The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Hu, L.X. AU - Chen, Y. AU - Ding, K.Z. AU - Li, J. AU - Song, Y. AU - Wu, Y.C. AU - Yang, Q. AU - Yao, K. ED - Schaa, Volker RW TI - Collimator for Beam Position Measurement and Beam Collimation for Cyclotron J2 - Proc. of IBIC2018, Shanghai, China, 9-13 September 2018 C1 - Shanghai, China T2 - International Beam Instrumentation Conference T3 - 7 LA - english AB - In order to restrict the beam dispersion and diffusion at the extraction area of the cyclotron and to detect abnormal beam loss, a beam collimator system has been designed to collimate the beam and to measure its transverse positions. The collimator system is composed of a vacuum cavity, two pairs of beam targets, a set of driving and supporting mechanism, and a measurement and control unit. The beam target with the size determined by the diameter of the beam pipe, the particle energy and beam intensity, will generate current signal during particle deposition. Each pair of beam targets has bilateral blocks which forms a slit in either horizontal or vertical direction. Servo motor and screw rod are used so that the target can reciprocate with the repeatability of less than 0.1mm. The measurement and control system based on LabVIEW can realize the motion control and current measurement of the targets and then calculate the beam transverse positions. PB - JACoW Publishing CP - Geneva, Switzerland SP - 224 EP - 227 KW - controls KW - target KW - cyclotron KW - vacuum KW - collimation DA - 2018/11 PY - 2018 SN - 978-3-95450-201-1 DO - 10.18429/JACoW-IBIC2018-TUPA07 UR - http://jacow.org/ibic2018/papers/tupa07.pdf ER -