The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Rujanakraikarn, R. AU - Koonpong, P. AU - Tesprasitte, S. ED - Cheng, Yung-Sen ED - Schaa, Volker RW ED - Chiu, Pei-Chen ED - Li, Lu ED - Liu, Yung-Hui ED - Petit-Jean-Genaz, Christine TI - Collimator Motion Control System Upgrade for Medical Linear Accelerator Project at SLRI J2 - Proc. of PCaPAC2018, Hsinchu, Taiwan, 16-19 October 2018 CY - Hsinchu, Taiwan T2 - International Workshop on Emerging Technologies and Scientific Facilities Controls T3 - 12 LA - english AB - A prototype of the 6-MeV medical linear accelerator has been under development at Synchrotron Light Research Institute (SLRI). A set of secondary collimators is utilized with different size arrangement for beam shaping purpose. To produce the desired field size of the beam, the FPGA-based collimator motion control is designed in VHDL for simultaneous control of the collimators while the main PI control is implemented in the FPGA’s main processor. In this paper, hardware and software upgrades of the collimator motion control system are presented. A custom drive hardware for individual collimator is designed to implement with the existing FPGA controller board. Interface between the custom hardware parts and the FPGA’s programmable logic (PL) part is described. Communication between the motion control subsystem and the main LabVIEW control software on PC is modified to send and receive parameters wirelessly. Software modification of the FPGA’s main processor part and that of the LabVIEW GUI part is also reported. PB - JACoW Publishing CP - Geneva, Switzerland SP - 183 EP - 186 KW - controls KW - software KW - FPGA KW - hardware KW - interface DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-PCaPAC2018-THP10 UR - http://jacow.org/pcapac2018/papers/thp10.pdf ER -