1. EPICS Meeting March 12 – 14, 2008, Shanghai, China
Update on Injection and Extraction Kicker Controls at SNS
Johnny Tang
March 13, 2008

2. SNS Accelerator – Functions of Injection & Extraction Kickers
Accumulator Ring
Collimators
Front-End:
Produce a 1-msec long, chopped, H- beam
1 GeV LINAC
Accumulator Ring: Compress 1 msec long pulse to 700 nsec
Injection
Extraction RF
Current
1ms
1000 MeV
RTBT
2.5 MeV
HEBT
Front-End
945 ns
1 ms macropulse
Current
mini-pulse
Chopper system makes gaps
LINAC
Liquid Hg Target

3. Ramping Up to SNS Design Capability
Control Requirements Driven by Machine Operation Performance Goals
Ramping Up to SNS Design Capability
In the next three years:
1) 1.4 MW beam power
2) ~5000 hours of operation per year
3) >90% availability
UTBOG_S&T_NeuFac_0801

4. Kicker Waveform Profile Monitor
WE7000 Customized Embedded Logic
Only for parameter pass/fail test
Only for Injection Kicker System with existing WE7000
VME Waveform Module Solution
Z-TEC EPICS oscilloscope Solution
Waveform Mask Pass/fail Test
High performance Hardware
LeCroy 64Xi oscilloscope with SNS Firmware Solution
4 Channel Waveform Mask Pass/Fail at 60 Hz

8. Already a World’s Highest Power Pulsed SNS
ISIS Beam Power

9. Thank You !
We welcome you to Oak Ridge to work on Accelerator Controls to bring SNS to its Design Capability in the next 3 years.
Please your CV to if you are interested

10. Reference
For Details on SNS Injection and Extraction Kicker Control, Ref to my talk at APS EPICS meeting 2006