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X-RAY PHOTON [7 records]
Record 1 - internal organization data 2025-01-30
Record 1, English
Record 1, Subject field(s)
- Medical Instruments and Devices
- Tomography
Record 1, Main entry term, English
- scanner gantry
1, record 1, English, scanner%20gantry
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
- gantry 1, record 1, English, gantry
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A scanning unit, also known as a gantry, is the structure that contains the X-ray tube, shielding elements, and photon detectors. The X-ray tube and photon detectors are positioned to face each other and are built to rotate 360 degrees in one direction around the patient. 1, record 1, English, - scanner%20gantry
Record 1, French
Record 1, Domaine(s)
- Instruments et appareillages médicaux
- Tomographie
Record 1, Main entry term, French
- portique
1, record 1, French, portique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- anneau 2, record 1, French, anneau
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La partie la plus importante d'un tomodensitomètre est le portique - un cadre rotatif circulaire avec un tube à rayons X monté d'un côté et un détecteur du côté opposé. 3, record 1, French, - portique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Instrumental médico
- Tomografía
Record 1, Main entry term, Spanish
- pórtico
1, record 1, Spanish, p%C3%B3rtico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 CONT
Angulación del pórtico motorizado por cada posicionamiento. 1, record 1, Spanish, - p%C3%B3rtico
Record 2 - internal organization data 2014-11-25
Record 2, English
Record 2, Subject field(s)
- Radiological Physics (Theory and Application)
- Electromagnetic Radiation
- Radiography (Medicine)
Record 2, Main entry term, English
- photoelectric effect
1, record 2, English, photoelectric%20effect
correct, standardized
Record 2, Abbreviations, English
Record 2, Synonyms, English
- photoelectric absorption 2, record 2, English, photoelectric%20absorption
correct, standardized
- photo effect 4, record 2, English, photo%20effect
correct
- Hertz effect 5, record 2, English, Hertz%20effect
obsolete
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The complete absorption of a photon by an atom with the emission of an orbital electron. 6, record 2, English, - photoelectric%20effect
Record number: 2, Textual support number: 1 CONT
Photoelectric effect, or photoelectric absorption(PEA) is a form of interaction of X-ray or gamma photon with the matter. A low energy photon interacts with the electron in the atom and removes it from its shell.... The incident photon is completely absorbed in the process. Hence it forms one of the reason for attenuation of X-ray beam as it passes through the matter. 3, record 2, English, - photoelectric%20effect
Record number: 2, Textual support number: 1 OBS
Hertz effect: An older term for the photoelectric effect. 5, record 2, English, - photoelectric%20effect
Record number: 2, Textual support number: 2 OBS
photoelectric effect; photoelectric absorption: terms and definition standardized by ISO in 1997. 7, record 2, English, - photoelectric%20effect
Record 2, Key term(s)
- photo-electric effect
- photo-electric absorption
Record 2, French
Record 2, Domaine(s)
- Physique radiologique et applications
- Rayonnements électromagnétiques
- Radiographie (Médecine)
Record 2, Main entry term, French
- effet photoélectrique
1, record 2, French, effet%20photo%C3%A9lectrique
correct, masculine noun, standardized
Record 2, Abbreviations, French
- EPE 2, record 2, French, EPE
masculine noun
Record 2, Synonyms, French
- absorption photoélectrique 3, record 2, French, absorption%20photo%C3%A9lectrique
correct, feminine noun, standardized
- photoeffet 4, record 2, French, photoeffet
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Absorption complète d'un photon par un atome, avec émission d'un électron orbital. 3, record 2, French, - effet%20photo%C3%A9lectrique
Record number: 2, Textual support number: 1 OBS
photoélectrique : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004). 5, record 2, French, - effet%20photo%C3%A9lectrique
Record number: 2, Textual support number: 2 OBS
effet photoélectrique; absorption photoélectrique : termes et définition normalisés par l'ISO en 1997. 6, record 2, French, - effet%20photo%C3%A9lectrique
Record 2, Key term(s)
- effet photo-électrique
- absorption photo-électrique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Física radiológica (Teoría y aplicación)
- Radiación electromagnética
- Radiografía (Medicina)
Record 2, Main entry term, Spanish
- efecto foto-eléctrico
1, record 2, Spanish, efecto%20foto%2Del%C3%A9ctrico
