Radioactive Isotopes Flashcards
Half-life of Ra-225
1600 years
Half-life of Rn-222
3.83 days
Half-life of Co-60
5.26 yrs
Half-life of Cs-137
30 yrs
Half-life of Ir-192
73.8 days
Half-life of Au-198 (gold)
2.7 days
Half-life of I-125
59.4 days
Half-life of Pd-103
17 days
Photon E (MeV) of Radium
0.83 avg
Photon E (MeV) of Rn-222
0.83 avg
Photon E (MeV) of Co-60
1.17; 1.33 (1.25 avg)
Photon E (MeV) of Cs-137
0.662
Photon E (MeV) of Ir-192
0.38 avg
Photon E (MeV) of Au-198
0.412
Photon E (MeV) of I-125
0.028 avg
Photon E (MeV) of Pd-103
0.021 avg
Exposure Rate Constant (Γ) of Radium
8.25 R-cm^2/mg-hr
Exposure Rate Constant (Γ) of Rn-222
10.15 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of Co-60
13.07 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of Cs-137
3.26 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of Ir-192
4.69 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of Au-198
2.38 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of I-125
1.46 R-cm^2/mCi-hr
Exposure Rate Constant (Γ) of Pd-103
1.48 R-cm^2/mCi-hr