A critical evaluation of different isotope correlations for the determination of 242Pu

Alamelu, D.; Chakraborty, Sagnik

doi:10.1016/j.apradiso.2010.06.025

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…Since 242 Pu has no significant gamma lines, isotopic correlation was used to determine the 242 Pu/ 239 Pu atom ratio. Different isotopic correlations are reported in literature for the determination of 242 Pu [18][19][20][21]. In the present study, the correlations proposed by Aggarwal et al, which demonstrated a linear correlation between 242 Pu/ 239 Pu and 240 Pu/ 239 Pu atom ratios were used [20].…”

Section: Calculation Of Atom Ratiosmentioning

confidence: 97%

Isotope dilution gamma spectrometry for Pu using low energy photons

et al. 2012

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Gamma spectrometry / Isotope dilution / HPGe / Plutonium / Isotopic composition / ConcentrationSummary. Isotope dilution gamma spectrometry (IDGS) for determination of the Pu concentration, using high resolution gamma-ray spectrometry (HRGS) in the 40-150 keV energy range, is developed and described. The methodology involves purification of Pu by an anion exchange procedure, followed by the determination of Pu isotopic composition using HRGS. For isotope dilution, a precalibrated power reactor grade Pu (∼ 70 at. % 239 Pu) solution from an Indian PHWR was used as a spike for research reactor grade Pu (∼ 95 at. % 239 Pu) samples and vice versa. Changes in 240 Pu/ 239 Pu (45.24 keV/51.62 keV) and 241 Pu/ 239 Pu (148.57 keV/129.29 keV) activity ratios in the spiked samples were determined by gamma spectrometry. Using the atom ratios calculated from the measured activity ratios, the concentration of Pu in the sample was calculated using two different efficiency calibration methods. The isotopic composition and concentration of Pu samples both from power reactor and research reactor grade agreed well with the values obtained by isotope dilution-thermal ionization mass spectrometry. The present method also shows the superiority of using the 240 Pu/ 239 Pu atom ratio against the 241 Pu/ 239 Pu atom ratio in IDGS with respect to the accuracy and precision.

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Section: Calculation Of Atom Ratiosmentioning

confidence: 97%

Isotope dilution gamma spectrometry for Pu using low energy photons

et al. 2012

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“…However, different isotope correlations are reported in literature for the determination of 242 Pu in Pu samples using other Pu isotopes abundances. These correlations have been developed based on Pu IC data obtained by different methods such as TIMS, α-S, liquid scintillation counting, neutron coincidence counting (Aggarwal et al, 1998;Aggarwal, 2001, 2007;Alamelu et al, 2010;Bignan et al,1998;De Regge and Bodden, 1978;Joe et al, 2010;Kumar et al, 2008;Li et al,1991aLi et al, , 1991bLi et al, , 1997Nishida et al,1992;Sampson et al,1980;Schubert and Ottmar, 1987;Swinhoe et al, 2010,) etc. Depending on the different reactor burn-ups, these correlations are also different Aggarwal, 2001, 2007;Alamelu et al, 2010;Bignan et al, 1998).…”

Section: Introductionmentioning

confidence: 99%