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- efecto fotoeléctrico 2, record 2, Spanish, efecto%20fotoel%C3%A9ctrico
correct, masculine noun
Record 2, Textual support, Spanish
Record 3 - external organization data 2011-10-11
Record 3, English
Record 3, Subject field(s)
- Radiological Physics (Theory and Application)
- Medical Imaging
- Chemistry
- Compartment - Canadian Nuclear Safety Commission
Record 3, Main entry term, English
- Compton effect
1, record 3, English, Compton%20effect
correct, standardized
Record 3, Abbreviations, English
Record 3, Synonyms, English
- Compton scattering 2, record 3, English, Compton%20scattering
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The scattering of an X-ray or gamma ray photon upon impact with an electron within an atom accompanied by transfer of a part of the photon's energy to the electron with consequent loss of frequency. 2, record 3, English, - Compton%20effect
Record number: 3, Textual support number: 1 OBS
Compton effect: term standardized by ISO. 3, record 3, English, - Compton%20effect
Record 3, French
Record 3, Domaine(s)
- Physique radiologique et applications
- Imagerie médicale
- Chimie
- Tiroir - Commission canadienne de sûreté nucléaire
Record 3, Main entry term, French
- effet Compton
1, record 3, French, effet%20Compton
correct, masculine noun, standardized
Record 3, Abbreviations, French
Record 3, Synonyms, French
- effet de Compton 2, record 3, French, effet%20de%20Compton
correct, masculine noun
- diffusion Compton 3, record 3, French, diffusion%20Compton
correct, feminine noun
- diffusion de Compton 4, record 3, French, diffusion%20de%20Compton
feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Processus d'interaction entre matière et rayonnement électromagnétique dû à la diffusion du rayonnement par les électrons des atomes. 5, record 3, French, - effet%20Compton
Record number: 3, Textual support number: 1 OBS
Cette diffusion entraîne une perte d'énergie du photon incident et la différence d'énergie est communiquée à l'électron. 6, record 3, French, - effet%20Compton
Record number: 3, Textual support number: 2 OBS
effet Compton : terme normalisé par l'ISO. 7, record 3, French, - effet%20Compton
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Física radiológica (Teoría y aplicación)
- Radiación (Medicina)
- Química
- Compartimiento - Comisión Canadiense de Seguridad Nuclear
Record 3, Main entry term, Spanish
- efecto Compton
1, record 3, Spanish, efecto%20Compton
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2008-12-19
Record 4, English
Record 4, Subject field(s)
- Radiological Physics (Theory and Application)
Record 4, Main entry term, English
- linear attenuation coefficient
1, record 4, English, linear%20attenuation%20coefficient
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The probability that an X-ray or gamma ray photon will interact with the material it is traversing per unit path length travelled. 1, record 4, English, - linear%20attenuation%20coefficient
Record number: 4, Textual support number: 1 OBS
This value basically accounts for the number of atoms in a cubic cm volume of material and the probability of a photon being scattered or absorbed from the nucleus or an electron of one of these atoms. 2, record 4, English, - linear%20attenuation%20coefficient
Record 4, French
Record 4, Domaine(s)
- Physique radiologique et applications
Record 4, Main entry term, French
- coefficient d'atténuation linéique
1, record 4, French, coefficient%20d%27att%C3%A9nuation%20lin%C3%A9ique
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Le coefficient d'atténuation linéique, ou la probabilité d'interaction par unité de longueur des photons avec un matériau, reflète les différentes interactions élémentaires des photons avec les constituants de la matière. 1, record 4, French, - coefficient%20d%27att%C3%A9nuation%20lin%C3%A9ique
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2003-05-29
Record 5, English
Record 5, Subject field(s)
- Chemistry
Record 5, Main entry term, English
- photon excitation
1, record 5, English, photon%20excitation
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
- photonic excitation 2, record 5, English, photonic%20excitation
correct
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
Photon excitation :X-ray emission induced by the impact of charged particles other than electrons, for example alpha particles, was discovered by Chadwick in 1912. High energy(1. 5 MeV) photons are associated with large cross-sections for ionization and very low backgrounds, two ideal conditions for very low detection limits that effectively reach 10[ upperscript-11]-10[ upperscript-12](g) for elements with Z > 15. On account of this high absolute sensitivity, photon excitation is used with Si(Li) detectors in many applications dealing with the simultaneous determination of trace elements in water, serum, blood and tissues. 1, record 5, English, - photon%20excitation
