LAUSR

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.