Radiation damage exerts a fundamental control on He diffusion in zircon, which manifests as correlations between (U‐Th)/He date and effective uranium concentration. These correlations can be exploited with modeling to explore long‐term thermal histories. This manuscript focuses on one such model, the zircon radiation damage accumulation and annealing model (ZRDAAM) of Guenthner et al. (2013), https://doi.org/10.2475/03.2013.01, by integrating newly defined alpha damage annealing kinetics measured by Ginster et al. (2019), https://doi.org/10.1016/j.gca.2019.01.033, into ZRDAAM. I explore several consequences of this alpha damage annealing model as it relates to (U‐Th)/He date‐effective uranium (eU) correlations, using representative time‐temperature paths and previously published results. Comparison between the current version of ZRDAAM, which uses fission track annealing, and the new annealing model demonstrates that, for thermal histories with prolonged periods at low temperatures (<50°C), alpha dose annealing kinetics yield slightly younger model dates at low to moderate eU concentrations, older dates at moderate to high eU, and substantially younger dates at the highest eU concentrations. The absolute eU concentrations over which the differences are observed varies for a given thermal history, so these ranges should be interpreted as relative or proportional. Younger model dates at high eU in most thermal histories result from lower amounts of annealing that occur with the Ginster et al. (2019) alpha dose annealing kinetics. This annealing model comparison illustrates that the choice of annealing kinetics has the greatest influence over model output for thermal histories involving either prolonged time periods in the 200–300°C temperature window, or a late‐stage reheating event.

中文翻译：

---

与锆石裂变径迹退火模型相比，实现锆石（U-Th）/ He热年代的Alpha损伤退火模型

辐射损伤对He在锆石中的扩散具有基本控制作用，表现为（U-Th）/ He数据与有效铀浓度之间的关系。可以通过建模利用这些相关性来探索长期热历史。该手稿集中于一个这样的模型，即Guenthner等人的锆石辐射损伤累积和退火模型（ZRDAAM）。（2013），https：//doi.org/10.2475/03.2013.01，通过整合由Ginster等人测量的新定义的α损伤退火动力学。（2019），https://doi.org/10.1016/j.gca.2019.01.033合并为ZRDAAM。我使用代表性的时间-温度路径和先前发表的结果探讨了这种与（U-Th）/ He有效日期铀（eU）相关的α损伤退火模型的几种结果。当前版本的ZRDAAM之间的比较，它使用裂变径迹退火，并且新的退火模型表明，对于低温（<50°C）下具有较长时间的热历史，在低至中等eU浓度下，α剂量退火动力学产生的模型日期稍年轻，而在中等温度下，日期较长到较高的eU，并且在较高的eU浓度下要年轻得多。对于给定的热历史，观察到差异的绝对eU浓度会发生变化，因此应将这些范围解释为相对或成比例的。Ginster等人发现，在大多数热历史中，较年轻的模型在高eU时的日期较低。（2019）α剂量退火动力学。