The k0 and Q0 values for the Zr-isotopes: A re-investigation

Andras P. Simonits; F. De Corte; Stijn Van Lierde; S. Pommé; Piotr B. Robouch; M. Eguskiza

doi:10.1023/A:1006759516520

The k₀ and Q₀ values for the Zr-isotopes: A re-investigation

Andras P. Simonits, F. De Corte, Stijn Van Lierde, S. Pommé, Piotr B. Robouch, M. Eguskiza

Research output › peer-review

Abstract

The k₀ and Q₀ values for ⁹⁴Zr(n,γ)⁹⁵Zr (E(γ) = 724.2+756.7 keV) and ⁹⁶Zr(n,γ)^97mZr (β^-) ^97mNb(E(γ) = 743.4 keV) were re- investigated. The aim was to further improve the reliability of the neutron spectrum characterization (f and α monitoring) in k₀-NAA, based on 'bare monitor' methods with the use of these Zr radionuclides. So as to achieve this goal, experimental determinations were performed in three reactor centers: KFKI AEKI, Budapest (WWR-M reactor); INW, Gent (THETIS reactor); SCK-CEN, Mo1 (BR1 reactor). The results were: Q₀(⁹⁴Zr) = 5.306; Q₀(⁹⁶Zr) = 251.6; k₀(⁹⁵Zr, 724.2+756.7 keV) = 2.000E-4; k₀(^97mZr/^97mNb, 743.4 keV) = 1.237E-5. This means that the newly evaluated k₀-values are about 4.7% lower than the formerly reported ones. It is also emphasized that the ⁹⁷Zr half-life is 16.74 hours, contrary to the -1% higher values usually reported.

Original language	English
Pages (from-to)	199-203
Number of pages	5
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	245
Issue number	1
DOIs	https://doi.org/10.1023/A:1006759516520
State	Published - 2000

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1023/A:1006759516520

Cite this

@article{849df44b24104aa5865b5c24b5fcf649,

title = "The k0 and Q0 values for the Zr-isotopes: A re-investigation",

abstract = "The k0 and Q0 values for 94Zr(n,γ)95Zr (E(γ) = 724.2+756.7 keV) and 96Zr(n,γ)97mZr (β-) 97mNb(E(γ) = 743.4 keV) were re- investigated. The aim was to further improve the reliability of the neutron spectrum characterization (f and α monitoring) in k0-NAA, based on 'bare monitor' methods with the use of these Zr radionuclides. So as to achieve this goal, experimental determinations were performed in three reactor centers: KFKI AEKI, Budapest (WWR-M reactor); INW, Gent (THETIS reactor); SCK-CEN, Mo1 (BR1 reactor). The results were: Q0(94Zr) = 5.306; Q0(96Zr) = 251.6; k0(95Zr, 724.2+756.7 keV) = 2.000E-4; k0(97mZr/97mNb, 743.4 keV) = 1.237E-5. This means that the newly evaluated k0-values are about 4.7% lower than the formerly reported ones. It is also emphasized that the 97Zr half-life is 16.74 hours, contrary to the -1% higher values usually reported.",

author = "Simonits, {Andras P.} and {De Corte}, F. and {Van Lierde}, Stijn and S. Pomm{\'e} and Robouch, {Piotr B.} and M. Eguskiza",

year = "2000",

doi = "10.1023/A:1006759516520",

language = "English",

volume = "245",

pages = "199--203",

journal = "Journal of Radioanalytical and Nuclear Chemistry",

issn = "0236-5731",

publisher = "Springer",

number = "1",

}

TY - JOUR

T1 - The k0 and Q0 values for the Zr-isotopes

T2 - A re-investigation

AU - Simonits, Andras P.

AU - De Corte, F.

AU - Van Lierde, Stijn

AU - Pommé, S.

AU - Robouch, Piotr B.

AU - Eguskiza, M.

PY - 2000

Y1 - 2000

N2 - The k0 and Q0 values for 94Zr(n,γ)95Zr (E(γ) = 724.2+756.7 keV) and 96Zr(n,γ)97mZr (β-) 97mNb(E(γ) = 743.4 keV) were re- investigated. The aim was to further improve the reliability of the neutron spectrum characterization (f and α monitoring) in k0-NAA, based on 'bare monitor' methods with the use of these Zr radionuclides. So as to achieve this goal, experimental determinations were performed in three reactor centers: KFKI AEKI, Budapest (WWR-M reactor); INW, Gent (THETIS reactor); SCK-CEN, Mo1 (BR1 reactor). The results were: Q0(94Zr) = 5.306; Q0(96Zr) = 251.6; k0(95Zr, 724.2+756.7 keV) = 2.000E-4; k0(97mZr/97mNb, 743.4 keV) = 1.237E-5. This means that the newly evaluated k0-values are about 4.7% lower than the formerly reported ones. It is also emphasized that the 97Zr half-life is 16.74 hours, contrary to the -1% higher values usually reported.

AB - The k0 and Q0 values for 94Zr(n,γ)95Zr (E(γ) = 724.2+756.7 keV) and 96Zr(n,γ)97mZr (β-) 97mNb(E(γ) = 743.4 keV) were re- investigated. The aim was to further improve the reliability of the neutron spectrum characterization (f and α monitoring) in k0-NAA, based on 'bare monitor' methods with the use of these Zr radionuclides. So as to achieve this goal, experimental determinations were performed in three reactor centers: KFKI AEKI, Budapest (WWR-M reactor); INW, Gent (THETIS reactor); SCK-CEN, Mo1 (BR1 reactor). The results were: Q0(94Zr) = 5.306; Q0(96Zr) = 251.6; k0(95Zr, 724.2+756.7 keV) = 2.000E-4; k0(97mZr/97mNb, 743.4 keV) = 1.237E-5. This means that the newly evaluated k0-values are about 4.7% lower than the formerly reported ones. It is also emphasized that the 97Zr half-life is 16.74 hours, contrary to the -1% higher values usually reported.

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