Title :
Design and implementation of a DMLC control system
Author :
Zou, Jianxiao ; Xu, Hongbing ; Zhang, Jian
Author_Institution :
Sch. of Autom. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Dynamic multileaf collimator is an effective device for 3-DCRT (3-dimensional conformal radiation therapy) and IMRT (intensity-modulated radiation therapy). We present a novel design idea and an implementation of a dynamic multileaf collimator. The paper concentrates on the design and implementation of the main system modules. Furthermore, the circuit for leaves´ auto-recovery from mechanical deadlock status after unexpected collision is proposed and implemented. Testing and verification items are described and testing methods are introduced briefly. In clinical practice, the system runs reliably and its performance is up to the international advanced level.
Keywords :
biomedical equipment; collimators; control system synthesis; medical control systems; radiation therapy; 3-dimensional conformal radiation therapy; dynamic multileaf collimator control system; intensity-modulated radiation therapy; leaves auto-recovery; mechanical deadlock status; unexpected collision; Biomedical applications of radiation; Circuits; Collimators; Control systems; DC motors; Pulse width modulation; Shape control; Signal processing; Size control; Velocity control;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1495319
