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FOCALISATION GRADIENTS ALTERNES [2 records]
Record 1 - internal organization data 2005-10-06
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
Record 1, Main entry term, English
- quadruple lens
1, record 1, English, quadruple%20lens
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- quadruple magnet 2, record 1, English, quadruple%20magnet
correct
- four-pole magnet 2, record 1, English, four%2Dpole%20magnet
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A device for focusing beams of charged particles which has four electrodes or magnetic poles of alternating sign arranged in a circle about the beam; used in instruments such as electron microscopes and particle accelerators. 1, record 1, English, - quadruple%20lens
Record 1, French
Record 1, Domaine(s)
- Physique atomique
Record 1, Main entry term, French
- lentille quadripolaire
1, record 1, French, lentille%20quadripolaire
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- électro-aimant à quatre pôles 1, record 1, French, %C3%A9lectro%2Daimant%20%C3%A0%20quatre%20p%C3%B4les
correct, masculine noun
- électroaimant à quatre pôles 2, record 1, French, %C3%A9lectroaimant%20%C3%A0%20quatre%20p%C3%B4les
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
[...] la focalisation forte à gradients alternés, récemment découverte, a été appliquée aux accélérateurs linéaires, et leur construction en exploite maintenant largement le principe [...] Dans chaque tube de glissement est disposé un électro-aimant à quatre pôles, appelé lentille quadripolaire. Par une disposition et une orientation convenables des champs magnétiques de ces lentilles, il est possible d’obtenir un effet focalisant extrêmement intense tel que, pratiquement, la focalisation ne provoque la perte d’aucune particule. 1, record 1, French, - lentille%20quadripolaire
Record number: 1, Textual support number: 1 OBS
électroaimant : Cette graphie, puisée des Rectifications de l’orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004). 2, record 1, French, - lentille%20quadripolaire
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1990-07-23
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Electromagnetism
Record 2, Main entry term, English
- alternating-gradient focusing
1, record 2, English, alternating%2Dgradient%20focusing
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- alternating-gradient focusing 1, record 2, English, alternating%2Dgradient%20focusing
correct
- strong-focusing 2, record 2, English, strong%2Dfocusing
correct, less frequent
- strong focusing 3, record 2, English, strong%20focusing
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A configuration of transverse electric or magnetic fields suitable for focusing or confining a charged-particle beam in which successive magnets or electrodes (in time or along the beam direction) have opposite polarity. 4, record 2, English, - alternating%2Dgradient%20focusing
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Électromagnétisme
Record 2, Main entry term, French
- focalisation par alternance de gradients
1, record 2, French, focalisation%20par%20alternance%20de%20gradients
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- focalisation à gradients alternés 2, record 2, French, focalisation%20%C3%A0%20gradients%20altern%C3%A9s
correct, feminine noun
- focalisation à gradient alterné 3, record 2, French, focalisation%20%C3%A0%20gradient%20altern%C3%A9
correct, feminine noun
- focalisation forte 4, record 2, French, focalisation%20forte
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Focalisation forte. (...) si l’on construit un champ dans lequel n prend alternativement des valeurs positives et négatives assez grandes, permettant ainsi à la particule qui y parcourt une orbite circulaire de rayon r d’y rencontrer successivement des secteurs dans lesquels le champ magnétique la focalise dans un plan horizontal, et la défocalise verticalement, et des secteurs où c’est l’inverse qui se produit, il peut en résulter une action nettement focalisatrice tant radialement que le long des lignes du champ. Cette focalisation est connue sous le nom de "focalisation à gradient alterné" (A.G.). 3, record 2, French, - focalisation%20par%20alternance%20de%20gradients
Record number: 2, Textual support number: 2 CONT
La découverte, en 1950, de la focalisation forte, dite à gradients alternés, a facilité la construction des grands accélérateurs circulaires. 2, record 2, French, - focalisation%20par%20alternance%20de%20gradients
Record 2, Spanish
Record 2, Textual support, Spanish
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