Soon after the initial studies on He-diffusion in apatite pointed out the use of the (U-Th)/ He system for low temperature geochronology (Zeitler et al. 1987; Wolf et al. 1996; Warnock et al. 1997), the potential value of forward modeling for refined interpretation of (U-Th)/He dating was indicated (Wolf et al. 1998). While the first studies provided evidence for the low closure temperature (TC, Dodson 1973) of the (U-Th)/He system in apatite for monotonously cooling systems, the latter study investigated the sensitivity of the (U-Th)/He system for a wide range...

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