moment
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- quadripole moment 2, record 1, English, quadripole%20moment
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The moment derived from the series expansion of charges multiplied by space co-ordinates. 3, record 1, English, - quadrupole%20moment
Record number: 1, Textual support number: 1 CONT
The sum of the quadratic terms is the quadrupole moment, which is possessed by most metals. 3, record 1, English, - quadrupole%20moment
Record 1, French
Record 1, Domaine(s)
- Rayonnements électromagnétiques
Record 1, Main entry term, French
- moment quadrupolaire
1, record 1, French, moment%20quadrupolaire
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- moment quadripolaire 2, record 1, French, moment%20quadripolaire
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La résonance quadrupolaire nucléaire est basée sur le comportement d’une molécule, contenant un noyau quadrupolaire comme l'azote-14, soumis à un champ radio-fréquence. On appelle noyaux quadrupolaires les noyaux dont le spin est supérieur à 1/2. L'azote-14, naturellement présent à plus de 99 % a un nombre de spin égal à 1 […] Tous les noyaux de spin supérieur à 1/2 sont dits quadrupolaires en raison de la distribution de leurs charges électriques(positives). Contrairement aux noyaux possédant un spin 1/2, cette distribution de charge n’ est plus de symétrie sphérique et peut être schématisée par une ellipsoïde. Il en résulte que le noyau en question porte un moment électrique qui n’ est pas un moment dipolaire mais un moment quadrupolaire qui peut être figuré […] par une répartition de quatre charges ponctuelles, égales deux à deux. 3, record 1, French, - moment%20quadrupolaire
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2010-11-16
Record 2, English
Record 2, Subject field(s)
- Electromagnetic Radiation
Record 2, Main entry term, English
- nuclear quadrupole moment
1, record 2, English, nuclear%20quadrupole%20moment
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The electric quadrupole moment of an atomic nucleus. 2, record 2, English, - nuclear%20quadrupole%20moment
Record 2, Key term(s)
- nuclear quadripole moment
Record 2, French
Record 2, Domaine(s)
- Rayonnements électromagnétiques
Record 2, Main entry term, French
- moment quadrupolaire nucléaire
1, record 2, French, moment%20quadrupolaire%20nucl%C3%A9aire
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- moment quadripolaire nucléaire 2, record 2, French, moment%20quadripolaire%20nucl%C3%A9aire
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Moment quadrupolaire électrique d’un noyau atomique. 3, record 2, French, - moment%20quadrupolaire%20nucl%C3%A9aire
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-11-03
Record 3, English
Record 3, Subject field(s)
- Atomic Physics
Record 3, Main entry term, English
- electric quadrupole moment
1, record 3, English, electric%20quadrupole%20moment
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- electric quadruple momentum 2, record 3, English, electric%20quadruple%20momentum
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The nuclear electric quadrupole moment is a parameter which describes the effective shape of the ellipsoid of nuclear charge distribution. A non-zero quadrupole moment Q indicates that the charge distribution is not spherically symmetric. By convention, the value of Q is taken to be positive if the ellipsoid is prolate and negative if it is oblate. 1, record 3, English, - electric%20quadrupole%20moment
Record 3, French
Record 3, Domaine(s)
- Physique atomique
Record 3, Main entry term, French
- moment quadrupolaire électrique
1, record 3, French, moment%20quadrupolaire%20%C3%A9lectrique
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les constituants du noyau, protons et neutrons, se meuvent à l'intérieur du noyau atomique et possèdent des caractéristiques électromagnétiques. Cela a pour conséquence l'existence de moments angulaires associés aux nucléons et au noyau pris dans son ensemble. [...]-le moment quadrupolaire électrique Q. L'existence de ce moment s’explique par la déformation des noyaux : en règle générale, la distribution de charge(protons) dans le noyau n’ a pas une symétrie parfaitement sphérique(auquel cas le moment Q serait nul). Autrement dit, à une distribution de protons asymétrique correspond un moment quadrupolaire électrique Q positif ou négatif. 1, record 3, French, - moment%20quadrupolaire%20%C3%A9lectrique
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2002-04-29
Record 4, English
Record 4, Subject field(s)
- Spacecraft
Record 4, Main entry term, English
- Mercury orbiter
1, record 4, English, Mercury%20orbiter
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record 4, French
Record 4, Domaine(s)
- Engins spatiaux
Record 4, Main entry term, French
- orbiteur de Mercure
1, record 4, French, orbiteur%20de%20Mercure
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
La connaissance précise des paramètres orbitaux de l'orbiteur de Mercure permettra d’effectuer de nouveaux tests de la relativité générale, et de mesurer avec précision le moment quadrupolaire du soleil ainsi que la variation temporelle de la constante gravitationnelle. 2, record 4, French, - orbiteur%20de%20Mercure
Record 4, Spanish
Record 4, Textual support, Spanish
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