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Résumé

The neutron detection heads often use metal pipes filled up with compressed 3-He gas. It is important to check the performance of these components. The behaviour is of a proportional type. The multiplication factor for the primary ionisation is a function of the high voltage and brings about the amplitude of the impulsions. It is possible to characterize an 3-He counter in two ways: by its flat curve which describes the change of counting rate with the change of the high voltage. by its amplitude spectrum which describes the change of the counting rate with the change of the amplitude impulsions. An HP-85 computer with suitable interfaces plots automatically these two models of curves.

Informations supplémentaires

Auteurs: BERNEDE M, JRC ISPRA ESTAB. (ITALY);HAURIE Y, JRC ISPRA ESTAB. (ITALY);TOURNEIX J JRC ISPRA ESTAB. (ITALY), JRC ISPRA ESTAB. (ITALY)
Références bibliographiques: EUR 9314 FR (1984) MF, 28 P., BFR 120, BLOW-UP COPY BFR 150, EUROFFICE, LUXEMBOURG, POB 1003
Disponibilité: Can be ordered online