Experimental study on the detection of free fluids and gases in waste packages by acoustic methods
The objective of the project was to evaluate the potential and the limits of various non-destructive methods for testing the contents of 200 litre drums filled with radioactive waste. The following test problems were to be studied: (1) detection of free water on the surface of the waste matrix (concrete); (2) determination of the waste matrix level; (3) determination of internal gas pressure. The following methods were found to be suitable: For test problem (1): - measurement of Lamb wave attenuation, - acoustic impedance measurement (AIM) and - analysis of swash sound; For test problem (2): - acoustic impedance measurement (AIM) and - measurement of Lamb wave attenuation; For test problem (3): - a method of pressure compensation and - analysis of cover resonances after striking the cover. It was not possible to detect the concrete level by localisation of friction points using acoustic emission methods.
Bibliographic Reference: EUR 13868 EN (1992) 74 pp., FS, ECU 7.50
ISBN: ISBN 92-826-3398-5
Record Number: 199210348 / Last updated on: 1994-12-02
Original language: en
Available languages: en