Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Depth profiling 137Cs and 60Co non-intrusively for a suite of industrial shielding materials and at depths beyond 50mm
AU - Adams, Jamie
AU - Joyce, Malcolm
AU - Mellor, M.
PY - 2012/7
Y1 - 2012/7
N2 - A phantom has been used to position two radiation sources, separately, when buried under dry-silica sand at depths between 5 and 50 mm. A γ-ray energy spectrum was then measured at every 1 mm depth. Principal component analysis has been conducted, which has led to anon-linear fit being established, allowing the depth of entrainment to be accurately inferred. The technique has been expanded for additional shielding media: water, aggregate and both wet and dry soil. The technique has also been expanded beyond the previous depth constraint of 50 mm.
AB - A phantom has been used to position two radiation sources, separately, when buried under dry-silica sand at depths between 5 and 50 mm. A γ-ray energy spectrum was then measured at every 1 mm depth. Principal component analysis has been conducted, which has led to anon-linear fit being established, allowing the depth of entrainment to be accurately inferred. The technique has been expanded for additional shielding media: water, aggregate and both wet and dry soil. The technique has also been expanded beyond the previous depth constraint of 50 mm.
KW - Depth profiling
KW - Radioactive contamination
KW - Gamma spectrometry
KW - Cadmium telluride
KW - Principal component analysis
KW - Shielding
U2 - 10.1016/j.apradiso.2011.11.033
DO - 10.1016/j.apradiso.2011.11.033
M3 - Journal article
VL - 70
SP - 1150
EP - 1153
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
SN - 0969-8043
IS - 7
ER -