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NUCLEAR CROSS-SECTION [5 records]
Record 1 - internal organization data 2014-06-05
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
- Nuclear Power Stations
Record 1, Main entry term, English
- activation cross-section
1, record 1, English, activation%20cross%2Dsection
correct, standardized
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A cross-section for the formation of a radionuclide by a specified nuclear reaction. 1, record 1, English, - activation%20cross%2Dsection
Record number: 1, Textual support number: 1 OBS
activation cross-section: term and definition standardized by ISO. 2, record 1, English, - activation%20cross%2Dsection
Record 1, French
Record 1, Domaine(s)
- Physique atomique
- Centrales nucléaires
Record 1, Main entry term, French
- section efficace d'activation
1, record 1, French, section%20efficace%20d%27activation
correct, feminine noun, standardized
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Section efficace relative à la formation d'un radionucléide par une réaction nucléaire. 1, record 1, French, - section%20efficace%20d%27activation
Record number: 1, Textual support number: 1 OBS
section efficace d'activation : terme et définition normalisés par l'ISO. 2, record 1, French, - section%20efficace%20d%27activation
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2012-01-09
Record 2, English
Record 2, Subject field(s)
- Nuclear Physics
- Nuclear Fission Reactors
Record 2, Main entry term, English
- resonance self-shielding
1, record 2, English, %20resonance%20self%2Dshielding
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
In a nuclear reactor, a situation allowing slowed-down neutrons to avoid a cross-section resonance range. 2, record 2, English, - %20resonance%20self%2Dshielding
Record number: 2, Textual support number: 1 CONT
The flux depression and resonance self-shielding are important factors in deterministic transport theory, and need to be taken into account when cross sections are condensed into discrete energy groups … It should also be noted that resonance self-shielding is a phenomenon that does not present itself to individual neutrons. The collective flux depression effect is consistently taken into account in the simulation without additional procedures. 3, record 2, English, - %20resonance%20self%2Dshielding
Record number: 2, Textual support number: 2 CONT
… resonance self-shielding is rigorously calculated, for all fission products, through effective cross-section formalism. 4, record 2, English, - %20resonance%20self%2Dshielding
Record 2, Key term(s)
- resonance self shielding
Record 2, French
Record 2, Domaine(s)
- Physique nucléaire
- Réacteurs nucléaires de fission
Record 2, Main entry term, French
- autoprotection des résonances
1, record 2, French, autoprotection%20des%20r%C3%A9sonances
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Phénomène permettant aux neutrons ralentis dans un réacteur d’éviter un domaine de résonance de section efficace. 2, record 2, French, - autoprotection%20des%20r%C3%A9sonances
Record number: 2, Textual support number: 1 OBS
Les discontinuités locales, brusques et parfois importantes, des propriétés neutroniques de la matière nucléaire sont dues, pour l’essentiel, à la nature résonnante des sections efficaces microscopiques des isotopes et à la distribution spatiale des matériaux. La prise en compte, fidèle et précise, de ces variations n’est possible actuellement que dans les calculs probabilistes, qui admettent une description continue des propriétés énergétiques et spatiales des milieux. Dans les calculs déterministes, ces inhomogénéités sont lissées, en espace et en énergie, dans les processus de mise en groupes et d’homogénéisation des sections efficaces. 3, record 2, French, - autoprotection%20des%20r%C3%A9sonances
Record 2, Key term(s)
- auto-protection des résonances
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-06-08
Record 3, English
Record 3, Subject field(s)
- Nuclear Waste Materials
- Atomic Physics
Record 3, Main entry term, English
- transmutation product
1, record 3, English, transmutation%20product
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Interaction of d-T neutrons and their product particles with the various reactor materials gives a broad range of transmutation products most of which are unstable and subsequently decay by emission of y[gamma]-rays, ß-particles or weak X-rays. 1, record 3, English, - transmutation%20product
Record number: 3, Textual support number: 2 CONT
Nuclear and atomic data for radiation damage calculations and helium and other transmutation product cross-section determinations in high energy neutron fields. 1, record 3, English, - transmutation%20product
Record number: 3, Textual support number: 1 OBS
transmutation: A nuclear process in which one nuclide is transformed into the nuclide of a different element. 2, record 3, English, - transmutation%20product
Record 3, French
Record 3, Domaine(s)
- Déchets nucléaires
- Physique atomique
Record 3, Main entry term, French
- produit de transmutation
1, record 3, French, produit%20de%20transmutation
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Critères de sélection des matériaux absorbants. Viennent ensuite [...] la nature des produits de transmutation : s'ils sont également absorbants (cas du hafnium et des terres rares), la durée de vie des barres de commande est allongée (cas du Hf et du Dy); si un gaz est créé (cas de l'hélium dans le bore), cette durée est diminuée à cause de la dégradation mécanique qui en résulte [...] 2, record 3, French, - produit%20de%20transmutation
Record number: 3, Textual support number: 1 OBS
Transmutation [...] veut dire recyclage des déchets dans des réacteurs de façon à les transformer en déchets radioactifs de courte période [...] 3, record 3, French, - produit%20de%20transmutation
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2003-04-30
Record 4, English
Record 4, Subject field(s)
- Cytology
- Biotechnology
Record 4, Main entry term, English
- chromosome break
1, record 4, English, chromosome%20break
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
- chromosomal break 2, record 4, English, chromosomal%20break
correct
- chromosomal breakage 3, record 4, English, chromosomal%20breakage
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
Any discontinuity in chromosome structure occurring across the entire cross-section of the chromosome; chromosome breaks are either of spontaneous occurrence or are produced by the action of mutagens. They are recognizable during nuclear division(mitosis, meiosis) and lead to the formation of centric and acentric fragments. 2, record 4, English, - chromosome%20break
Record number: 4, Textual support number: 1 OBS
Discontinuities which involve only one of the two chromatids or subunits of the chromatids are referred to as chromatid and subchromatid breaks. 2, record 4, English, - chromosome%20break
Record 4, French
Record 4, Domaine(s)
- Cytologie
- Biotechnologie
Record 4, Main entry term, French
- cassure chromosomique
1, record 4, French, cassure%20chromosomique
correct, feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
- fracture chromosomique 1, record 4, French, fracture%20chromosomique
correct, feminine noun
- rupture chromosomique 1, record 4, French, rupture%20chromosomique
correct, feminine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Les aberrations de structure sont la conséquence de cassures chromosomiques. Une cassure unique provoque la perte d'un fragment chromosomique : il y a délétion. Un cassure double sur un même chromosome peut entraîner la formation d'un chromosome en anneau qui résulte d'une cassure à chaque extrémité du chromosome suivie par la soudure des deux surfaces de section; ce chromosome en anneau équivaut à une double délétion. Si la cassure double intéresse deux chromosomes différents, les fragments rompus peuvent se recoller après échange réciproque et reconstituer des structures nouvelles : c'est une translocation. 1, record 4, French, - cassure%20chromosomique
Record 4, Key term(s)
- division du chromosome
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Citología
- Biotecnología
Record 4, Main entry term, Spanish
- división del cromosoma
1, record 4, Spanish, divisi%C3%B3n%20del%20cromosoma
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1976-06-19
Record 5, English
Record 5, Subject field(s)
- Atomic Physics
Record 5, Main entry term, English
- nuclear cross-section 1, record 5, English, nuclear%20cross%2Dsection
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, French
Record 5, Domaine(s)
- Physique atomique
Record 5, Main entry term, French
- section efficace d'un noyau 1, record 5, French, section%20efficace%20d%27un%20noyau
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record 5, Spanish
Record 5, Textual support, Spanish
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