Gilson and Voss - Voss Associates
Gilson and Voss - Voss Associates
Gilson and Voss - Voss Associates
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Energy & Yield of neutrons from the alpha, n reaction<br />
neutron<br />
ç energy<br />
mrem/hr per Ci<br />
MeV n/s/GBq n/s/Ci @ 30 cm<br />
227<br />
Ac Be av 5 7.02E5 2.6E7 289<br />
226<br />
Ra Be av 4.5 5.02E5 1.9E7 211<br />
226<br />
Ra B 3.0 8.0E4 3.0E5 3.3<br />
210<br />
Po Be 4.2 7.1E4 2.6E6 28.9<br />
210<br />
Po Li 0.48 1.2E3 4.4E4 0.49<br />
210<br />
Po B 2.5 1.0E3 3.7E5 4.1<br />
210<br />
Po F 0.42 3E3 1.1E5 1.2<br />
226 227<br />
Ra <strong>and</strong> Ac include progeny effects<br />
Energy & Yield of neutrons from the alpha, n reaction<br />
neutron<br />
ç energy<br />
mrem/hr per Ci<br />
MeV n/s/GBq n/s/Ci @ 30 cm<br />
227<br />
Ac Be av 5 7.02E5 2.6E7 289<br />
226<br />
Ra Be av 4.5 5.02E5 1.9E7 211<br />
226<br />
Ra B 3.0 8.0E4 3.0E5 3.3<br />
210<br />
Po Be 4.2 7.1E4 2.6E6 28.9<br />
210<br />
Po Li 0.48 1.2E3 4.4E4 0.49<br />
210<br />
Po B 2.5 1.0E3 3.7E5 4.1<br />
210<br />
Po F 0.42 3E3 1.1E5 1.2<br />
226 227<br />
Ra <strong>and</strong> Ac include progeny effects<br />
Energy & Yield for 5.2 MeV<br />
alpha particles for various elements<br />
á, ç sources ç energy (MeV) n/s/GBq n/s/Ci<br />
Li 0.3 1.13E3 4.2E4<br />
Be 4.2 6.5E4 2.4E6<br />
B 2.9 1.75E4 6.5E5<br />
C 4.4 7.8E1 2.9E3<br />
O 1.9 5.9E1 2.2E3<br />
F 1.2 5.9E3 2.2E5<br />
Na ? 1.1E3 4.1E4<br />
Mg 2.7 8.9E2 3.3E4<br />
Al 1.0 4.1E2 1.5E4<br />
Si 1.2 7.6E1 2.8E3<br />
Cl ? 7E1 2.6E3<br />
Page 133<br />
Energy & Yield for 5.2 MeV<br />
alpha particles for various elements<br />
á, ç sources ç energy (MeV) n/s/GBq n/s/Ci<br />
Li 0.3 1.13E3 4.2E4<br />
Be 4.2 6.5E4 2.4E6<br />
B 2.9 1.75E4 6.5E5<br />
C 4.4 7.8E1 2.9E3<br />
O 1.9 5.9E1 2.2E3<br />
F 1.2 5.9E3 2.2E5<br />
Na ? 1.1E3 4.1E4<br />
Mg 2.7 8.9E2 3.3E4<br />
Al 1.0 4.1E2 1.5E4<br />
Si 1.2 7.6E1 2.8E3<br />
Cl ? 7E1 2.6E3<br />
Page 133<br />
Energy & Yield of neutrons from the alpha, n reaction<br />
neutron<br />
ç energy<br />
mrem/hr per Ci<br />
MeV n/s/GBq n/s/Ci @ 30 cm<br />
227<br />
Ac Be av 5 7.02E5 2.6E7 289<br />
226<br />
Ra Be av 4.5 5.02E5 1.9E7 211<br />
226<br />
Ra B 3.0 8.0E4 3.0E5 3.3<br />
210<br />
Po Be 4.2 7.1E4 2.6E6 28.9<br />
210<br />
Po Li 0.48 1.2E3 4.4E4 0.49<br />
210<br />
Po B 2.5 1.0E3 3.7E5 4.1<br />
210<br />
Po F 0.42 3E3 1.1E5 1.2<br />
226 227<br />
Ra <strong>and</strong> Ac include progeny effects<br />
Energy & Yield of neutrons from the alpha, n reaction<br />
neutron<br />
ç energy<br />
mrem/hr per Ci<br />
MeV n/s/GBq n/s/Ci @ 30 cm<br />
227<br />
Ac Be av 5 7.02E5 2.6E7 289<br />
226<br />
Ra Be av 4.5 5.02E5 1.9E7 211<br />
226<br />
Ra B 3.0 8.0E4 3.0E5 3.3<br />
210<br />
Po Be 4.2 7.1E4 2.6E6 28.9<br />
210<br />
Po Li 0.48 1.2E3 4.4E4 0.49<br />
210<br />
Po B 2.5 1.0E3 3.7E5 4.1<br />
210<br />
Po F 0.42 3E3 1.1E5 1.2<br />
226 227<br />
Ra <strong>and</strong> Ac include progeny effects<br />
Energy & Yield for 5.2 MeV<br />
alpha particles for various elements<br />
á, ç sources ç energy (MeV) n/s/GBq n/s/Ci<br />
Li 0.3 1.13E3 4.2E4<br />
Be 4.2 6.5E4 2.4E6<br />
B 2.9 1.75E4 6.5E5<br />
C 4.4 7.8E1 2.9E3<br />
O 1.9 5.9E1 2.2E3<br />
F 1.2 5.9E3 2.2E5<br />
Na ? 1.1E3 4.1E4<br />
Mg 2.7 8.9E2 3.3E4<br />
Al 1.0 4.1E2 1.5E4<br />
Si 1.2 7.6E1 2.8E3<br />
Cl ? 7E1 2.6E3<br />
Page 133<br />
Energy & Yield for 5.2 MeV<br />
alpha particles for various elements<br />
á, ç sources ç energy (MeV) n/s/GBq n/s/Ci<br />
Li 0.3 1.13E3 4.2E4<br />
Be 4.2 6.5E4 2.4E6<br />
B 2.9 1.75E4 6.5E5<br />
C 4.4 7.8E1 2.9E3<br />
O 1.9 5.9E1 2.2E3<br />
F 1.2 5.9E3 2.2E5<br />
Na ? 1.1E3 4.1E4<br />
Mg 2.7 8.9E2 3.3E4<br />
Al 1.0 4.1E2 1.5E4<br />
Si 1.2 7.6E1 2.8E3<br />
Cl ? 7E1 2.6E3<br />
Page 133
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