Plutonium Biokinetics in Human Body A. Luciani - Kit-Bibliothek - FZK
Plutonium Biokinetics in Human Body A. Luciani - Kit-Bibliothek - FZK
Plutonium Biokinetics in Human Body A. Luciani - Kit-Bibliothek - FZK
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Table 2.3.4 Efficiency factors of phoswich detect<strong>in</strong>g system for 59.5 keV energy peak of 241 Am<br />
under different measurement positions (MP) and activity distributions (AD) of the<br />
radionuclide us<strong>in</strong>g LLNL and USTUR phantoms (time of measurement, t M, 2000<br />
s).<br />
MP - AD Detector Efficiency factors <strong>in</strong> impulse/t M<br />
per Bq of 241 Am <strong>in</strong> the respective organ<br />
Overlays [mm] for LLNL phantom<br />
19 25 29 36<br />
Lung - Lung D 1 34.0 30.1 26.6 23.6<br />
D 2 56.4 48.2 44.8 37.4<br />
Lung - Liver D 1 14.6 14.1 12.9 12.0<br />
D 2 32.2 29.0 26.9 23.5<br />
Lung – Lymph node D 1 23.3 21.6 18.6 16.7<br />
D 2 35.8 31.4 29.0 24.5<br />
Liver - Lung D 1 11.7 10.1 9.5 8.2<br />
D 2 5.0 5.0 4.8 4.6<br />
Liver - Liver D 1 71.7 65.2 58.7 50.1<br />
D 2 32.0 28.9 26.7 23.9<br />
Liver – Lymph node D 1 6.2 5.5 5.4 4.4<br />
D 2 3.7 3.4 3.1 2.9<br />
66<br />
USTUR phantom<br />
Lung - Skeleton D 1 2.14<br />
D 2 2.46<br />
Liver - Skeleton D 1 1.35<br />
D 2 1.55<br />
Knee - Skeleton D 1 7.00<br />
D 2 8.00<br />
Head – Skeleton D 1 7.70<br />
D 2 8.90<br />
D 3 5.60<br />
LLNL phantom<br />
Head - Lung D 1 1.09<br />
D 2 1.20<br />
D 3 1.50<br />
Head - Liver D 1 0.25<br />
D 2 0.28<br />
D 3 0.15<br />
Head – Lymph node D 1 1.09<br />
D 2 1.21<br />
D 3 1.12