Feasibility study on hybrid K{sub o}-relative NAA as a reference method in RM certification

Journal Article · Tue Dec 31 04:00:00 EST 1996 · Transactions of the American Nuclear Society

OSTI ID:436783

Tian, Weizhi; Ni, Bangfa ^[1]

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1. China Inst. of Atomic Energy, Beijing (China)

Despite the fact that neutron activation analysis (NAA) has been one of the most frequently used methods in multielemental certification of reference materials (RMs), it is so far not eligible to be a reference (or definitive) method mainly because the technique is considered a relative comparison - one that cannot fully meet the traceability requirements in RM certification. The establishment of K{sub 0} standardization by a joint Belgium-Hungary group paved the way toward making NAA a parametric method for elements determined through l/v (n,{gamma}) reactions. In this work, K{sub 0} standardization was adopted and extended; parametric corrections for nuclear reaction and gamma-spectrum interferences and parametric normalizations for different counting geometries were established; a hybrid K{sub 0}-relative NAA software, ADVNAA, was written and successfully used in a series of intercomparison and certification studies of RMs.

• OSTI ID: 436783
• Report Number(s): CONF-9606116--
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 74; ISSN TANSAO; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
40 CHEMISTRY
99 GENERAL AND MISCELLANEOUS
A CODES
ACCURACY
CALIBRATION STANDARDS
CERTIFICATION
FEASIBILITY STUDIES
NEUTRON ACTIVATION ANALYSIS
STANDARDIZATION