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SHIELDED-EMITTER NEUTRON DETECTOR [1 record]
Record 1 - internal organization data 2009-09-09
Record 1, English
Record 1, Subject field(s)
- Measuring Instruments (Engineering)
- Nuclear Fission Reactors
Record 1, Main entry term, English
- shielded-emitter neutron detector
1, record 1, English, shielded%2Demitter%20neutron%20detector
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- shielded self-powered neutron detector 2, record 1, English, shielded%20self%2Dpowered%20neutron%20detector
proposal
- shielded SPND 2, record 1, English, shielded%20SPND
proposal
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A self-powered neutron detector has a neutron-sensitive emitter, a collector enclosing this emitter and insulation between these two components. When irradiated by neutrons, the emitter generates Compton electrons so that a current is produced between the emitter and electrode and which may be used with a current-measuring device to provide a readout. The emitter is enclosed and electrically connected with a metal which is substantially neutron-insensitive so that the detector provides a substantially true and prompt signal accurately reflecting the neutron flux density received by the detector. 1, record 1, English, - shielded%2Demitter%20neutron%20detector
Record 1, French
Record 1, Domaine(s)
- Instruments de mesure (Ingénierie)
- Réacteurs nucléaires de fission
Record 1, Main entry term, French
- collectron chemisé
1, record 1, French, collectron%20chemis%C3%A9
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
développement de collectrons chemisés [...] Le CEA [Commissariat à l'énergie atomique] a travaillé sur les collectrons cobalt, qui sont intrinsèquement rapides, et a cherché à diminuer l'influence des rayonnements b et g incidents [...]. Pour ce faire, l'émetteur est chemisé avec un matériau de revêtement en acier. De plus ce chemisage joue le rôle d'écran vis-à-vis des électrons parasites nés dans l'émetteur : sa masse surfacique est calculée pour absorber les rayonnements b de faible énergie et ne laisser passer que les électrons prompts qui sont à haute énergie. 1, record 1, French, - collectron%20chemis%C3%A9
Record 1, Spanish
Record 1, Textual support, Spanish
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