Performance testing of the upgraded uranium isotopics multi-group analysis code MGAU

被引：25

作者：

Berlizov, A. N.

Gunnink, R.

Zsigrai, J.

Nguyen, C. T.

Tryshyn, V. V.

机构：

[1] Natl Acad Sci Ukraine, Inst Nucl Res, UA-03680 Kiev, Ukraine

[2] Hungarian Acad Sci, Inst Isotopes, Budapest, Hungary

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2007年 / 575卷 / 03期

关键词：

uranium; isotope abundances; non-destructive analysis; gamma- and X-ray spectrometry; MGAU;

D O I：

10.1016/j.nima.2007.02.099

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The paper describes recent developments of the MGAU (Multi-Group Analysis for Uranium) method, which resulted in the creation of an upgraded version 4.0 of the MGAU code. The major improvements concerned the procedure of the intrinsic efficiency calibration, particularly in the 120-205 keV region. The results of the tests carried out with the use of certified reference uranium isotopic materials SRM 969 and CRM 146 showed a significantly improved performance of the upgraded MGAU code for the accurate characterization of U-235 and U-234 abundances. The relative systematic biases of the abundances measured were evaluated not to exceed 1% and 3% over the concentration intervals 0.32-93.2 and 0.002-0.98 mass% for U-235 and U-234, respectively. The influence of an up to 4-5mm steel equivalent absorber and sample thickness on the measurement results was found to be much smaller than in previous versions of the code. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：498 / 506

页数：9

共 14 条

[1] Applicability and limits of the MGAU code for the determination of the enrichment of uranium samples [J].

Abousahl, S ;

Michiels, A ;

Bickel, M ;

Gunnink, R ;

Verplancke, J .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 368 (02) :443-448

[2]

BERLIZOV AN, 2000, SCI PAP I NUCL RES, V2, P86

[3]

BERLIZOV AN, 2001, P IAEA S INT SAF VIE

[4]

BERLIZOV AN, 2005, IN PRESS P INT WORKS

[5]

Dudder GB, 2003, P S IAEA, P41

[6]

GUNNINK R, 1994, P INT MGA US WORKSH, P179

[7]

GUNNINK R, 1994, UCRLJC114713 LAWR LI

[8]

Gunnink R, 1997, P 19 ESARDA S SAF NU, P431

[9] Basic characterization of highly enriched uranium by gamma spectrometry [J].

Nguyen, Cong Tam ;

Zsigrai, Jozsef .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2006, 246 (02) :417-424

[10]

NGUYEN CQ, UNPUB

← 1 2 →