Analysis of reactivity determination methods in the subcritical experiment Yalina
2005 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 554, no 1-3, 374-383 p.Article in journal (Refereed) Published
Different reactivity determination methods have been investigated, based on experiments performed at the subcritical assembly Yalina in Minsk, Belarus. The development of techniques for on-line monitoring of the reactivity level in a future accelerator-driven system (ADS) is of major importance for safe operation. Since an ADS is operating in a subcritical mode, the safety margin to criticality must be sufficiently large. The investigated methods are the Slope Fit Method, the Sjostrand Method and the Source Jerk Method. The results are compared with Monte Carlo simulations performed with different nuclear data libraries. The results of the Slope Fit Method are in good agreement with the Monte Carlo simulation results, whereas the Sjostrand Method appears to underestimate the criticality somewhat. The Source Jerk Method is subject to inadequate statistical accuracy.
Place, publisher, year, edition, pages
2005. Vol. 554, no 1-3, 374-383 p.
Yalina, reactivity determination, subcritical, MCNP, ADS, ACCELERATOR-DRIVEN SYSTEMS, KINETICS
IdentifiersURN: urn:nbn:se:kth:diva-12677DOI: 10.1016/j.nima.2005.07.058ISI: 000233978500033ScopusID: 2-s2.0-27844541305OAI: oai:DiVA.org:kth-12677DiVA: diva2:317896
QC 201006212010-05-052010-05-052010-11-15Bibliographically approved