Portal de Periódicos da CAPES

Plutonium fallout in Southern Finland after the chernobyl accident

1993; Elsevier BV; Volume: 21; Issue: 2 Linguagem: Inglês

10.1016/0265-931x(93)90049-d

1879-1700

Auvo Reponen, Matti Jantunen, Jussi Paatero, Timo Jaakkola,

Radioactive element chemistry and processing

The plutonium concentrations of fuel peat samples from southern and central Finland were analyzed. The same samples had previously gone through gamma-spectrometric analysis, in which the detected nuclides could be divided into two groups by calculating correlations between activities: the volatile Cs-I group and the non-volatile Ce-Zr group. The plutonium of Chernobyl origin correlates rather well with the non-volatile group and not at all with the volatile group. The volatile group comprises the nuclides 137Cs, 134Cs, 131I and 132Te, and the non-volatile group 95Zr, 141Ce and Chernobyl-Pu.