Validation of the MCU-PTR computational model of beryllium poisoning using selected experiments at the IRT-T research reactor
| Autor: | Yu.B. Chertkov, M. V. Shchurovskaya, V. P. Alferov, A.I. Radaev, N. I. Geraskin, M.N. Anikin, I.I. Lebedev, A. Naymushin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
020209 energy Nuclear engineering Shutdown chemistry.chemical_element 02 engineering and technology medicine.disease 01 natural sciences Beryllium poisoning 010305 fluids & plasmas Nuclear Energy and Engineering chemistry Monte carlo code 0103 physical sciences 0202 electrical engineering electronic engineering information engineering medicine Research reactor Reactivity (chemistry) Irradiation Beryllium |
| Zdroj: | Annals of Nuclear Energy. 113:436-445 |
| ISSN: | 0306-4549 |
| Popis: | This paper presents the results of the validation of the MCU-PTR code computational model of beryllium poisoning caused by 3 He and 6 Li buildup against selected experiments at the IRT-T research reactor in the National Research Tomsk Polytechnic University. Calculations including the reflector irradiation history modeling for the entire reactor lifetime were performed using the continuous energy Monte Carlo code MCU–PTR. The measured reactivity loss (∼3.2%Δ k/k ) after the reactor shutdown period of 672 days and the reactivity increase (0.9%Δ k/k ) after replacement of the part of the reflector beryllium blocks by fresh blocks were compared with the calculated results. The impact of the parameters of beryllium poisoning model on the calculated results was investigated. The calculation underestimates the reactivity loss caused by 3 He buildup during the 672-day shutdown by approximately 0.5%Δ k/k . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect