Determination of the absolute intensity of the 1205 keV γ-ray emission from 91Y

被引：0

作者：

Gilligan, C. R. D. ^{[1
]}

Stokes, T. C. ^{[1
]}

Goodwin, M. A. ^{[1
]}

John, D. ^{[1
]}

Wroe-Brown, J. ^{[1
]}

Higginson, M. ^{[1
]}

McLarty, J. L. ^{[1
]}

机构：

[1] AWE Plc Aldermaston, Reading RG7 4PR, Berks, England

来源：

APPLIED RADIATION AND ISOTOPES | 2024年 / 205卷

关键词：

Yttrium-91; Y-91; Gamma emission intensity; Gamma intensity; High purity germanium; Gamma spectrometry; Liquid scintillation counting; Radiation measurement; Radiometrology; Nuclear data;

D O I：

10.1016/j.apradiso.2023.111172

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A radiochemically pure solution of 91Y was produced by the thermal neutron fission of 235U followed by successive chemical separations to remove fission product impurities. The gamma emission rate of the 91Y 1205 keV gamma was measured using multiple high purity germanium gamma spectrometers previously calibrated for counting efficiency using a certificated mixed nuclide gamma standard. The activity concentration of the 91Y was subsequently standardised by liquid scintillation counting. From the combination the activity concentration and gamma emission intensity, the absolute intensity of the 1205 keV gamma emission was derived as 0.2297(39)%. This data agrees within the quoted uncertainties with the absolute intensity of 0.26(4)% published in nuclear data sheets A=91 (Baglin, 2013), but reduces the uncertainty by an order of magnitude.

引用

页数：6

共 6 条

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[3] A Suggested Modification of the Fundamental Parameter Method: A Case Study to Calculate the Optimum Absolute Intensity of 1001.03 keV Gamma-Ray Transition
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[5] Measurement of the absolute gamma-ray emission intensities from the decay of 103Pd
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APPLIED RADIATION AND ISOTOPES, 2021, 167
[6] The potential radio-immunotherapeutic α-emitter 227Th - part II: Absolute γ-ray emission intensities from the excited levels of 223Ra
Collins, S. M.
Keightley, J. D.
Ivanov, P.
Arinc, A.
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