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HELIUM 3 [6 records]
Record 1 - internal organization data 2009-11-18
Record 1, English
Record 1, Subject field(s)
- Scientific Instruments
- Radiological Physics (Theory and Application)
Record 1, Main entry term, English
- hellium3 detector
1, record 1, English, hellium3%20detector
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- ³He detector 2, record 1, English, %C2%B3He%20detector
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
³He detectors have higher efficiency because of high neutron absorption cross-section for thermal neutrons and higher possible fill pressures up to 4 atm. 1, record 1, English, - hellium3%20detector
Record 1, Key term(s)
- helium-3 detector
- helium 3 detector
Record 1, French
Record 1, Domaine(s)
- Instruments scientifiques
- Physique radiologique et applications
Record 1, Main entry term, French
- détecteur à hélium 3
1, record 1, French, d%C3%A9tecteur%20%C3%A0%20h%C3%A9lium%203
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- détecteur à ³He 2, record 1, French, d%C3%A9tecteur%20%C3%A0%20%C2%B3He
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les détecteurs à ³He sont, de loin, les plus utilisés pour les mesures neutroniques passives et actives, car ils présentent une excellente efficacité de détection tout en étant relativement insensibles aux rayonnements gamma. 2, record 1, French, - d%C3%A9tecteur%20%C3%A0%20h%C3%A9lium%203
Record 1, Key term(s)
- détecteur à hélium-3
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-12-04
Record 2, English
Record 2, Subject field(s)
- Geophysics
- Geochemistry
Record 2, Main entry term, English
- geocorona
1, record 2, English, geocorona
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Atmospheric layer consisting mainly of helium and hydrogen at an altitude of from 600 to 3, 000 km. 1, record 2, English, - geocorona
Record 2, French
Record 2, Domaine(s)
- Géophysique
- Géochimie
Record 2, Main entry term, French
- géocouronne
1, record 2, French, g%C3%A9ocouronne
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Partie de la distribution d'hydrogène atomique H dans l'atmosphère terrestre. 2, record 2, French, - g%C3%A9ocouronne
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-04-12
Record 3, English
Record 3, Subject field(s)
- Atomic Physics
Record 3, Main entry term, English
- helium-4
1, record 3, English, helium%2D4
correct
Record 3, Abbreviations, English
- 4He 2, record 3, English, 4He
correct
Record 3, Synonyms, English
- helium 4 3, record 3, English, helium%204
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The thought experiments are concerned with the behavior of two types of helium atoms, denoted3</sup>He and4He. These two types differ only in the nature of their nuclei. The3</sup>He nucleus contains two protons and one neutron, whereas the4He nucleus contains two protons and two neutrons. 4, record 3, English, - helium%2D4
Record number: 3, Textual support number: 2 CONT
The goal of the project at the VU is to reach BEC with helium-4 atoms in the metastable 2 [superscript 3S state (He). 5, record 3, English, - helium%2D4
Record 3, French
Record 3, Domaine(s)
- Physique atomique
Record 3, Main entry term, French
- hélium-4
1, record 3, French, h%C3%A9lium%2D4
correct, masculine noun
Record 3, Abbreviations, French
- He 4 2, record 3, French, He%204
correct
Record 3, Synonyms, French
- hélium 4 3, record 3, French, h%C3%A9lium%204
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
L'hélium existe en deux isotopes : l'hélium-4 (4He) est l'isotope courant, représentant pratiquement 100% de l'hélium naturel. Son noyau comporte deux protons et deux neutrons (un nombre pair de nucléons) de sorte que l'atome est un boson. 1, record 3, French, - h%C3%A9lium%2D4
Record number: 3, Textual support number: 2 CONT
Propriétés de l'He4. 4, record 3, French, - h%C3%A9lium%2D4
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física atómica
Record 3, Main entry term, Spanish
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 CONT
[...] dos clases de átomos de helio:3He y4He, que se distinguen por la naturaleza de sus núcleos. El núcleo de3He contiene dos protones y un neutrón; el de4He, dos protones y dos neutrones. Ambos núcleos poseen, pues, el mismo número de protones, lo que indica que presentarán la misma carga eléctrica. 1, record 3, Spanish, - 4He
