Avamprogetti

Grandezze di apprezzamento Livello di Livello di licenza Vincoli

esenzione

Radionuclide Tempo di Tipo di decadi- einh eing h10 h0,07 hc0,07 LL LA CA CS Nuclide figlio instabile

dimezzamento mento e di Sv/Bq Sv/Bq (mSv/h)/ (mSv/h)/GBq (mSv/h)/ Bq/g Bq Bq/m3 Bq/cm2

radiazione GBq a 1 m a 10 cm di (kBq/cm2)

di distanza distanza

1 2  4 5 6 7 8 9 10 11 1213

 Ba-131 11.50 d ec / ph 3.50E-10 4.50E-10 0.087 300 0.4 1.E+01 2.00E+07 2.00E+04 10  Cs-131 Ba-131m 14.6 min it / ph 6.40E-12 4.90E-12 0.019 50 0.4 1.E+02 [1] 9.00E+08 1.00E+06 10  Ba-131 Ba-133 10.52 a ec / ph 1.80E-09 1.00E-09 0.085 70 0.1 1.E-01 3.00E+06 5.00E+03100

Ba-133m 38.9 h it, ec / ph 2.80E-10 5.50E-10 0.019 2000 1.5 1.E+02 2.00E+07 3.00E+04 3  Ba-133 Ba-135m 28.7 h it / ph 2.30E-10 4.50E-10 0.018 2000 1.5 1.E+02 3.00E+07 4.00E+043

Ba-139 83.06 min  / ph 5.50E-11 1.20E-10 0.012 1000 1.7 1.E+02 [1] 1.00E+08 2.00E+053

Ba-140 12.752 d ^/ ph 1.60E-09 2.50E-09 0.031 1000 1.5 1.E+00 4.00E+06 5.00E+03 3  La-140 [6] Ba-141 18.27 min ^/ ph 3.50E-11 7.00E-11 0.152 1000 1.9 1.E+02 [1] 2.00E+08 2.00E+05 3  La-141 Ba-142 10.6 min ^/ ph 2.70E-11 3.50E-11 0.160 1000 1.7 1.E+02 [1] 2.00E+08 3.00E+05 3  La-142 [6]

La-131 59 min ec,  / ph 3.60E-11 3.50E-11 0.116 400 0.6 1.E+01 [1] 2.00E+08 2.00E+05 10  Ba-131 La-132 4.8 h ec,  / ph 2.80E-10 3.90E-10 0.379 400 0.8 1.E+01 [1] 2.00E+07 3.00E+0410

La-135 19.5 h ec,  / ph 2.50E-11 3.00E-11 0.017 2 <0.1 1.E+03 2.00E+08 3.00E+051000

La-137 6.0 E4 a ec / ph 1.00E-08 8.10E-11 0.014 2 <0.1 1.E+02 6.00E+05 8.00E+021000

La-138 1.02 E11 a ec,  / ph 1.80E-07 1.10E-09 0.185 400 0.4 1.E-01 3.00E+04 5.00E+0110

La-140 1.6781 d  / ph 1.50E-09 2.00E-09 0.332 1000 1.8 1.E+00 4.00E+06 6.00E+033

La-141 3.92 h  / ph 2.20E-10 3.60E-10 0.016 1000 1.6 1.E+02 [1] 3.00E+07 4.00E+04 3  Ce-141 La-142 91.1 min  / ph 1.50E-10 1.80E-10 0.490 1000 1.8 1.E+01 [1] 4.00E+07 6.00E+043

La-143 14.2 min  / ph 3.30E-11 5.60E-11 0.219 1000 1.6 1.E+02 [1] 2.00E+08 3.00E+05 3  Ce-143 Ce-134 / La -134 3.16 d ec,  / ph 1.60E-09 2.50E-09 0.149 600 1 1.E+03 [2] 4.00E+06 5.00E+0310

Ce-135 17.7 h ec,  / ph 7.60E-10 7.90E-10 0.271 2000 1.8 1.E+01 8.00E+06 1.00E+04 3  La-135 Ce-137 9.0 h ec,  / ph 1.90E-11 2.50E-11 0.016 10 <0.1 1.E+03 3.00E+08 4.00E+05 1000  La-137 Ce-137m 34.4 h it, ec / ph 5.90E-10 5.40E-10 0.016 2000 1.6 1.E+02 [2] 1.00E+07 1.00E+04 3  Ce-137, La-137 Ce-139 137.641 d ec / ph 1.40E-09 2.60E-10 0.036 500 0.5 1.E+00 4.00E+06 6.00E+0310

Ce-141 32.508 d  / ph 3.10E-09 7.10E-10 0.014 2000 1.6 1.E+02 2.00E+06 3.00E+033

Ce-143 33.039 h  / ph 1.00E-09 1.10E-09 0.053 1000 1.6 1.E+01 6.00E+06 8.00E+03 3  Pr-143 Ce-144 / Pr-144m 284.91 d  / ph 2.90E-08 5.20E-09 0.005 800 0.9 1.E+01 [2] 2.00E+05 3.00E+02 10  Pr-144 Pr-136 13.1 min ec,  / ph 2.50E-11 3.30E-11 0.375 600 1.1 1.E+01 [1] 2.00E+08 3.00E+053

Pr-137 1.28 h ec,  / ph 3.50E-11 4.00E-11 0.083 300 0.5 1.E+02 [1] 2.00E+08 2.00E+05 10  Ce-137 Pr-138m 2.12 h ec,  / ph 1.30E-10 1.30E-10 0.379 600 0.8 1.E+01 [1] 5.00E+07 6.00E+0410