scholarly journals Prompt-period measurement of the Annular Core Research Reactor prompt neutron generation time

1994 ◽  
Author(s):  
R.L. Coats ◽  
D.G. Talley ◽  
F.R. Trowbridge
Keyword(s):  
Generation Time ◽  
Research Reactor ◽  
Prompt Neutron ◽  
Neutron Generation ◽  
Period Measurement

scholarly journals Kinetic parameters study based on burn-up for improving the performance of research reactor equilibrium core

2014 ◽  
Vol 29 (4) ◽  
pp. 253-258 ◽  
Author(s):  
Atta Muhammad ◽  
Masood Iqbal ◽  
Tayyab Mahmood
Keyword(s):  
Kinetic Parameters ◽  
Generation Time ◽  
Research Reactor ◽  
Prompt Neutron ◽  
Neutron Generation ◽  
Delayed Neutron ◽  
Fuel Burn ◽  
Hard Spectrum ◽  
Computer Codes ◽  
Enriched Uranium

In this study kinetic parameters, effective delayed neutron fraction and prompt neutron generation time have been investigated at different burn-up stages for research reactor's equilibrium core utilizing low enriched uranium high density fuel (U3Si2-Al fuel with 4.8 g/cm3 of uranium). Results have been compared with reference operating core of Pakistan research Reactor-1. It was observed that by increasing fuel burn-up, effective delayed neutron fraction is decreased while prompt neutron generation time is increased. However, over all ratio beff/L is decreased with increasing burn-up. Prompt neutron generation time L in the understudy core is lower than reference operating core of reactor at all burn-up steps due to hard spectrum. It is observed that beff is larger in the understudy core than reference operating core of due to smaller size. Calculations were performed with the help of computer codes WIMSD/4 and CITATION.

Lifetime of a prompt-neutron generation in a research reactor with a heavy-water reflector

Atomic Energy ◽  
1995 ◽  
Vol 79 (6) ◽  
pp. 863-865 ◽  
Author(s):  
A. N. Erykalov ◽  
V. V. Kyz'minov ◽  
Yu. V. Petrov
Keyword(s):  
Heavy Water ◽  
Research Reactor ◽  
Prompt Neutron ◽  
Neutron Generation

Calculation of neutron generation time with prompt neutron density decay method

2013 ◽  
Vol 25 (1) ◽  
pp. 237-240 ◽  
Author(s):  
张良 Zhang Liang ◽  
陈伟 Chen Wei ◽  
赵柱民 Zhao Zhumin ◽  
张信一 Zhang Xinyi ◽  
江新标 Jiang Xinbiao
Keyword(s):  
Generation Time ◽  
Prompt Neutron ◽  
Neutron Density ◽  
Neutron Generation

Sensitivity Analysis of Kinetics Parameters of Tehran Research Reactor (TRR)

2009 ◽  
Author(s):  
Seyed Abolfazl Hosseini ◽  
Naser Vosoughi
Keyword(s):  
Generation Time ◽  
Research Reactor ◽  
Fission Cross Section ◽  
Computer Code ◽  
Coolant Temperature ◽  
Neutron Generation ◽  
Kinetics Parameters ◽  
Neutron Fission ◽  
Tehran Research Reactor ◽  
Variation Rate

In this research, effective delayed neutron fraction (βeff) and neutron generation time (Λ) of the Tehran Research Reactor (TRR) are calculated for different uranium enrichments from 14.84 w/o to 96.56 w/o U235 in two states of the TRR, (cold fuel, clad and coolant temperature of 20 °C; and hot fuel, clad and coolant temperature of 65, 49 and 44 °C, respectively) using the MTR_PC computer code. Comparative analysis shows that both βeff and Λ increase as fuel enrichment decreases. However, variation rate of βeff is not the same in two conditions. βeff in the hot state is larger than those calculated in the cold state when fuel enrichment goes more than 83.91%, while the situation is reverse for enrichment less than that. The obtained neutron generation time shows normal behavior for all different fuel enrichments. The variables involved in kinetics parameters calculations (i.e., neutron fission cross section, fuel enrichment, etc.) are investigated theoretically to confirm the results of calculations in cold and hot states. Variations of βeff and Λ with fuel burnup are studied too.

Measurement of prompt neutron generation time at the VIR-2M pulsed nuclear reactor

2016 ◽  
Vol 79 (8) ◽  
pp. 1357-1361 ◽  
Author(s):  
L. Yu. Glukhov ◽  
S. P. Kotkov ◽  
M. S. Kuznetsov ◽  
S. S. Chursin
Keyword(s):  
Generation Time ◽  
Nuclear Reactor ◽  
Prompt Neutron ◽  
Neutron Generation

Sensitivity methods for effective delayed neutron fraction and neutron generation time with summon

2019 ◽  
Vol 126 ◽  
pp. 410-418 ◽  
Author(s):  
P. Romojaro ◽  
F. Álvarez-Velarde ◽  
N. García-Herranz
Keyword(s):  
Generation Time ◽  
Neutron Generation ◽  
Delayed Neutron

Calculation of the importance-weighted neutron generation time using MCNIC method

2008 ◽  
Vol 35 (8) ◽  
pp. 1397-1402 ◽  
Author(s):  
S.A.H. Feghhi ◽  
M. Shahriari ◽  
H. Afarideh
Keyword(s):  
Generation Time ◽  
Neutron Generation

scholarly journals Neutron Generation Time in Highly-Enriched Uranium Core at Kyoto University Critical Assembly

2020 ◽  
Vol 194 (12) ◽  
pp. 1116-1127
Author(s):  
Cheol Ho Pyeon ◽  
Masao Yamanaka ◽  
Tomohiro Endo ◽  
Go Chiba ◽  
Willem F. G Van Rooijen ◽  
...  
Keyword(s):  
Generation Time ◽  
Critical Assembly ◽  
Neutron Generation ◽  
Enriched Uranium
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