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ECN publicatie:
Titel:
Neutron metrology in the HFR: steel irradiation R287-03 (CHARIOT-03)
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN NUCLEAIR 1-6-1998
 
ECN publicatienummer: Publicatie type:
ECN-I--98-027 Overig
 
Aantal pagina's: Volledige tekst:
50  Niet beschikbaar.

Samenvatting:
The experiment R287 (CHARIOT) is part of a material program to testferritic-martensitic stainless steel of different types and has been irradiated in the HFR Petten. In this report the final metrology results obtained from activation monitors in the specimen holder, coded as R287-03, and irradiated in a TRIO type capsule in HFR position G7, are presented. Data about the helium production as well as the number of displacements per atom are included. The aim of the irradiation of specimen holder R287-03 was to reach a target damage level of approximately 2.5 dpa for the loaded specimens at a temperature of 300C. The main results of the thermal and fast neutron fluence measurements, indicate that the obtained damage levels in the steel specimens loaded in this specimen holder range from 2.3 to 3.7 dpa. Contrary to the target operation temperature of 300C, the temperature of the CT-specimens during irradiation ranges between 316 and 368C. The irradiation temperature of miniaturized charpy specimens is estimated to be in the same range as measured for the CT-specimens. 24 refs.


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