NEUTRON DENSITY STUDY IN SUB-CRITICAL STATE WITH PULSED NEUTRON SOURCE

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KHODABAKHSH R.; BEHNIA S.; SEIDI M.

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Paper Information

Journal: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Year:2015 | Volume:- | Issue:71 Page(s): 137-147

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Information Journal Paper

Title

NEUTRON DENSITY STUDY IN SUB-CRITICAL STATE WITH PULSED NEUTRON SOURCE

Author(s)

KHODABAKHSH R. | BEHNIA S. | SEIDI M. | Issue Writer Certificate

Keywords

PULSED NEUTRON SOURCEQ2

PROMPT NEUTRONS GENERATION TIMEQ2

LYAPUNOV EXPONENTQ2

NEUTRON DENSITYQ2

Abstract

During the cold start-up, the reactor is in sub-critical state. Therefore, the external neutron source cannot be neglected. In this research paper, the analytical solution of neutron point kinetics equations with a group of delayed neutrons in the presence of the PULSED NEUTRON SOURCE in a pressurized-water reactor with 235U as a fuel is presented. The analytical solution is based on the expansion of the NEUTRON DENSITY in powers of the PROMPT NEUTRONS GENERATION TIME. The point kinetics equations with this method are solvable for step and ramp reactivity and lead to better results compared with other analytical works, but are not solvable for sinusoidal reactivity. So, the NEUTRON DENSITY response to sinusoidal reactivity is analyzed by using the fixed point and LYAPUNOV EXPONENTs method.

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APA: Copy

KHODABAKHSH, R., BEHNIA, S., & SEIDI, M.. (2015). NEUTRON DENSITY STUDY IN SUB-CRITICAL STATE WITH PULSED NEUTRON SOURCE. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, -(71), 137-147. SID. https://sid.ir/paper/97674/en

Vancouver: Copy

KHODABAKHSH R., BEHNIA S., SEIDI M.. NEUTRON DENSITY STUDY IN SUB-CRITICAL STATE WITH PULSED NEUTRON SOURCE. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY[Internet]. 2015;-(71):137-147. Available from: https://sid.ir/paper/97674/en

IEEE: Copy

R. KHODABAKHSH, S. BEHNIA, and M. SEIDI, “NEUTRON DENSITY STUDY IN SUB-CRITICAL STATE WITH PULSED NEUTRON SOURCE,” JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. -, no. 71, pp. 137–147, 2015, [Online]. Available: https://sid.ir/paper/97674/en

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