Measurement of neutron spectra in the experimental reactor LR-0
- Faculty of Informatics, Masaryk University, Botanicka 68a, 612 00 Brno, (Czech Republic)
- Research Centre Rez, Hlavni 130, 250 68 Husinec-Rez, (Czech Republic)
- VF, a.s., Svitavska 588, 679 21 Cerna Hora, (Czech Republic)
- Faculty of Military Technology, University of Defense, Brno, (Czech Republic)
The measurement of fast neutron fluxes is important in many areas of nuclear technology. It affects the stability of the reactor structural components, performance of fuel, and also the fuel manner. The experiments performed at the LR-0 reactor were in the past focused on the measurement of neutron field far from the core, in reactor pressure vessel simulator or in biological shielding simulator. In the present the measurement in closer regions to core became more important, especially measurements in structural components like reactor baffle. This importance increases with both reactor power increase and also long term operation. Other important task is an increasing need for the measurement close to the fuel. The spectra near the fuel are aimed due to the planned measurements with the FLIBE salt, in FHR / MSR research, where one of the task is the measurement of the neutron spectra in it. In both types of experiments there is strong demand for high working count rate. The high count rate is caused mainly by high gamma background and by high fluxes. The fluxes in core or in its vicinity are relatively high to ensure safe reactor operation. This request is met in the digital spectroscopic apparatus. All experiments were realized in the LR-0 reactor. It is an extremely flexible light water zero-power research reactor, operated by the Research Center Rez (Czech Republic). (authors)
- Research Organization:
- Institute of Electrical and Electronics Engineers - IEEE, 3 Park Avenue, 17th Floor, New York, N.Y. 10016-5997 (United States)
- OSTI ID:
- 22531237
- Report Number(s):
- ANIMMA-2015-IO-184; TRN: US16V0284102178
- Resource Relation:
- Conference: ANIMMA 2015: 4. International Conference on Advancements in Nuclear Instrumentation Measurement Methods and their Applications, Lisboa (Portugal), 20-24 Apr 2015; Other Information: Country of input: France; 10 Refs.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BAFFLES
BIOLOGICAL SHIELDING
COUNTING RATES
CZECH REPUBLIC
FAST NEUTRONS
FLIBE
LR-0 REACTOR
NEUTRON FLUX
NEUTRON SPECTRA
PERFORMANCE
PRESSURE VESSELS
REACTOR OPERATION
RESEARCH REACTORS
SIMULATORS
STABILITY
VISIBLE RADIATION
WATER