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Journal of Environmental Waste Management and Recycling | Volume 1

March 05-06, 2018 | London, UK

Recycling & Waste Management

International Conference on

Nondestructive nuclear measurement of radioactive waste

Bertrand Perot

The French Alternative Energies and Atomic Energy Commission, France

wide range of nuclear nondestructive measurements

are carried out by CEA to achieve the most complete

characterization of radioactive waste packages. High-energy

photon imaging (radiography, tomography) allows determining

the main properties of the packages, such as the density,

position and shape of thewaste inside the container, the quality

of coating or blocking materials (resin, bitumen, hydraulic

binder…), the presence of internal shields, structures, cracks,

voids, defects, liquids, forbidden materials, etc. Radiological

assessment is then performed using the widespread gamma-

ray spectroscopy, which allows characterizing a broad range

of radioactive and nuclear materials, but also passive neutron

coincidence counting and active neutron interrogation with the

differential die-away technique to measure nuclear materials.

In view to assess the latter in the largest and densest packages,

active photon interrogation with high-energy photons (above

the photofission threshold of ~ 6MeV) is a promising technique

currently under development at CEA. Prompt gamma neutron

activation analysis is also being studied to detect toxic

chemicals, or elements influencing the above measurements,

such as neutron moderators or absorbers. The latter technique

could also be used in the future to assess valuable materials in

nonnuclear waste, such as precious metals (gold, platinum…) or

rare earth elements in electronic waste.

Speaker Biography

Bertrand Perot was graduated in 1992 from the Physics Engineers School of Grenoble,

France, and he obtained a PhD from Grenoble University in 1996. He worked for a

few years at AREVA in the field of nuclear process control, mainly for AREVA La Hague

reprocessing plant (Northwestern France). Then he joined CEA Cadarache (in South

France) to developed nondestructive measurement methods for the nuclear fuel

cycle, especially radioactive waste characterization and for homeland security through

European projects. He obtained in 2012 the University accreditation to supervise PhD

studies (the so-called “HDR”) and he was appointed CEA International Expert in 2014.

He has about 100 publications or communications and his H-index is 10.