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Borella, A., Gunsing, F., Kopecky, S., Ivanov, I., Mihailescu, C., Moxon, M., et al. (2007) Advances in Neutron-Induced Resonance Reaction Cross Section Studies at GELINA. Proceedings of the International Conference on Nuclear Data for Science and Technology ND2007, Nice, 22-27 April 2007, 546-550.

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• TITLE: Development of 24 and 59 keV Filtered Neutron Beams for Neutron Capture Experiments at Dalat Research Reactor

  AUTHORS: Pham Ngoc Son, Vuong Huu Tan, Phu Chi Hoa, Tran Tuan Anh

  KEYWORDS: Research Reactor, Filtered Neutron, 24 keV, 59 keV

  JOURNAL NAME: World Journal of Nuclear Science and Technology, Vol.4 No.2, April 14, 2014

  ABSTRACT: External filtered neutron beams have been developed at the horizontal radial channels No. 4 of Dalat research reactor. In the material composition of the neutron filters, the primary material components of Iron, Aluminum, Nickel and Vanadium are used to obtain the mono-energetic neutron beams of 24 and 59 keV, with low level of Gamma and slow neutron background. A computer code and Monte-Carlo simulation technique were applied to optimize the filter configurations and to deduce the neutron energy distributions in the filtered beams. A hydrogen-filled proton recoil detector and the activation method with Gold foils were used to measure the neutron energy spectrum and flux of each beam at sample position. The results of experimental neutron fluxes are 6.1 × 105 and 5.3 × 105 n/cm2/s for 24 and 59 keV beams, respectively.