An Innovative Acoustic Sensor for In-Pile Fission Gas Composition Measurements

被引：8

作者：

Rosenkrantz, E. ^{[1
]}

Ferrandis, J. Y. ^{[1
]}

Augereau, F. ^{[1
]}

Lambert, T. ^{[2
]}

Fourmentel, D. ^{[3
]}

Tiratay, X. ^{[4
]}

机构：

[1] Univ Montpellier 2, CNRS, Southern Elect Inst, UMR5214, F-34095 Montpellier, France

[2] CEA, Nucl Energy Direct, Fuel Studies Dept Cadarache, F-13108 St Paul Les Durance, France

[3] CEA Cadarache, Reactor Studies Dept, French Nucl Energy & Alternat Energies Commiss, F-13108 St Paul Les Durance, France

[4] CEA, Nucl Energy Div, Nucl Reactors & Facil Dept, F-91191 Gif Sur Yvette, France

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2013年 / 60卷 / 02期

关键词：

Acoustic sensors; material testing reactor; non-destructive evaluation fission gasses;

D O I：

10.1109/TNS.2013.2252624

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article we propose a new method able to determine the fission gas composition using in situ ultrasonic waves measurements. To do so an acoustic resonator was connected to a fuel rodlet, in order to perform speed of sound measurements of gas mixture (Helium and fission gases) inside the plenum. By using a dedicated signal processing the peaks due to resonant frequencies inside the gas mixture were successfully extracted from the output signal. From these data, the variations of helium and fission gas molar fraction were calculated using an adapted virial state equation. It will be proved that these data provide important information about the kinetics of gas release and about the effects of high neutron and gamma irradiation on piezoceramic sensors.

引用

页码：1346 / 1353

页数：8

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