Vorlagen

Beurteilungsgrössen Freigrenze Bewilligungs- Richtwerte

grenze

Radionuklid Halbwertszeit Zerfallsart/ einh eing h10 h0,07 hc0,07 LL LA CA CS Instabiles Tochternuklid

Strahlung Sv/Bq Sv/Bq (mSv/h)/ (mSv/h)/GBq (mSv/h)/ Bq/g Bq Bq/m3 Bq/cm2

GBq in 1 min 10 cm Ab-(kBq/cm2)

Abstand stand

1 2  4 5 6 7 8 9 10 11 1213

U-233 1.592 E5 a  / ph 6.90E-06 5.00E-08 0.001 2 <0.1 1.E+00 9.00E+02 1.00E+00 3  Th-229

U-234 2.455 E5 a  / ph 6.80E-06 4.90E-08 0.002 3 <0.1 1.E+00 9.00E+02 1.00E+00 3  Th-230

U-235 7.04 E8 a  / ph 6.10E-06 4.60E-08 0.028 100 0.2 1.E+00 [2] 1.00E+03 1.00E+00 3  Th-231

U-236 2.342E7 a  / ph 6.30E-06 4.60E-08 0.002 1 <0.1 1.E+01 [1] 1.00E+03 1.00E+00 3  Th-232

U-237 6.75 d ^/ ph 1.70E-09 7.70E-10 0.037 1000 1.6 1.E+02 4.00E+06 5.00E+03 3  Np-237

U-238 4.468 E9 a , fs / ph 5.70E-06 4.40E-08 0.002 1 <0.1 1.E+00 [2] 1.00E+03 1.00E+00 10  Th-234

U-239 23.45 min ^/ ph 3.50E-11 2.80E-11 0.012 1000 1.6 1.E+02 [1] 2.00E+08 2.00E+05 3  Np-239

U-240 14.1 h ^/ ph 8.40E-10 1.10E-09 0.009 1000 1 1.E+02 [2] 7.00E+06 1.00E+04 10  Np-240

U nat (+ Töchter) 0.296 6000 7.1 siehe An-1

hang 2

Np-232 14.7 min ec, ^/ ph 3.50E-11 9.70E-12 0.199 400 0.6 1.E+01 [1] 2.00E+08 2.00E+05 10  U-232

Np-233 36.2 min ec,  / ph 3.00E-12 2.20E-12 0.022 40 <0.1 1.E+02 [1] 2.00E+09 3.00E+06 1000  U-233

Np-234 4.4 d ec, ^/ ph 7.30E-10 8.10E-10 0.219 80 0.2 1.E+01 8.00E+06 1.00E+04 30  U-234

Np-235 396.1 d ec,  / ph 2.70E-10 5.30E-11 0.008 3 <0.1 1.E+03 2.00E+07 3.00E+04 1000  U-235, Pa-231 Np-236 1.54 E5 a ec, ^,  / ph 2.00E-06 1.70E-08 0.046 1000 1.8 1.E+00 3.00E+03 4.00E+00 3  U-236, Pu-236 Np-236m 22.5 h ec, ^/ ph 3.60E-09 1.90E-10 0.013 600 0.6 1.E+02 2.00E+06 2.00E+03 10  U-236, Pu-236 Np-237 2.144 E6 a  / ph 1.50E-05 1.10E-07 0.018 30 0.1 1.E+00 [2] 4.00E+02 6.00E-01 3  Pa-233

Np-238 2.117 d ^/ ph 1.70E-09 9.10E-10 0.089 1000 1.1 1.E+01 4.00E+06 5.00E+03 3  Pu-238

Np-239 2.3565 d ^/ ph 1.10E-09 8.00E-10 0.039 2000 2.3 1.E+02 5.00E+06 8.00E+03 3  Pu-239

Np-240 61.9 min ^/ ph 1.30E-10 8.20E-11 0.225 3000 3.4 1.E+01 [1] 5.00E+07 6.00E+04 1  Pu-240

Np-240m 7.22 min ^, it / ph 0.060 1000 1.6 1.E+03 3  Pu-240

Pu-234 8.8 h ec,  / ph 1.80E-08 1.60E-10 0.018 6 <0.1 1.E+02 [1] 3.00E+05 5.00E+02 1000  Np-234, U-230 Pu-235 25.3 min ec,  / ph 2.60E-12 2.10E-12 0.026 8 <0.1 1.E+02 [1] 2.00E+09 3.00E+06 1000  Np-235, U-231 Pu-236 2.858 a , fs / ph 1.30E-05 8.60E-08 0.003 1 <0.1 1.E+00 5.00E+02 6.00E-01 3  U-232

Pu-237 45.2 d ec,  / ph 3.00E-10 1.00E-10 0.018 6 <0.1 1.E+02 2.00E+07 3.00E+04 1000  Np-237, U-233 Pu-238 87.7 a , fs / ph 3.00E-05 2.30E-07 0.002 <1 <0.1 1.E-01 2.00E+02 3.00E-01 1  U-234

Pu-239 2.411 E4 a  / ph 3.20E-05 2.50E-07 0.001 <1 <0.1 1.E-01 [2] 2.00E+02 3.00E-01 1  U-235

Pu-240 6564 a , fs / ph 3.20E-05 2.50E-07 0.002 <1 <0.1 1.E-01 2.00E+02 3.00E-01 1  U-236

Pu-241 14.35 a ^, a 5.80E-07 4.70E-09 <0.001 <1 <0.1 1.E+01 1.00E+04 1.00E+01 30  Am-241, U-237 Pu-242 3.75 E5 a , fs / ph 3.10E-05 2.40E-07 0.002 <1 <0.1 1.E-01 2.00E+02 3.00E-01 1  U-238