Dosimetry Experiments on Wwer-1000 Mock-Up With Model of Irradiation Rig of Novo Voronezh Unit 5 Wwer-1000

Zaritsky, S.; Brodkin, EB; Egorov, A. I.; Erak, D.; Vikhrov, V.I.; Markina, N. V.; Ryazanov, D. K.; Lichadeev, V. V.; Tellin, A. I.; Lomakin, S. S.; Grigoriev, E. I.; Ošmera, B.; Posta, S.; Jánský, Bohumil; Novák, Evžen; Cvachovec, František; Tiller, P.

doi:10.1142/9789812705563_0050

Cited by 2 publications

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“…Such measurements are carried out especially in cases, when spectrometer cannot be put in the necessary position. Such situation took place in experiments with model of irradiation rig located inside the central channel in the baffle [6] (modeling the steel samples irradiations in the reactor VVER-1000) -see Fig. 10.…”

Section: Fast Neutron and Gamma Spectra Measurementsmentioning

confidence: 99%

Neutron and gamma spectrometry in the research reactor LR-0

Zaritsky

Ošmera

Cvachovec

et al. 2009

2009 1st International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and Their Applications

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Complex measurement system for full-scale VVER models (mock-ups), created in the research reactor LR-0, is discussed. Fast neutron (energy from 0.5 to 10 MeV) and gamma spectra are measured in several representative points of mock-ups by two-parameter spectrometer with cylindrical stilbene scintillation detectors. Measurements in the thermal and epithermal neutron region are carried out with activation method using broad set of activation monitors and with 3 He(n,p) counter. Activation measurements with threshold fast neutron detectors enlarge also proton-recoil spectra measurements, such measurements are carried out especially in cases, when spectrometer cannot be put in the necessary position. The core fission rate distribution is obtained by means of gamma-scanning of fuel pins. The low noise precise power (flux density) monitoring system, independent of operation control system, was developed in the LR-0 reactor for mock-up experiments.

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Section: Fast Neutron and Gamma Spectra Measurementsmentioning

confidence: 99%