Author/Authors :
Sauvage، نويسنده , , T. and Erramli، نويسنده , , H. and Guilbert، نويسنده , , S. J. Vincent ، نويسنده , , L. and Barthe، نويسنده , , M.-F. and Desgardin، نويسنده , , P. and Blondiaux، نويسنده , , G. and Corbel، نويسنده , , C. and Piron، نويسنده , , J.P. and Labohm، نويسنده , , F. and Van Veen، نويسنده , , A.، نويسنده ,
Abstract :
Profiling of 3He implanted in sintered uranium dioxide pellets was performed using 3He(d, α)1H Nuclear Reaction Analysis technique. To accurate profile measurements, the cross-section of the 3He(d, p)4He nuclear reaction was carefully measured with a relative standard deviation of 5%. The total cross-section represented by a fit function is compared with data from literature. With the described coincidence arrangement, we obtained a reduction by a factor ≈4 × 104 of the signal of deuterons elastically scattered in uranium and a total suppression of parasite signals in the region of helium profiling. This technique enables us to measure helium profile in UO2 a couple of microns below the surface with a resolution of 0.1 μm and a detection limit of 0.01 at.%.
