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

Ho-164 29 min ec,  / ph 1.30E-11 9.50E-12 0.009 600 0.7 1.E+03 [1] 5.00E+08 6.00E+0510

Ho-164m 38.0 min it / ph 1.60E-11 1.60E-11 0.014 20 <0.1 1.E+03 [1] 4.00E+08 5.00E+05 1000  Ho-164 Ho-166 26.80 h / ph 8.30E-10 1.40E-09 0.005 1000 1.7 1.E+02 7.00E+06 1.00E+043

Ho-166m 1.20 E3 a  / ph 7.80E-08 2.00E-09 0.268 800 0.9 1.E-01 8.00E+04 1.00E+0210

Ho-167 3.1 h  / ph 1.00E-10 8.30E-11 0.061 1000 1.4 1.E+02 [1] 6.00E+07 8.00E+043

Er-161 3.21 h ec,  8.50E-11 8.00E-11 0.139 400 0.4 1.E+01 [1] 7.00E+07 1.00E+05 10  Ho-161 Er-165 10.36 h ec 1.40E-11 1.90E-11 0.011 7 <0.1 1.E+03 [1] 4.00E+08 6.00E+051000

Er-169 9.40 d  9.20E-10 3.70E-10 <0.001 1000 1 1.E+03 7.00E+06 9.00E+0310

Er-171 7.516 h  3.00E-10 3.60E-10 0.064 2000 1.9 1.E+02 2.00E+07 3.00E+04 3  Tm-171 Er-172 49.3 h  1.20E-09 1.00E-09 0.084 1000 1 1.E+01 5.00E+06 7.00E+03 10  Tm-172 Tm-162 21.70 min ec,  / ph 2.70E-11 2.90E-11 0.261 300 0.9 1.E+01 [1] 2.00E+08 3.00E+0510

Tm-166 7.70 h ec,  / ph 2.80E-10 2.80E-10 0.270 200 0.4 1.E+01 2.00E+07 3.00E+0410

Tm-167 9.25 d ec / ph 1.00E-09 5.60E-10 0.029 2000 1.1 1.E+02 [1] 6.00E+06 8.00E+033

Tm-170 128.6 d , ec / ph 5.20E-09 1.30E-09 0.001 1000 1.6 1.E+02 1.00E+06 2.00E+033

Tm-171 1.92 a  / ph 9.10E-10 1.10E-10 <0.001 <1 <0.1 1.E+03 7.00E+06 9.00E+031000

Tm-172 63.6 h  / ph 1.40E-09 1.70E-09 0.069 1000 1.5 1.E+01 4.00E+06 6.00E+033

Tm-173 8.24 h  / ph 2.60E-10 3.10E-10 0.063 1000 1.6 1.E+02 2.00E+07 3.00E+043

Tm-175 15.2 min ^/ ph 3.10E-11 2.70E-11 0.160 2000 2 1.E+01 [1] 2.00E+08 3.00E+05 3  Yb-175 Yb-162 18.87 min ec, ^/ ph 2.30E-11 2.30E-11 0.027 60 0.1 1.E+02 [1] 3.00E+08 4.00E+05 100  Tm-162 [6] Yb-166 56.7 h ec / ph 9.50E-10 9.50E-10 0.022 10 0.1 1.E+02 [1] 6.00E+06 9.00E+03 100  Tm-166 [6]

Yb-167 17.5 min ec,  / ph 9.50E-12 6.70E-12 0.053 200 0.4 1.E+02 [1] 6.00E+08 9.00E+05 10  Tm-167 Yb-169 32.026 d ec / ph 2.40E-09 7.10E-10 0.061 1000 1 1.E+01 3.00E+06 3.00E+0310

Yb-175 4.185 d  / ph 7.00E-10 4.40E-10 0.007 1000 1.1 1.E+02 9.00E+06 1.00E+043

Yb-177 1.911 h  / ph 9.40E-11 9.70E-11 0.028 1000 1.5 1.E+02 [1] 6.00E+07 9.00E+04 3  Lu-177 Yb-178 74 min  / ph 1.10E-10 1.20E-10 0.006 1000 1.3 1.E+03 [2] 5.00E+07 8.00E+04 3  Lu-178 Lu-169 34.06 h ec,  / ph 4.90E-10 4.60E-10 0.154 100 0.2 1.E+01 [1] 1.00E+07 2.00E+04 30  Yb-169 Lu-170 2.012 d ec,  / ph 9.50E-10 9.90E-10 0.281 60 0.3 1.E+01 [1] 6.00E+06 9.00E+0330

Lu-171 8.24 d ec,  / ph 9.30E-10 6.70E-10 0.115 30 0.1 1.E+01 6.00E+06 9.00E+03100

Lu-172 6.70 d ec,  / ph 1.80E-09 1.30E-09 0.283 300 0.5 1.E+00 3.00E+06 5.00E+0310

Lu-173 1.73 a ec / ph 1.50E-09 2.60E-10 0.028 30 0.1 1.E+00 4.00E+06 6.00E+03100

Lu-174 3.31 a ec,  / ph 2.90E-09 2.70E-10 0.024 10 <0.1 1.E+00 2.00E+06 3.00E+031000