We have developed a new real-time neutron detector, which is able to measure a direct neutron beam of boron neutron capture therapy. The detector consists of both a 40-$\mathrm{\mu }$m-thick pn diode and around 0.09-$\mathrm{\mu }$m-thick LiF neutron converter. Experimental results indicate that this neutron detector can measure neutron flux up to 1 × 10${}^9$ (cm⁻² s⁻¹), separately from gamma rays around 500 mGy/h. The measured depth distribution of neutron flux in an acrylic block is in agreement with the activation results of gold.

中文翻译：

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使用薄硅传感器开发用于硼中子俘获疗法的实时中子束探测器

我们开发了一种新的实时中子探测器，它能够测量硼中子俘获疗法的直接中子束。该检测器由一个 40-$\mathrm{\mu }$m 厚的 pn 二极管和大约 0.09-$\mathrm{\mu }$m 厚的 LiF 中子转换器。实验结果表明，该中子探测器可以测量高达 1 × 10${}^9$ (cm ^-2 s ^-1 )，与约 500 mGy/h 的伽马射线分开。亚克力块中中子通量的实测深度分布与金的活化结果一致。