Record 4 - internal organization data 2001-04-12
Record 4, English
Record 4, Subject field(s)
- Atomic Physics
Record 4, Main entry term, English
- helium-3
1, record 4, English, helium%2D3
correct
Record 4, Abbreviations, English
- 3He 2, record 4, English, 3He
correct
Record 4, Synonyms, English
- helium 3 3, record 4, English, helium%203
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
The thought experiments are concerned with the behavior of two types of helium atoms, denoted3</sup>He4He. These two types differ only in the nature of their nuclei. The3</sup>He nucleus contains two protons and one neutron, whereas the4He nucleus contains two protons and two neutrons. 4, record 4, English, - helium%2D3
Record 4, French
Record 4, Domaine(s)
- Physique atomique
Record 4, Main entry term, French
- hélium 3
1, record 4, French, h%C3%A9lium%203
correct, masculine noun
Record 4, Abbreviations, French
- He 2, record 4, French, He
correct
Record 4, Synonyms, French
- hélium-3 3, record 4, French, h%C3%A9lium%2D3
correct, masculine noun
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
L'autre isotope est l'hélium-3 (3He) qui ne comprend qu'un seul neutron et deux protons, de sorte que l'atome d'hélium-3 (3)He est un fermion. L'hélium-3 est très rare (un atome sur un million) et s'obtient en pratique de la désintégration du tritium, isotope instable de l'hydrogène utilisé principalement dans les [...] armes nucléaires. 4, record 4, French, - h%C3%A9lium%203
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Física atómica
Record 4, Main entry term, Spanish
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record number: 4, Textual support number: 1 CONT
[...] dos clases de átomos de helio:3He y4He, que se distinguen por la naturaleza de sus núcleos. El núcleo de3He contiene dos protones y un neutrón; el de4He, dos protones y dos neutrones. Ambos núcleos poseen, pues, el mismo número de protones, lo que indica que presentarán la misma carga eléctrica. 1, record 4, Spanish, - 3He
Record 5 - external organization data 2000-02-10
Record 5, English
Record 5, Subject field(s)
- Chemistry
- Nuclear Physics
- Compartment - Canadian Nuclear Safety Commission
Record 5, Main entry term, English
- deuterium
1, record 5, English, deuterium
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- heavy hydrogen 2, record 5, English, heavy%20hydrogen
correct
- D 3, record 5, English, D
correct
- ²H 3, record 5, English, %C2%B2H
correct
- H² 3, record 5, English, H%C2%B2
- D 3, record 5, English, D
Record 5, Textual support, English
Record number: 5, Textual support number: 1 DEF
The isotope of hydrogen that has atoms of twice the mass of ordinary light hydrogen atoms, that occurs naturally in very small amounts in water, and that is used in nuclear reactions and as a tracer in chemical and biological investigations - called also heavy hydrogen; symbol D, H² or ²H. 3, record 5, English, - deuterium
Record number: 5, Textual support number: 2 DEF
An isotope of hydrogen having the mass number 2. 4, record 5, English, - deuterium
Record number: 5, Textual support number: 1 CONT
Tritium(Hydrogen 3)... emits beta particles and decays into Helium 3. It is constantly being produced in the upper atmosphere and in all lakes, rivers, and oceans by the capture of cosmic rays by atoms of Deuterium(Hydrogen 2), a naturally occurring isotope of hydrogen. 5, record 5, English, - deuterium
Record 5, French
Record 5, Domaine(s)
- Chimie
- Physique nucléaire
- Tiroir - Commission canadienne de sûreté nucléaire
Record 5, Main entry term, French
- deutérium
1, record 5, French, deut%C3%A9rium
correct, masculine noun
Record 5, Abbreviations, French
- D 2, record 5, French, D
correct
Record 5, Synonyms, French
- hydrogène lourd 3, record 5, French, hydrog%C3%A8ne%20lourd
correct, masculine noun
- deutohydrogène 4, record 5, French, deutohydrog%C3%A8ne
masculine noun, obsolete
- diphogène 4, record 5, French, diphog%C3%A8ne
masculine noun, obsolete
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Isotope de l'hydrogène, de symbole D, dit aussi hydrogène lourd. 2, record 5, French, - deut%C3%A9rium
