Current research in the accelerator technology is focused towards achieving high energy, intense beams by minimizing conversion losses during beam acceleration. In such high current facilities, induced activity in structural materials become primary concern for radiation protection and materials like Ta and Nb, with low induced activity generation, high corrosion resistance characteristics are preferred along with conventional structural materials. In view of significant use of elements like Nb, Ta and Fe in the proton accelerators, a dose rate measurement and decay study has been carried out. The prompt γ- and neutron doses with residual activity profile from short and long lived isotopes were estimated using γ-ray spectrometric method.

中文翻译：

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质子辐照对 Nb、Ta 和 Fe 靶材的瞬态和残余活性研究

目前对加速器技术的研究集中在通过最小化光束加速过程中的转换损失来实现高能量、强光束。在如此大的电流设施中，结构材料中的感应活性成为辐射防护的主要关注点，Ta 和 Nb 等材料具有低感应活性、高耐腐蚀性等特性，与传统结构材料一样受到青睐。鉴于 Nb、Ta 和 Fe 等元素在质子加速器中的大量使用，已经进行了剂量率测量和衰减研究。使用 γ 射线能谱法估计了具有来自短寿命和长寿命同位素的残余活度分布的即时 γ 和中子剂量。