CAJ | 학술논문

发射度补偿线圈是光阴极注入器中获得低发射度高品质束流的重要设备。由于通过的直流电流功率较大会致使线圈温度过高，必须使用水冷系统对其进行冷却，因此导致装置体积过大。考虑到电子枪产生的电子束团脉冲宽度一般为 ps 量级，重复频率为10 Hz ，针对补偿线圈提出了使用脉冲电流替代直流电流的设想，并对其温升进行了理论计算。结果表明：通过合理设计，使用脉冲电流，补偿线圈可以省掉水冷系统，从而能降低成本，实现实验装置的小型化。
발사도보상선권시광음겁주입기중획득저발사도고품질속류적중요설비。유우통과적직류전류공솔교대회치사선권온도과고，필수사용수랭계통대기진행냉각，인차도치장치체적과대。고필도전자창산생적전자속단맥충관도일반위 ps 량급，중복빈솔위10 Hz ，침대보상선권제출료사용맥충전류체대직류전류적설상，병대기온승진행료이론계산。결과표명：통과합리설계，사용맥충전류，보상선권가이성도수랭계통，종이능강저성본，실현실험장치적소형화。
The emittance compensation solenoid is an important device in a photoinjector for obtaining low -emittance ,high-quality electron beams .Because of the solenoid's high temperature resulting from the high power of direct current ,the solenoid must be cooled by a water cooling system ,which makes the device very bulky .Considering that the order the pulse width of the electron bunches is generally ps ,and that the frequency is usually 10 Hz ,an idea was put forward to use pulse current instead of direct current applied to the solenoid . The temperature rise was theoretically analyzed . The results show that , by reasonably designing the solenoid wire package and by using pulse current ,the water cooling system is no longer necessary ,which reduces the cost and achieves miniaturization of the device .