Abstract
$C$-band low-energy electron linear accelerators are preferable for applications which require compact structure and accurate positioning. During the past two years, the accelerator laboratory of Tsinghua University has developed a $C$-band 6 MeV standing-wave biperiodic on-axis coupled linear accelerator. The weight of the accelerator is 7.4 kg and the length is about 39 cm, which includes the thermal-cathode gun and the flange for tests. High capture ratio, narrow energy spectrum, and small spot size have been achieved in the high power rf test, which shows good performance of this accelerator and its great potential for industrial and medical applications.
Highlights
Electron radio-frequency linear accelerators are widely used in industrial and medical applications, such as electron beam processing, nondestructive testing, as well as electron and x-ray therapy [1]
C-band low-energy electron linear accelerators are preferable for applications which require compact structure and accurate positioning
Narrow energy spectrum, and small spot size have been achieved in the high power rf test, which shows good performance of this accelerator and its great potential for industrial and medical applications
Summary
Electron radio-frequency (rf) linear accelerators are widely used in industrial and medical applications, such as electron beam processing, nondestructive testing, as well as electron and x-ray therapy [1]. In the past two years, a C-band standing-wave linear accelerator driven by a domestic magnetron has been designed, fabricated, and subjected to a high power test at the accelerator laboratory of Tsinghua University [12,13,14]. After fabrication by high-precision machine tools, the cells were measured in the cold test for their frequencies and coupling factors. The root-mean-square (rms) of output spot diameter was about 0.8 mm These results, including high beam current, narrow energy spectrum, and small spot size, demonstrate that this compact C-band accelerator performs efficiently.
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More From: Physical Review Special Topics - Accelerators and Beams
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