Determination of uranium and plutonium in mixed oxide samples by X-ray methods and their comparison with potentiometry

被引：9

作者：

Bootharajan, M. ^{[1
]}

Kumar, G. V. S. Ashok ^{[1
]}

Sreenivasulu, B. ^{[1
]}

Senthilvadivu, R. ^{[1
]}

Garnayak, P. M. ^{[3
]}

Pandey, A. ^{[4
]}

Kelkar, A. ^{[4
]}

Sathe, D. B. ^{[4
]}

Bhatt, R. B. ^{[4
]}

Rao, C. V. S. Brahmananda ^{[1
]}

Sundararajan, K. ^{[1
,2
]}

Jayaraman, V. ^{[1
,2
]}

Sivaraman, N. ^{[1
,2
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Mat Chem & Met Fuel Cycle Grp, Kalpakkam, India

[2] Indira Gandhi Ctr Atom Res, Homi Bhabha Natl Inst HBNI, Kalpakkam 603102, India

[3] Bhabha Atom Res Ctr, Nucl Recycle Board, FRFCF, Kalpakkam 603102, India

[4] Bhabha Atom Res Ctr, Nucl Recycle Board, Fuel Fabricat, Integrated Nucl Recycling Plant O, Tarapur 401 502, India

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2022年 / 194卷

关键词：

Uranium; Plutonium; KED; EDXRF; Potentiometry; COMPOSITIONAL CHARACTERIZATION;

D O I：

10.1016/j.sab.2022.106481

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Uranium and plutonium in nuclear fuels are generally determined by conventional potentiometric methods which generates large quantities of radioactive waste. In the present study, K-edge densitometry (KED) and Energy dispersive X-ray fluorescence (EDXRF) have been examined for the determination of uranium and plutonium in solutions as an alternative to potentiometric methods. In the present study, uranium plutonium mixed oxide (MOX) pellets were dissolved in nitric acid medium containing small quantities of HF. Uranium and plutonium in MOX solutions were determined by KED and EDXRF methods and the results are compared with the one obtained by conventional potentiometric methods. The relative standard deviation (RSD) of the analytical results for U and Pu using KED were found to be better than & PLUSMN;1% and & PLUSMN; 0.9% respectively. Similarly, RSD for U and Pu by EDXRF were found to be better than & PLUSMN;1.6% and & PLUSMN; 0.8%, respectively. The absolute difference between KED and EDXRF with respect to potentiometric data for uranium and plutonium were calculated and it was found to be marginal indicating that KED and EDXRF methods can be employed for the routine analysis of U and Pu in solutions. X-ray methods employed in the present study are non-consumptive, direct and offer precise determination of U and Pu and generate no waste.

引用

页数：6

共 25 条

[11]

Gopinath N., 1998, IANCAS, V3, P156

[12]

Hsue S.-T., 1994, ALAMOS NATL LAB, DOI [10.2172/10105949, DOI 10.2172/10105949]

[13]

Hsue S.-T., 1995, LAUR953222 LOS AL NA

[14] DETERMINATION OF PLUTONIUM IN PRESENCE OF URANIUM BY ALPHA-SPECTROMETRY [J].

KUC, G ;

PARUS, J ;

KIERZEK, J .

JOURNAL OF RADIOANALYTICAL CHEMISTRY, 1976, 31 (01) :105-113

[15] PLUTONIUM AND URANIUM DETERMINATION IN ENVIRONMENTAL SAMPLES - COMBINED SOLVENT EXTRACTION-LIQUID SCINTILLATION METHOD [J].

MCDOWELL, WJ ;

FARRAR, DT ;

BILLINGS, MR .

TALANTA, 1974, 21 (12) :1231-1245

[16] Evaluation of high resolution X-ray monochromatic wavelength dispersive X-ray fluorescence instrument for determining Pu and U in nuclear reprocessing streams [J].

McIntosh, K. G. ;

Havrilla, G. J. ;

Gilmore, R. F., Jr. ;

Holland, M. K. .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2018, 148 :1-7

[17] Determination of plutonium in spent nuclear fuel using high resolution X-ray [J].

McIntosh, Kathryn G. ;

Reilly, Sean D. ;

Havrilla, George J. .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2015, 110 :91-95

[18] Determination of uranium content in Th, U mixed oxides using EDXRF [J].

Natarajan, V. ;

Kulkarni, M. J. ;

Porwal, N. K. ;

Dhawale, B. A. ;

Hon, N. S. ;

Godbole, S. V. ;

Manchanda, V. K. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2008, 266 (14) :3290-3294

[19]

Ottmar H., 1991, KFK4590

[20] Non-destructive determination of uranium and plutonium in annular (U, Pu)O2mixed oxide sintered pellets by wavelength dispersive X-ray fluorescence spectrometry [J].

Pandey, A. ;

Khan, F. A. ;

Kelkar, A. ;

Purohit, P. ;

Kumar, Pradeep ;

Kumar, Vijay ;

Sathe, D. B. ;

Bhatt, R. B. ;

Behere, P. G. .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2020, 326 (01) :423-433

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