The Pulsed Neutron Source (PNS) experiment on the Fast-thermal Coupled sub-critical core VENUS-1# has been performed in CIAE with 14MeV accelerator neutron source. The preliminary experimental data indicated spatial dependence of prompt neutron attenuation constant α, which is conflict to traditional theories. To re-evaluate the experiment and probe possible special features of the Fast-thermal Coupled core, a Monte-Carlo simulation of PNS experiment has been performed in this paper. Considering Contamination of harmonics mode of prompt neutrons, a data-processing technique, e.g. harmonics filtering, is used to obtain the fundamental mode decay. The simulated results indicate that, the influence of harmonics and external source are mainly in the time region 0∼500μs after pulsed neutron injection; by harmonics filtering, spatially independent α values are obtained and verified. By the method above, the experimental data are re-processed, however, the problem of the spatially dependence of α is not improved at all, the α value indicated by detector R is still quite different from others’. The works performed in this paper suggest that, some future PNS experiments should be deployed to confirm the experimental phenomenon.
Skip Nav Destination
2013 21st International Conference on Nuclear Engineering
July 29–August 2, 2013
Chengdu, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5582-9
PROCEEDINGS PAPER
Re-Evaluation of Pulsed Neutron Experiment on Fast-Thermal Coupled Sub-Critical Reactor VENUS-1# Available to Purchase
Jinsen Xie,
Jinsen Xie
University of South China, Hengyang, Hunan, China
China Institute of Atomic Energy, Beijing, China
Search for other works by this author on:
Tao Yu
Tao Yu
University of South China, Hengyang, Hunan, China
Search for other works by this author on:
Jinsen Xie
University of South China, Hengyang, Hunan, China
China Institute of Atomic Energy, Beijing, China
Tao Yu
University of South China, Hengyang, Hunan, China
Paper No:
ICONE21-15467, V005T11A006; 7 pages
Published Online:
February 7, 2014
Citation
Xie, J, & Yu, T. "Re-Evaluation of Pulsed Neutron Experiment on Fast-Thermal Coupled Sub-Critical Reactor VENUS-1#." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 5: Fuel Cycle, Radioactive Waste Management and Decommissioning; Reactor Physics and Transport Theory; Nuclear Education, Public Acceptance and Related Issues; Instrumentation and Controls; Fusion Engineering. Chengdu, China. July 29–August 2, 2013. V005T11A006. ASME. https://doi.org/10.1115/ICONE21-15467
Download citation file:
12
Views
Related Proceedings Papers
Related Articles
Cylindrical IEC Fusion Neutron Source for Broad Area NAA
J. Eng. Gas Turbines Power (December,2011)
Performance of NB-CTMFD Detector Versus Ludlum 42-49B, and Fuji NSN3 Detectors for Hard (Am-Be) and Soft (Cf-252 Fission) Energy Spectra Neutron Sources Within Lead/Concrete Shielded Configurations
ASME J of Nuclear Rad Sci (October,2024)
Detection of Combined n / γ Fission Signatures Induced by an Epithermal Neutron Source
ASME J of Nuclear Rad Sci (July,2017)
Related Chapters
Test Methods
Consensus on Operating Practices for the Sampling and Monitoring of Feedwater and Boiler Water Chemistry in Modern Industrial Boilers (CRTD-81)
Artificial Indents as the Root Cause of Rolling Contact Fatigue Damage: Effect of Plastic Properties
Bearing and Transmission Steels Technology
Application of 14 MeV and Cf-252 Neutron Sources to Instrumental Neutron Activation Analysis of Lunar Samples
Analytical Methods Developed for Application to Lunar Samples Analyses