在北京正负电子对撞机 (BEPC)直线加速器工程中 ,参考美国SLAC微波脉冲压缩技术 ,成功地研制了能量倍增器 (SLED) .该装置自 1988年运行以来 ,一直存在一个隐患 ,解调谐系统设计有问题 ,不能随便解谐 .BEPCⅡ经常需要长脉冲束流 ,这就要求能量倍增器能够方便地进行解调谐 .为此 ,参考日本KEK的资料 ,对目前能量倍增器解调谐系统进行了彻底的改进 ,完成了新的SLED解调谐系统的研制任务 ,并在加速器上成功地进行了高功率试运行 . The energy doubler (SLED) has been successfully developed with reference to the SLAC microwave pulse compression technology in Beijing’s BEPC linear accelerator project. Since the operation of the device in 1988, there has been a hidden danger. System design problems, can not easily detuning.BEPC Ⅱ often require long pulsed beams, which requires the energy multiplier can be easily demodulated.To this end, the reference to the Japanese KEK data, the current energy multiplier demodulation system was carried out The thorough improvement, completed the research task of new SLED solution tuning system, and successfully carried out high-power trial operation on the accelerator.