EPICS Implementation example ORBIT CONTORL AT COSY jan

EPICS Implementation example ORBIT CONTORL AT COSY jan. malec@cosylab. com

2 Intro q About COSY q Orbit correction based on ORM q Implementation at COSY q Results and conclusions

3 COSY (FZJ) q Cooler Synchrotron q Forschungszentrum Jülich q Polarized and non polarized beams q Beam cooling q Internal or external target q Preparations for EDM measurements

4 Orbit control based on ORM q

5 Orbit control based on ORM q

6 ORM and Bump Creation q Measured ORM empirically q Model -> ORM with a python script q Data from MAD-> bump creation q Bump creation confirms that model is realistic

7 COSY Control System q Custom CPU with Motorola processors q Ethernet based timing on 10 Megabit non switched network q Non distributed q Tcl/Tk GUIs, TCP

8 Control system design

9 COSY cycle operation

10 COSY cycle operation + OC

11 Full orbit correction state machine

12 Orbit correction GUI

13 Creation of a vertical bump

14 Correcting a vertical bump

15 Correction to zero over multiple cycles

16 Solving possible bottlenecks

17 Conclusions q COSY is an interesting machine with a great team q Implemented orbit correction in EPICS with virtually no hardware changes and minimal downtime q Introduced distributed ACS q Really interesting project

THANK YOU! Jan Malec COSYLAB Tel. : +386 40 671 246 Web: www. cosylab. com