Prompt-Neutron Lifetime in Critical Enriched-Uranium Metal Cylinders and Annuli

1964 ◽  
Vol 20 (1) ◽  
pp. 60-65 ◽  
Author(s):  
John T. Mihalczo
Keyword(s):  
Prompt Neutron ◽  
Neutron Lifetime ◽  
Uranium Metal ◽  
Enriched Uranium

Prompt neutron lifetime calculations for the NIRR-1 reactor

2015 ◽  
Vol 3 (2) ◽  
pp. 125-131 ◽  
Author(s):  
Yakubu V. Ibrahim ◽  
Micheal O. Adeleye ◽  
Raymond L. Njinga ◽  
Henry C. Odoi ◽  
Sunday A. Jonah
Keyword(s):  
Prompt Neutron ◽  
Neutron Lifetime

Calculation of the Prompt Neutron Lifetime in the NBSR

2006 ◽  
Vol 153 (1) ◽  
pp. 26-32 ◽  
Author(s):  
Albert L. Hanson ◽  
Hans Ludewig ◽  
David J. Diamond
Keyword(s):  
Prompt Neutron ◽  
Neutron Lifetime

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.

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