Durability tests of thermal protection system (TPS) materials for space vehicles is of paramount importance in developing TPS materials. The limits of the presently used techniques and the need for higher accuracy and precision demand new reliable and more sensitive measurement methods. In this paper we present the validation of a new on-line and non intrusive technique to estimate the TPS material recession rate which exploits the surface layer implantation of radioactive ⁷Be ions and the measurement of its characteristic γ-rays during the recession test.

中文翻译：

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用放射性注入离子估算航空航天材料衰退率的新技术的验证

航天器热保护系统 (TPS) 材料的耐久性测试对于开发 TPS 材料至关重要。当前使用技术的局限性以及对更高准确度和精密度的需求需要新的可靠和更灵敏的测量方法。在本文中，我们提出了一种新的在线和非侵入式技术的验证，该技术利用放射性⁷ Be 离子的表层注入及其特征γ射线在衰退测试期间的测量来估计 TPS 材料衰退率。