Figure 1
Annual ambient dose equivalent H*(10) averaged over nine locations at the fence of NPP Krško (155 m.a.s.l., white triangles) and over three locations in the nearby town of Krško (black dots) and annual number of sunspots (white dots) (13)
Figure 2
Annual ambient dose equivalent H*(10) at the locations Kusova Vrbina (black dots), Amerika (triangles), and Gmajnice (crosses) near NPP Krško, and the annual number of sunspots (white dots) (13)
Figure 3
Annual ambient dose equivalent H*(10) at three locations in western Slovenia: Kredarica (2515 m.a.s.l., black dots), Trenta (624 m.a.s.l., crosses), and Sečovlje (2 m.a.s.l., triangles) and the annual number of sunspots (white dots)
Table 1
Mean annual ambient dose equivalents H*(10) measured around NPP Krško, and the rest of Slovenia, and calculated contribution of cosmic rays, from 2002 to 2019. The uncertainties of the measured values are 7.5 % and correspond to the expanded uncertainty due to the standard deviations of the indications of both semi-annual measurements
| Year | H*(10)NPP (mSv) | H*(10)rSlovenia (mSv) | H*(10)cosmic rays (mSv) |
|---|---|---|---|
| 2002 | 0.791 | 0.792 | 0.297 |
| 2003 | 0.769 | 0.791 | 0.297 |
| 2004 | 0.765 | 0.793 | 0.279 |
| 2005 | 0.827 | 0.864 | 0.302 |
| 2006 | 0.783 | 0.846 | 0.310 |
| 2007 | 0.766 | 0.840 | 0.314 |
| 2008 | 0.822 | 0.868 | 0.314 |
| 2009 | 0.837 | 0.922 | 0.317 |
| 2010 | 0.793 | 0.886 | 0.317 |
| 2011 | 0.738 | 0.899 | 0.315 |
| 2012 | 0.806 | 0.881 | 0.313 |
| 2013 | 0.803 | 0.877 | 0.311 |
| 2014 | 0.763 | 0.849 | 0.305 |
| 2015 | 0.829 | 0.895 | 0.306 |
| 2016 | 0.814 | 0.902 | 0.311 |
| 2017 | 0.823 | 0.895 | 0.316 |
| 2018 | 0.829 | 0.870 | 0.316 |
| 2019 | 0.833 | 0.910 | 0.316 |
Table 2
Correlation between annual mean number of sunspots (n), and annual ambient dose equivalent [H*(10)] measured around NPP Krško (at 155 m.a.s.l.) and five locations in western Slovenia (Kredarica, Trenta, Stara Fužina, Bilje, and Sečovlje)
| Location | r[H*(10), n] | imin | Location | r[H*(10), n] | imin |
|---|---|---|---|---|---|
| NPP nine fence, locations mean value over | -0.28 | 2006 | Kredarica, 2515 m.a.s.l. | -0.69 | 2004 |
| Krško locations mean value over three | -0.46 | 2006 | Trenta, 624 m.a.s.l. | -0.55 | 2003 |
| Kusova Vrbina | -0.54 | 2000 | Stara Fužina, 547 m.a.s.l. | -0.53 | 2008 |
| Amerika | -0.44 | 2003 | Bilje, 55 m.a.s.l. | -0.38 | 1995 |
| Gmajnice | -0.38 | 2003 | Sečovlje, 2 m.a.s.l | -0.52 | 1992 |