Browsing by Author Nguyen, Van Quan

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  • Authors: Nguyen, Van Quan; Bui, Van Loat; Nguyen, Cong Tam (2016)

  • Passive non-destructive methodswere developed for determining total U, 235U and total Pu content of damaged spent fuel. The methods based on correlations between 137Cs and U, Pu content and using referent spent fuel assemblies. It means that the nuclear material content can be derived from measurable137Cs content, which depends on gamma ray transmission factor. In this work, this factor was determinedby aninfinite energy method and the same for both damaged and referentspent fuel with error less than 12%.

  • 51.pdf.jpg
  • Article


  • Authors: Bui, Van Loat; Le, Tuan Anh; Nguyen, Van Quan; Dinh, Van Thin; Nguyen, Cong Tam (2012)

  • In this work the non-destructive gamma - spectroscopic method for determination of uranium enrichment is presented. The method is applicable to material of any physical form and geometrical shape, and does not require the use of reference materials or the use of efficiency calibrated geometry. The X Rays and gamma rays below 100 keVfrom 235U were used to determine their relative detection efficiency internally. The activity ratios of 234U/235U and U238/U235in studied sample were calculated based on the measurents of the count rate of 53.2keV (0.123%) gamma ray of 234U and 92.6 keV (5.16%) of 234Th, a daughter of 238U. As a test of this method, a highly enriched uraniumsample was meas...

  • 125.pdf.jpg
  • Article


  • Authors: Bui, Van Loat; Nguyen, Van Quan; Le, Tuan Anh; Tran, The Anh; Nguyen, The Nghia; Nguyen, Van Hung (2009)

  • Radioactive sources which used to study were the standardized radioactive of common monoenergetic radionuclide Cs137 and standardized multigamma Co60, Ba133, Eu152. Determination of the absolute efficiency curve and energy resolution as a function of energy of GEM40P4 HPGe spectrometer are presented in this paper.

Browsing by Author Nguyen, Van Quan

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 4 of 4
  • TL4.pdf.jpg
  • Article


  • Authors: Nguyen, Van Quan; Bui, Van Loat; Nguyen, Cong Tam (2016)

  • Passive non-destructive methodswere developed for determining total U, 235U and total Pu content of damaged spent fuel. The methods based on correlations between 137Cs and U, Pu content and using referent spent fuel assemblies. It means that the nuclear material content can be derived from measurable137Cs content, which depends on gamma ray transmission factor. In this work, this factor was determinedby aninfinite energy method and the same for both damaged and referentspent fuel with error less than 12%.

  • 51.pdf.jpg
  • Article


  • Authors: Bui, Van Loat; Le, Tuan Anh; Nguyen, Van Quan; Dinh, Van Thin; Nguyen, Cong Tam (2012)

  • In this work the non-destructive gamma - spectroscopic method for determination of uranium enrichment is presented. The method is applicable to material of any physical form and geometrical shape, and does not require the use of reference materials or the use of efficiency calibrated geometry. The X Rays and gamma rays below 100 keVfrom 235U were used to determine their relative detection efficiency internally. The activity ratios of 234U/235U and U238/U235in studied sample were calculated based on the measurents of the count rate of 53.2keV (0.123%) gamma ray of 234U and 92.6 keV (5.16%) of 234Th, a daughter of 238U. As a test of this method, a highly enriched uraniumsample was meas...

  • 125.pdf.jpg
  • Article


  • Authors: Bui, Van Loat; Nguyen, Van Quan; Le, Tuan Anh; Tran, The Anh; Nguyen, The Nghia; Nguyen, Van Hung (2009)

  • Radioactive sources which used to study were the standardized radioactive of common monoenergetic radionuclide Cs137 and standardized multigamma Co60, Ba133, Eu152. Determination of the absolute efficiency curve and energy resolution as a function of energy of GEM40P4 HPGe spectrometer are presented in this paper.