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This paper presents the characteristics,structure and parameters of the permanent magnetquadrupole lenses which have been used as a beam transport element in our linac.The methodsof connection and adjustment are discussed.After transporting 15 MeV electron beams by43 cm,a improvement of 50%—80% of the primary beam profile was obtained. 本文介绍了永磁四极透镜作束流输运元件的优点、结构及有关参量,以及永磁透镜应用于加速器束流传输线上的实际连接与调试方法.经联调,得到了:15MeV电子束流经43 cm传输后,束流截面比初始减小20%—50%的初步结果. In this paper, there is a description of NIM standard resistance gauge and cold magnetron gauge as vacuum measurement and monitored control elements for HIRFL (Lanzhou heavy Ion Accelerator) vacuum control subsystem of beamtransmission line. 本文描述了用于HIRFL(兰州重离子加速器)束流传输线真空控制子系统的NIM 标准电阻和冷磁控规真空测量和监测单元。 During beam transport, the beam may be deviated from the center of the beam line axis for a variety of reasons. In order to improve transport efficiency of the beam transport system, it is necessary to align the beam onto the ion-optical-axis of the beam line. This paper introduces an alignment section containing a pair of steering magnets, a quadru-pole and a profile grid. It is simpler, less expensive and more efficient than other ways. 本文介绍了在束流传输过程中对束流与传输中心相对位置进行测量和把偏移的束流准直到束运线传输中心的方法。由一对校正磁铁、—个四极透镜和一个多丝剖面探针组成的束流准直段能有效地提高束流传输线的传输效率。
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