Transmutation of technetium: results of the EFTTRA-T1 experiment

被引：18

作者：

Konings, RJM

Stalios, AD

Walker, CT

Cocuaud, N

机构：

[1] Netherlands Energy Res Fdn, ECN, NL-1755 ZG Petten, Netherlands

[2] Inst Transuranium Elements, CEC Joint Res Ctr, D-76125 Karlsruhe, Germany

[3] CEA, Ctr Cadarache, F-13108 St Paul Durance, France

来源：

JOURNAL OF NUCLEAR MATERIALS | 1998年 / 254卷 / 2-3期

关键词：

D O I：

10.1016/S0022-3115(98)00006-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The transmutation of the fission product Tc-99 was studied by neutron irradiation in the High Flux Reactor at Petten. Six metallic rods of pure Tc, distributed over three capsules, were irradiated during eight reactor cycles to a total neutron fluence of about 2 x 10(26) m(-2). Metallographic examinations showed that no changes in the microstructure were visible after the irradiation. Electron probe microanalysis (EPMA) of the radial distribution of Ru, the product of the transmutation process, showed an increase from about 6% in the centre to 12-18% near the rim of the pellets. This effect is due to resonance-shielding of epithermal neutrons in the rim region. Mass spectrometric analysis of the pellet-average Ru concentration showed that the extent of transmutation is about 6-7%. (C) 1998 Elsevier Science B.V.

引用

页码：122 / 128

页数：7

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