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Published: 2014-03-30
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DOI: https://doi.org/10.53747/jnst.v4i1.215
Issue
Vol. 4 No. 1 (2014)
Section
Articles
How to Cite
Vuong , H. T., Pham , N. S., Nguyen , N. D., Tran , T. A., & Nguyen , X. H. (2014). Progress of Filtered Neutron Beams Development and Applications at the Horizontal Channels No.2 and No.4 of Dalat Nuclear Research Reactor. Nuclear Science and Technology, 4(1), 62-69. https://doi.org/10.53747/jnst.v4i1.215

Progress of Filtered Neutron Beams Development and Applications at the Horizontal Channels No.2 and No.4 of Dalat Nuclear Research Reactor

Vuong Huu Tan1, Pham Ngoc Son2, Nguyen Nhi Dien2, Tran Tuan Anh2, Nguyen Xuan Hai2
1 Vietnam Agency for Radiation and Nuclear Safety, 113-Tran Duy Hung, Hanoi
2 Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat

Main Article Content

Abstract

The neutron filter technique has been applied to create mono-energetic neutron beams with high intensity, at the horizontal channels No.2 and No.4 of the Dalat nuclear research reactor. The mono-energetic neutron beams that have been developed for researches and applications are thermal (0.025eV), 24keV, 54keV, 59keV, 133keV and 148keV. The relative intensities of main peak in filtered neutron energy spectra and the collimated neutron fluxes at the sample irradiation positions are 90 ¸ 96% and 2.8×105 ¸ 7.8×106 n/cm2.s, respectively. Monte Carlo simulations and transmission calculations were performed to each neutron energy beam for optimal design of geometrical structure and neutron filter materials. These filtered neutron beams have been applied efficiently for experimental researches on neutron total and capture cross sections measurements, and elemental analysis in various kinds of samples based on the prompt gamma neutron activation analysis method. This paper reviews the progress of filtered neutron beams development and its applications for past many years at the Dalat nuclear research reactor.

Article Details

Keywords

Filtered neutron beam, nuclear data measurement, Dalat nuclear research reactor

References

[1] General Atomic, Triga Mark II Reactor – General Specifications and Description. GA-2627 (1961).
[2] Vuong Huu Tan. Application study on the reactions induced by neutron, gamma and charge particles based on the available nuclear facilities in Vietnam. State scientific project report, code: KC-09-08A (1994).
[3] Vuong Huu Tan. Study on development of nuclear spectroscopy to be used at the neutron beams for cascade gamma transitions and nuclear data measurements. Ministry scientific project report, code: BT12-07-09-NLNT, (2009) (in Vietnamese).
[4] Pham Ngoc Son. Development of filtered neutron beam based on the horizontal channel No.2 of the Datal nuclear research reactor. Ministry scientific project report, code: ĐT.08/09/NLNT, (2012) (in Vietnamese).
[5] Vuong Huu Tan, Pham Ngoc Son, et al. Development of filtered neutron beams of 24, 59, and 133 keV at Dalat research reactor. Nuclear Science and Technology, ISSN: 1810-5408, No.3, pp.8-15 (2009).
[6] Pham Ngoc Son, Vuong Huu Tan, Phu Chi Hoa, Tran Tuan Anh. Development of Filtered Neutron Beams of 24keV and 59keV at Dalat Research Reactor. Accepted to be published in World Journal of Nuclear Science and Technology, Vol.4 (2014).
[7] Tran Tuan Anh, Pham Ngoc Son, Vuong Huu Tan, Pham Dinh Khang, Phu Chi Hoa. Characteristics of Filtered Neutron Beam Energy Spectra at Dalat Reactor. Accepted to be published in World Journal of Nuclear Science and Technology (2014).
[8] Vuong Huu Tan, Pham Ngoc Son, et al. Neutron Capture Cross Section Measurements of 109Ag, 186W and 158Gd on Filtered Neutron Beams of 55keV and 144keV. Nuclear Science and Technology, Vol.3 No.1, pp.1-7; IAEA, Nuclear data section, INDC-VN-011, (2004).
[9] Vuong Huu Tan, Pham Ngoc Son, et al. Measurement of Neutron Capture Cross Section of 139La, 152Sm and 191,193Ir at 55keV and 144keV. Proc. of Symposium on Nuclear Data, Tokai, Ibaraki, Japan, SND2006-V.02-1 (2007).
[10] Vuong Huu Tan, Pham Ngoc Son, et al. Capture Cross Section Measurements of 185, 187Re with Filtered Neutron Beams at the Dalat Research Reactor. Journal of the Korean Physical Society, Vol.59, No.2, pp. 1757-1760 (2011).
[11] Pham Ngoc Son, Vuong Huu Tan. Filtered Neutron Capture Cross Section of 186W(n,γ)187W reaction at 24 keV. Proceedings of the 4th Asian Nuclear Reaction Database Development Workshop, al-Farabi Kazakh National University, Almaty, Kazakhstan, 23 – 25 October 2013, IAEA Nuclear Data Section, INDC(KAS)-001, (2014).
[12] Pham Ngoc Son, Vuong Huu Tan, et al Measurement of Thermal Neutron Cross-section and Resonance Integrals of the 69Ga(n,)70Ga and 71Ga(n,)72Ga Reactions at Dalat Research Reactor. Journal of the Korean Physical Society, Vol.59, No.2, pp. 1761-1764, ISSN: 0374-4884 (2011).
[13] V. H. Tan, et al. Development of In-Vivo Prompt Gamma Activation Analysis Using The Filtered Neutron Beam at The Dalat Reactor. Proceeding of 11th Pacific Basin Nucl. Conf., Canada, (May 1998).