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Fine structure of the absorbed dose rate monitored in Zagreb, Croatia, in the period 1985-2011 (CROSBI ID 188506)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Babić, Dinko ; Senčar, Jasminka ; Petrinec, Branko ; Marović, Gordana ; Bituh, Tomislav ; Skoko, Božena Fine structure of the absorbed dose rate monitored in Zagreb, Croatia, in the period 1985-2011 // Journal of environmental radioactivity, 118 (2013), 75-79. doi: 10.1016/j.jenvrad.2012.11.012

Podaci o odgovornosti

Babić, Dinko ; Senčar, Jasminka ; Petrinec, Branko ; Marović, Gordana ; Bituh, Tomislav ; Skoko, Božena

engleski

Fine structure of the absorbed dose rate monitored in Zagreb, Croatia, in the period 1985-2011

We report on the fine structure of the absorbed dose rate D which was measured and recorded on a daily basis at the Institute for Medical Research and Occupational Health in Zagreb, Croatia, throughout the period 1985-2011. After the Chernobyl accident, D increased steeply by a factor of 3.5, but this is the only prominent feature in the D versus time (t) curve. In the absence of accidental conditions, the D(t) is flat and amounts to 30-35 pGy/s. Despite the apparent plainness of D(t), its Fourier transform reveals several periodic modulations hidden in the noise. Some of the corresponding periods (6 and 12 months) can be related to seasonal atmospheric changes but this is not the case with the other periods identified (9.3, 13.7, 15.7, 20, 31, and 39 months). These are found to agree well with literature data on periodicities in solar activity, which implies that they are most probably linked to variations in the atmospheric production of 7Be by cosmic rays.

dose rate ; periodic behaviour ; seasonal trend ; 7Be ; atmosphere

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Podaci o izdanju

118

2013.

75-79

objavljeno

0265-931X

1879-1700

10.1016/j.jenvrad.2012.11.012

Povezanost rada

Fizika, Interdisciplinarne prirodne znanosti, Javno zdravstvo i zdravstvena zaštita

Poveznice
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