Review Article

Studying the Earth with Geoneutrinos

Table 2

Main characteristics of the Borexino and KamLAND detectors.

Borexino KamLAND

Depth 3600 m.w.e ( = 1.2  ) 2700 m.w.e ( = 5.4 )
Scintillator mass 278 ton (PC + 1.5 g/l PPO) 1 kt (80% dodec. + 20% PC + 1.4 g/l PPO)
Inner detector 13 m sphere, 2212 8′′ PMT's 18 m sphere, 1325 17′′ + 554 20′′ PMT's
Outer detector 2.4 kt HP water + 208 8′′ PMT's 3.2 kt HP water + 225 20′′ PMT's
Energy resolution 5% at 1 MeV 6.4% at 1 MeV
Vertex resolution 11 cm at 1 MeV 12 cm at 1 MeV
Reactors mean distance ~1170 km ~180 km