Record 5, French
Record 5, Domaine(s)
- Chimie
Record 5, Main entry term, French
- excitation photonique
1, record 5, French, excitation%20photonique
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Fluorescence : Luminescence produite à partir d'un état singulet, très bref, excité électroniquement. Cette luminescence se produit après disparition de la source d'excitation (excitation photonique, souvent UV). 2, record 5, French, - excitation%20photonique
Record number: 5, Textual support number: 2 CONT
La thérapeutique photo-dynamique dans le cancer bronchique précoce. [...] Sous l'action d'une lumière adaptée à la molécule, ce photo-sensibilisateur devient actif et toxique. L'excitation photonique permet de transférer l'énergie vers l'oxygène ambiant qui prend alors la forme d'oxygène singulé. Cet oxygène est extrêmement réactif et toxique et oxyde tous les constituants tissulaires situés à son contact. 3, record 5, French, - excitation%20photonique
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1998-01-29
Record 6, English
Record 6, Subject field(s)
- Chemistry
Record 6, Main entry term, English
- X-ray intensity
1, record 6, English, X%2Dray%20intensity
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record number: 6, Textual support number: 1 OBS
Essentially all X-ray measurements are made by photon counting techniques but the results are seldom converted to radiant flux or irradiance or radiant exposure. The term photon flux would be appropriate if the measurements were corrected for detector efficiency but this is seldom done for X-ray chemical analysis. Therefore the term X-ray intensity, is commonly used and expressed as photons/unit time detected. 1, record 6, English, - X%2Dray%20intensity
Record 6, French
Record 6, Domaine(s)
- Chimie
Record 6, Main entry term, French
- intensité des rayons x
1, record 6, French, intensit%C3%A9%20des%20rayons%20x
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 OBS
Essentiellement, toutes les mesures de rayonnements x sont faites au moyen de techniques de comptage des photons; toutefois, les résultats sont rarement convertis en flux de radiation ou en irradiance ou en exposition à la radiation. L'expression «flux photonique» serait appropriée si les mesures étaient corrigées pour l'efficacité du détecteur, mais ceci est rarement fait pour l'analyse chimique des rayonnements x. On utilise donc couramment l'expression «intensité des rayons x», et cette intensité est exprimée en photons détectés par unité de temps. 1, record 6, French, - intensit%C3%A9%20des%20rayons%20x
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1998-01-29
Record 7, English
Record 7, Subject field(s)
- Chemistry
Record 7, Main entry term, English
- relative X-ray intensity
1, record 7, English, relative%20X%2Dray%20intensity
correct
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 OBS
Essentially all X-ray measurements are made by photon counting techniques but the results are seldom converted to radiant flux or irradiance or radiant exposure. The term photon flux would be appropriate if the measurements were corrected for detector efficiency but this is seldom done for X-ray chemical analysis.... the term relative X-ray intensity, is used to mean the intensity for the analyte in an unknown specimen divided by the intensity for a known concentration of the analyte element. 1, record 7, English, - relative%20X%2Dray%20intensity
Record 7, French
Record 7, Domaine(s)
- Chimie
Record 7, Main entry term, French
- intensité relative des rayons x
1, record 7, French, intensit%C3%A9%20relative%20des%20rayons%20x
correct, feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record number: 7, Textual support number: 1 OBS
Essentiellement, toutes les mesures de rayonnements x sont faites au moyen de techniques de comptage des photons; toutefois, les résultats sont rarement convertis en flux de radiation ou en irradiance ou en exposition à la radiation. L'expression «flux photonique» serait appropriée si les mesures étaient corrigées pour l'efficacité du détecteur, mais ceci est rarement fait pour l'analyse chimique des rayonnements x. [...] on utilise l'expression «intensité relative des rayons x», pour un produit à analyser contenu dans un échantillon divisé par l'intensité pour une concentration connue de l'élément à analyser. 1, record 7, French, - intensit%C3%A9%20relative%20des%20rayons%20x
Record 7, Spanish
Record 7, Textual support, Spanish
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