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1引言谢家麟作为一位侧重于实验研究的科学家,在长达半个多世纪的科研生涯中,不但发表过数量不菲的科学论著,而且参与创制并动手完成了多项重大的实际应用和科学研究装置,提出了许多改善仪器性能的方法。这些仪器装置和方法包括:当时世界上能量最高的医用加速器、中国首台可向高能发展的直线加速器、北京正负电子对撞机、北京自由电子激光装置、新型实用电子直线加速器和加速器脉冲源前馈控制方法等。一个人若能取得这些成果中的一项,就足以进入优
1 Introduction Xie Jialin, as a scientist focusing on experimental research, has not only published a large number of scientific treatises in scientific research career for more than half a century, but also participated in the creation and implementation of a number of major practical applications and sciences Research devices, many ways of improving instrument performance have been proposed. These instrumentation and methods include the world’s highest energy medical accelerator, the first linear accelerator for high-energy development in China, the Beijing Electron Positron Collider, the Beijing Free Electron Laser, the new practical electron linac and the accelerator pulse source Feedforward control methods. A person who is able to achieve one of these outcomes is enough to enter the good