一种用于激光蒸发产生团簇束的高速脉冲气阀

A Double-solenoid Pulsed Valve Used for the Generationof Cluster Beams with Laser Vaporization Technique

报道一种双线圈弹簧结构脉冲气阀的成功研制。产生的气体脉冲宽度（ＦＷＨＭ）小于２００μｓ，在不加Ｓｋｉｍｍｅｒ时气体脉冲峰值强度为２×１０２２ｍｏｌｅｃｕｌｅｓ／ｓｒ·ｓ。气阀的主要性能与国外用激光蒸发／分子束技术产生簇束的有代表性的实验室所用的同类气阀相比并不逊色。

it is reported that a double-solenoid pulsed valve with pulse width less than 200μshas operated successfully.The peak intensity of the produced gas pulse is about 2×1022 molecules/sr.s without Skimmer.The main features of the valve are comparable withthose used in foreign representative laboratories for the generation of cluster beams with laservaporization/molecular beam technique.