INTERNATIONAL FLUENCE RATE INTERCOMPARISON FOR 2.5, 5.0 AND 14 MEV NEUTRONS
Fluence determinations for 2.5, 5.0 and 14 MeV neutrons as performed in standards laboratories have been compared. Two methods of intercomparison were used: One is based on the determination of a gamma rate ratio between 115m-In as induced by fast neutrons in an indium sample on one hand and**51Cr from a calibrated source on the other hand and is used at all energies. The second method is restricted to 14 MeV neutrons and is based on counting induced specific niobium activities. This method delivers at the same time mean neutron energies by comparing ratios of zirconium to niobium activities. Results show that the uncertainty contribution from the transfer methods do not essentially increase the overall uncertainty and that there is generally consistency.
Bibliographic Reference: 5TH SYMPOSIUM ON NEUTRON DOSIMETRY, MUENCHEN- NEUHERBERG (GERMANY), SEPT. 17-21, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31769 ORA
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Record Number: 1989123012300 / Last updated on: 1987-01-01
Available languages: en