1. Commissioning and preliminary results
ELENA ION SOURCE
Commissioning and preliminary results
Ana Megia. CERN. September 2015

2. Ana Megia. CERN. September 2015

3. Ana Megia. CERN. September 2015
ELENA Ion Source Design
H+/H- production
+/-100 kV Bias voltage
Tungsten filament
Decapole magnet
Magnetic filter
Pulsed extraction
Currents of tens of µA
Ana Megia. CERN. September 2015

4. Ana Megia. CERN. September 2015
High voltage
Electronic signals
Fiber optics
Computer com.
HIGH VOLTAGE AREA
HIGH VOLTAGE CABINET
GROUND CABINET PC
Pepper-pot
CONTROL UNIT
CONTROL UNIT WS PC CT
Puller
Source
MAINS
FILAMENT PS - +
PULSE GEN.
Stepper motor trigger
Measurement trigger
Screen e-
TTL to FO
ARC PS - +
QUADRUPOLE PSs
WS measurement
Calib. signal
Current meas.
Cam.
Quadrup.
PULLER PS
220V/400Hz conv.
HIGH VOLTAGE PS
(+/-100kv) PC
Main trigger PC
WS CONTROL
PICOSCOPE
Ana Megia. CERN. September 2015

5. Source characterization
Ana Megia. CERN. September 2015

6. Ana Megia. CERN. September 2015
Raw data
Wire scanners
Pepper-pot
Current transformer
Ana Megia. CERN. September 2015

7. Ana Megia. CERN. September 2015
Where to begin?
H+/H-
Arc voltage
Arc current
Gas flow
Source voltage
Puller voltage
Quadrupole settings
Ana Megia. CERN. September 2015

8. Ana Megia. CERN. September 2015
Wire Scanner analysis
Pepper-pot analysis
Ana Megia. CERN. September 2015

9. Ana Megia. CERN. September 2015
Results comparison (EIS-NP-SC-014)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

10. Ana Megia. CERN. September 2015
Results comparison (EIS-NP-SC-014)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

11. Ana Megia. CERN. September 2015
Results comparison (EIS-PP-SC-004)
Ana Megia. CERN. September 2015

12. Ana Megia. CERN. September 2015
Results comparison (EIS-PP-SC-004)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

13. Ana Megia. CERN. September 2015
Results comparison (EIS-PP-SC-004)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

14. Ana Megia. CERN. September 2015
Results comparison (EIS-NP-SC-037)
Ana Megia. CERN. September 2015

15. Ana Megia. CERN. September 2015
Results comparison (EIS-NP-SC-037)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

16. Ana Megia. CERN. September 2015
Results comparison (EIS-NP-SC-037)
WIRE SCANNER
PEPPER POT
Ana Megia. CERN. September 2015

17. Source re-installation
Ana Megia. CERN. September 2015

18. Ana Megia. CERN. September 2015

19. Ana Megia. CERN. September 2015

20. Ana Megia. CERN. September 2015
What’s next?
Regarding previous measurements:
Improve the ellipse fitting.
Analysis of all results.
Is it possible to get better RMS Emittance values??
Determine new interesting points to be measured.
Analyze Pepper-pot images for all the measurement points.
Ideas are welcome.
Waiting for some parts from Jülich (HV cables & safety hood). September 2015
Measurement plan for the source and the ion switch (Daniel Barna)
Timing and Oasis.
Integration of the source in the AD control system?
Regarding source future operation:
Ana Megia. CERN. September 2015

21. Ana Megia. CERN. September 2015
Timing
Ana Megia. CERN. September 2015

22. ? OPTION I: LOCAL CONTROL (€) OPTION II: REMOTE CONTROL (€€€) 5000 €
PICOSCOPE
CURRENT TRANS.
CONTROL UNIT
PULLER PS
PULLER
Trigger cable
PULSE GEN.
WS STEPPER MOTOR
WS CONTROL
WS MEAS.
Local control of the source parameters
OPTION II: REMOTE CONTROL (€€€) ?
PICOSCOPE
CURRENT TRANS.
Trigger cable
CONTROL UNIT
PULLER PS
PULLER PS
Serial cable
CONTROL TEST STAND
WS STEPPER MOTOR
Ethernet
5000 €
WS CONTROL
1805 €
WS MEAS.
Source parameters controlled from the control room by remote desktop app
Ana Megia. CERN. September 2015

23. Ana Megia. CERN. September 2015
OPTION III:LOCAL CONTROL PREPARED FOR FUTURE REMOTE CONTROL (€€)
PICOSCOPE
CURRENT TRANS.
Trigger cable
CONTROL UNIT
PULLER PS
PULLER
Serial cable
PULSE GEN.
Ethernet
WS STEPPER MOTOR
1805 €
WS CONTROL
WS MEAS.
Source parameters controlled from the control room by remote desktop app
OPTION IV: INTEGRATION OF THE SOURCE (€€€€)
OPTION II + man power
Ana Megia. CERN. September 2015

24. Ana Megia. CERN. September 2015
QUESTIONS FROM TIMING TEAM
Will the source be always operated in pulsed mode? If so, which are the maximum and minimum frequency and pulse length?
Once the commissioning is finished and ELENA is connected to the AD ring, will the source need to be synchronized with the AD beam?
Ana Megia. CERN. September 2015

25. Ana Megia. CERN. September 2015
Oasis
Ana Megia. CERN. September 2015

26. Extraction pulse trigger
PICOSCOPE
OASIS
Picoscope trigger
Main trigger
CT calibration signal
CT calibration signal
Ion current
Ion current
Extraction pulse trigger
Wire scanner signal
Ana Megia. CERN. September 2015

27. Comments… Cable request deadline 25th September !
Ana Megia. CERN. September 2015

28. Ana Megia. CERN. September 2015

29. Ana Megia. CERN. September 2015
H- preliminary results
Ana Megia. CERN. September 2015

30. Ana Megia. CERN. September 2015
H+ preliminary results
Ana Megia. CERN. September 2015