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Table 8 Average and maximum recoil distances of radium isotopes in quartz which is chosen as the host due to the mineralogical composition of the aquifer

From: Water–rock interactions in the Bruchsal geothermal system by U–Th series radionuclides

Decay

Average distance (Å)

Maximum distance (Å)

230Th → 226Ra

370.3

663.2

232Th → 228Ra

331.3

609.8

228Th → 224Ra

406.6

763.3

  1. Data originate from Sun and Semkow (1998)