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文章通过对静电加速器加速管的场形计算和粒子轨迹计算，提出了有效地抑制次级电子的“Ｕ”型光栏直场加速管。经过加速器中高压试验和γ射线能谱测量，证实了“Ｕ”型光栏直场加速管所预期的性能。
In this paper, we propose a “U” - type straight accelerating tube that can effectively suppress secondary electrons by calculating the field shape and particle trajectory of the accelerator. After the accelerator medium-high pressure test and γ-ray energy spectrum measurement, confirmed the “U” -type optical field accelerator tube expected performance.