Characterization of proton irradiation-induced defect in the A508-3 steel by slow positron beam

Positron beam and RBS studies of thermally grown oxide films on stainless steel grade 304

“…The positron diffusion length in the 8 ± 1 nm thick oxide layer is 4.2 ± 0.9 nm, while in the bulk it is about 94 ± 3 nm. Qiang-mao et al [28] evaluated L + in A 508-3 steel on the level of 100 nm. Wu and Jean [29] found that the thickness of the oxide film for 304 and 316 stainless steels is 20 nm and 5 nm and positron diffusion length is 11 nm and 5 nm, respectively.…”

Helium and hydrogen irradiation induced hardening in CLAM steel

“…Fig. 1 shows the depth distribution of irradiation in the CLAM steel calculated in terms of displacement damage using the SRIM2008 code, according to the NRT formula [19]:…”

Positron Beam Characteristics of Heavy Ion Irradiated Silver

“…Note that the positron lifetime studies of Xe 26+ implanted silver, investigated in other contexts, only proved the existence of dislocations [24]. However, taking the assumption that only this type of defect is generated, as was done in the case of investigations reported in [22], would be an exaggeration. The measurements from [24] were performed using a positron emitted directly from a conventional positron source 22 Na.…”

“…The parameter more sensitive to detects concentration is the positron diffusion length. It is given according to the following formula [22]…”