TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
BRUIT PHOTONIQUE [2 records]
Record 1 - internal organization data 2025-01-28
Record 1, English
Record 1, Subject field(s)
- Medical Imaging
Record 1, Main entry term, English
- quantum noise
1, record 1, English, quantum%20noise
correct, noun
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
[The] randomness of image or projection measurements owing to defective counting of the number of photons emitted. 2, record 1, English, - quantum%20noise
Record 1, French
Record 1, Domaine(s)
- Imagerie médicale
Record 1, Main entry term, French
- bruit quantique
1, record 1, French, bruit%20quantique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- bruit photonique 1, record 1, French, bruit%20photonique
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
[...] le bruit photonique ou bruit quantique [...] correspond au phénomène de fluctuation quantique des photons X et se trouve dans l'image radiante, il devient apparent à faibles doses et prépondère au niveau des structures les plus denses [...] 1, record 1, French, - bruit%20quantique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Radiación (Medicina)
Record 1, Main entry term, Spanish
- ruido cuántico
1, record 1, Spanish, ruido%20cu%C3%A1ntico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- ruido fotónico 1, record 1, Spanish, ruido%20fot%C3%B3nico
correct, masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Proceso estocástico (aleatorio) subyacente que, al combinarse con la señal, produce el ruido de disparo fotónico, característico de la naturaleza discreta de los fotones. 1, record 1, Spanish, - ruido%20cu%C3%A1ntico
Record 2 - internal organization data 2010-12-09
Record 2, English
Record 2, Subject field(s)
- Atomic Physics
- Nuclear Waste Materials
Record 2, Main entry term, English
- photoneutron background noise
1, record 2, English, photoneutron%20background%20noise
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
… neutron counters … can serve as monitors for the photoneutron background noise and permit an on-line measurement of the parasitic signal. Thus, a careful choice of the moderator thicknesses enables these detectors to collect a considerable proportion of the internal parasitic photoneutrons. A proportionality coefficient leads to knowledge of the background noise occurring in the useful delayed signal measuring unit. The thus measured parasitic signal can be subtracted from the useful signal during data processing. Measurements can also take place with a single series of detectors located in the inner moderator coating. 1, record 2, English, - photoneutron%20background%20noise
Record 2, French
Record 2, Domaine(s)
- Physique atomique
- Déchets nucléaires
Record 2, Main entry term, French
- bruit de fond photoneutronique
1, record 2, French, bruit%20de%20fond%20photoneutronique
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
[…] l'énergie photonique optimale pour provoquer la réaction de photofission est aux alentours de 16 MeV [mégaélectron-volts], ce qui présuppose une énergie du faisceau d’électrons d’environ 20 MeV [mégaélectron-volts]. Malheureusement, à cette énergie d’électrons un bruit de fond neutronique commence à être généré. Ce bruit de fond provient de la réaction des photons sur l'isotope180 qui donne naissance à des neutrons différés qui interfèrent avec le signal retardé de photofission. 1, record 2, French, - bruit%20de%20fond%20photoneutronique
Record 2, Spanish
Record 2, Textual support, Spanish
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