SYMPOSIA PAPER Published: 01 January 1989
STP10079S

Nuclear Data for the Use of Niobium as Neutron Fluence Monitor

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The 93Nb(n,ń)93Nbm reaction is frequently used for neutron fluence determination in nuclear reactors. The suitability of the niobium monitor depends very much on knowledge of the reaction cross section and the decay data of the generated isomer state 93Nbm. Results of recent developments at various institutes concerning these data are reviewed.

The reaction cross section averaged over the 252Cf fission neutron spectrum has been remeasured, resulting in a value of (145 ± 5) mb. This is compared with values measured in the NBSR 235U standard fission neutron field and with results from other experiments.

Author Information

Alberts, WG
Physikalisch-Technische Bundesanstalt, Braunschweig, Federal Republic of Germany
Schötzig, U
Physikalisch-Technische Bundesanstalt, Braunschweig, Federal Republic of Germany
Siegert, H
Physikalisch-Technische Bundesanstalt, Braunschweig, Federal Republic of Germany
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Details
Developed by Committee: E10
Pages: 223–228
DOI: 10.1520/STP10079S
ISBN-EB: 978-0-8031-5069-0
ISBN-13: 978-0-8031-1184-4