Record number: 5, Textual support number: 1 CONT
Le deutérium accompagne l'hydrogène présent dans la nature à l'état pur ou dans l'eau [...] En dehors de son emploi comme modérateur sous forme d'eau lourde, le deutérium est utilisé [...] dans la synthèse de composés organiques pour les études par traceurs. 5, record 5, French, - deut%C3%A9rium
Record 5, Spanish
Record 5, Campo(s) temático(s)
- Química
- Física nuclear
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 5, Main entry term, Spanish
- deuterio
1, record 5, Spanish, deuterio
correct, masculine noun
Record 5, Abbreviations, Spanish
- D 2, record 5, Spanish, D
correct
- H² 3, record 5, Spanish, H%C2%B2
Record 5, Synonyms, Spanish
- hidrógeno pesado 4, record 5, Spanish, hidr%C3%B3geno%20pesado
correct, masculine noun
Record 5, Textual support, Spanish
Record number: 5, Textual support number: 1 DEF
Isótopo del hidrógeno cuya masa o peso atómico es de aproximadamente 2. 5, record 5, Spanish, - deuterio
Record 6 - internal organization data 1995-06-27
Record 6, English
Record 6, Subject field(s)
- Astrochemistry and Cosmochemistry
- Astronomy
- Geochemistry
Record 6, Main entry term, English
- proton-proton chain
1, record 6, English, proton%2Dproton%20chain
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- p-p chain 2, record 6, English, p%2Dp%20chain
correct
- proton-proton cycle 3, record 6, English, proton%2Dproton%20cycle
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
The nuclear process that powers the sun. It involves the fusion of nuclei in 3 kinds of collisions. The cycle starts for any one proton when it collides with another. This collision produces a deuterium nucleus, a neutrino that shoots off into space and a position that eventually annihilates a stray electron. Next, the deuterium nucleus is hit by another proton, producing a nucleus of helium-3 and a burst of gamma rays. The helium-3 hits another helium-3, producing a nucleus of inert helium and two protons. These 2 protons now start the proton-proton cycle over again. 4, record 6, English, - proton%2Dproton%20chain
Record number: 6, Textual support number: 1 CONT
Deep within the sun a series of nuclear reactions called the proton-proton chain converts hydrogen (protons) into helium by merging sets of 4 hydrogen nuclei into one helium nucleus (alpha particle). 4, record 6, English, - proton%2Dproton%20chain
Record 6, French
Record 6, Domaine(s)
- Astrochimie et cosmochimie
- Astronomie
- Géochimie
Record 6, Main entry term, French
- cycle proton-proton
1, record 6, French, cycle%20proton%2Dproton
correct, masculine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
- chaîne proton-proton 2, record 6, French, cha%C3%AEne%20proton%2Dproton
correct, feminine noun
- chaîne P-P 3, record 6, French, cha%C3%AEne%20P%2DP
correct, feminine noun
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
La chaîne proton-proton ne comporte que 3 étapes. Le premier mécanisme est celui des étoiles chaudes, le second celui des étoiles froides. Dans le soleil à la jonction des 2 types d'étoiles, les 2 régimes doivent fonctionner simultanément. Environ 638 millions de tonnes d'hydrogène sont transformés par seconde, dont 0.6 p. 100 est libéré sous forme d'énergie; à ce rythme, la perte de masse par seconde est de 3,83 millions de tonnes. 2, record 6, French, - cycle%20proton%2Dproton
Record number: 6, Textual support number: 2 CONT
Mais il fallut attendre 1937-1938 avant que la connaissance empirique des sections efficaces de capture ait suffisamment progressé pour permettre à Von Weizsacker et à Bethe d'isoler enfin les deux réactions responsables de la génération d'énergie dans la majorité des étoiles, la chaîne proton-proton et le cycle du carbone, toutes deux transformant quatre protons en un noyau d'hélium; mais par des processus différents. 2, record 6, French, - cycle%20proton%2Dproton
Record number: 6, Textual support number: 3 CONT
Au centre du Soleil, à 15 millions de degrés, c'est le cycle proton-proton qui est le plus efficace et contribue à l'émission d'énergie pour environ 90 p. 100. 1, record 6, French, - cycle%20proton%2Dproton
Record 6, Spanish
Record 6, Textual support, Spanish
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