What next at Daresbury Just thinking aloud

1
What next at Daresbury?Just thinking aloud

• Roger Barlow
• ThorEA meeting
• 17th April 2009

2
Where we are

• Building EMMA, the worlds
• first nonscaling FFAG
• This is an asset (USP)
• It does NOTHING for ADSRs. 20 MeV electrons _at_ pA
  are not 1 GeV protons _at_ mA.
• But it is a step
• Also studies underway on spallation, reactor
  core, etc.

3
Where are we going to?

• Design and build a Thorium ADSR, hopefully with
  an nsFFAG providing the accelerator
• (Other accelerator solutions are acceptable.)

4
How to get there

• Discussions between RB, Bob Cywinski, Guenther
  Rosner and others.
• The AESIR project
• Accelerator
• Energy
• System with
• Inbuilt
• Reliability

5
Stage I LOKI

• The Low-key demonstrator
• 35 MeV H- system
• (protons at Daresbury!)
• High current. (1 mA? 10 mA?)
• Commercial source
• RF Quadrupole
• Standard Linac
• Study reliability and build it in from the start.
  Learn from mistakes
• Looks like the Front End Test Stand?? Copy? Move?
• Also measurements of cross sections on Thorium
  (at CERN?),simulations, materials studies
• 2-3 years. 17M

6
Stage 2 FREA

• FFAG Research for the Energy Amplifier
• Add a 2nd stage ring that boost energy to 390 MeV
• Why 390? Pion production. But 300 would still
  be interesting
• Produces spallation. Not as much as 1 GeV, but
  enough to be interesting.
• Continue to emphasise reliability. Increase
  Current to 10 mA
• Use a proton nsFFAG with a cyclotron as
  fallback. Or Linac
• Gives useful proton machine (c.f. TRIUMF, PSI).
  99mTc production?
• Links to proton therapy but details very
  different. (High current. One energy. More space)
• 4-5 years. 50 M

7
Stage 3 Thor
Add a second ring to give 1 GeV nsFFAG, with RCS
and Linac as backup options Use with a real
target and nuclear core for production ADSR
system Where? Not Daresbury. Sellafield?? Just
power, or partitioning/transmutation?
8
Costs and Funding
Economic stimulus package? Investment in
Daresbury Campus? DIUS, STFC, NWDA?? Stage 1
17M (8M new) 2-3 Years Stage 2 50 M (40M
new) 4-5 years Stage 3 Bn funded by/with
power companies Accelerator cost 100M (i.e.
10M 9
Could it happen?

• Possibly.
• Ticks many boxes in Govt fundng criteria
• Builds up activity on Daresbury innovation
  campus
• Makes sensible use of infrastructure at
  Daresbury left by SRS
• Increasing interest and activity
• Possibly not. But if we dont try, it certainly
  wont.