The development status of electron accelerators for irradiation is advancing rapidly. These devices are widely used in various fields such as medical treatment, food preservation, and material science. With the increasing demand for sterilization and material modification processes, electron accelerators for irradiation are poised to play a significant role in high-altitude areas. We have developed a multi-energy electron accelerator for Shigatse, whose average altitude is above 4000 meters, for the research and experiments on the irradiation sterilization process of Tibetan medicine.

The accelerator adopts the traveling wave structure, whose working mode is set at 2π/3 with 2856MHz working frequency, and adjusts the beam load through a beam transmission system to achieve 6MeV, 8MeV, and 10MeV multi-beam energy, meeting the requirements of irradiation and electron beam application research.

The factor that most affects accelerators in high-altitude areas is the insulation problem. The solid-state pulse modulator was designed with a "low-voltage pulse modulation power supply + multi-input high transformer turns ratio" to solve the problem of insulation and arcing at the high-voltage end. On the other hand, the design reduces the risk of modulator breakdown by increasing power capacity and insulation lengths.

The development of an electron linear accelerator for high-altitude areas has been completed, which will be used for irradiation experiments relevant to Tibetan medicine and other irradiation research fields.