In this study, low-energy electron linear accelerators (LINACs) were proposed for applications in biological studies to replace the gamma-ray irradiators. An important parameter in biological research involves the precise dose delivery to the biological sample at an appropriate dose rate, so the beam parameters of the LINACs should be determined so as to satisfy the required dose rate. A cost effective practical LINAC design can be achieved by using the determined beam parameters. Pulsed electron beam parameters, including the pulsed beam current, pulse width, and pulse frequency, as functions of the dose rate for irradiated X-rays were examined via the Monte Carlo N-Particle transport code. Optimum ranges for pulsed electron beams were evaluated to deliver a dose rate exceeding 4 Gy/min at a distance of 30 cm from the target.

中文翻译：

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确定 4-MV 生物 X 射线辐照器的电子束参数

在这项研究中，低能电子直线加速器 (LINAC) 被提议用于生物学研究以取代伽马射线辐照器。生物研究中的一个重要参数涉及以适当的剂量率向生物样本进行精确的剂量传递，因此应确定 LINAC 的光束参数以满足所需的剂量率。通过使用确定的梁参数，可以实现具有成本效益的实用 LINAC 设计。通过蒙特卡罗 N 粒子传输代码检查脉冲电子束参数，包括脉冲束电流、脉冲宽度和脉冲频率，作为辐射 X 射线剂量率的函数。对脉冲电子束的最佳射程进行了评估，以在距目标 30 cm 的距离处提供超过 4 Gy/min 的剂量率。