1. RARAF Accelerator Replacement History of RARAF Van de Graaff Removal of Van de Graaff Placement and assembly of Singletron Comparison of accelerators Timeline for installation

2. RARAF Accelerator Replacement Van de Graaff at Brookhaven National Laboratory 1949

3. RARAF Accelerator Replacement CosmotronCosmotron injector

4. RARAF Accelerator Replacement Van de Graaff at BNL before move to Nevis

5. RARAF Accelerator Replacement Van de Graaff stored at Nevis and being positioned

6. RARAF Accelerator Replacement Nevis 200 MeV cyclotron partially disassembled and being entombed

7. RARAF Accelerator Replacement Van de Graaff before removal

8. RARAF Accelerator Replacement Removing charging belt (June 13)

9. RARAF Accelerator Replacement

10. Removal of acceleration tube

11. RARAF Accelerator Replacement Terminal, acceleration tube and column removed

12. RARAF Accelerator Replacement Baseplate with column and drive motor removed

13. RARAF Accelerator Replacement Making opening in rear wall

14. RARAF Accelerator Replacement Van de Graaff tank being removed from building (August 2)

15. RARAF Accelerator Replacement

17. Removal of baseplate

18. RARAF Accelerator Replacement

19. Accelerator tank leaving Nevis

20. RARAF Accelerator Replacement Interior parts of the Van de Graaff being taken away by Robert Krawchuk

21. RARAF Accelerator Replacement Arrival of Singletron at RARAF (August 10)

22. RARAF Accelerator Replacement

23. Installation of baseplate and resonant coil tank

24. RARAF Accelerator Replacement HV power supply & resonator coil Singletron, baseplate & quadrupole

25. RARAF Accelerator Replacement Interior of SingletronTerminal with shell removed

26. RARAF Accelerator Replacement ParameterVan de GraaffSingletron Terminal Voltage (MV)0.8 - 4.20.2 - 5.0 Ripple (V)~1200200 Proton current (μA)>150200 (100) He current (μA)?125 Charging systemBeltInduction Note: Lower x-ray radiation in Singletron due to spiral acceleration tube design Accelerator comparison

27. RARAF Accelerator Replacement Principle of operation of a Pelletron or Van de Graaff

28. RARAF Accelerator Replacement Singletron resonant coil interior Interior of tank with Dees

29. RARAF Accelerator Replacement Electrodes & diode stacks with spark gaps

30. RARAF Accelerator Replacement RF ion source

31. RARAF Accelerator Replacement TASKFromTo Mechanical installation (positioning, anchoring rails, etc.)9/2010/4 Wiring, water, ion source, function tests10/510/7 Accelerator checks (open air)10/1010/14 INSTALLATION BREAK (1st 4 weeks over)10/1710/24 Tank filling and conditioning for voltage10/2511/2 HV test/ radiation check11/311/4 Beam tests11/711/11 Specification: voltage, stability, beam current11/1411/18 INSTALLATION BREAK (2nd 4 weeks over)11/2111/28 Return if necessary11/29 Timeline for Singletron installation

32. RARAF Accelerator Replacement RARAF Staff Gerhard Randers-Pehrson Alan Bigelow Guy Garty Greg Ross Giusseppe Schettino HVEE staff Arnoud Terpstra Robert Honee