1. WAKEFIELDS IN COHERENT SYNCHROTRON RADIATION
Brant Billinghurst, J. C. Bergstrom, C. Baribeau, T. Batten, L. Dallin, T. E. May, J. M. Vogt, W. Wurtz, R. Warnock, D. A. Bizzozero, S. Kramer, K. Michaelian

2. Outline People Introduction to Coherent Synchrotron Radiation (CSR)
Motivation for Study
Observation of Wakefields
Using the Far-Infrared Beamline at the CLS

3. People K. Michaelian Brant Billinghurst Jack Bergstrom Ward Wurtz Les
Dallin
Tim
May
D. A. Bizzozero
Tonia
Batten
Johannes
Vogt
Cameron
Baribeau
Robert
Warnock
Steve
Kramer

4. Coherent Synchrotron Radiation
Normal Synchrotron Radiation
Coherent Synchrotron Radiation

5. (Ne)2 2a2 Ne2 Power = 3c2 The CSR advantage
Bunch with N electrons undergoes acceleration a
Random radiation phases (incoherent)
Coherent Radiation Phases
(Ne)2
2a2
Ne2
Power =
3c2
P[coherent]
= N ≈
P[incoherent]

6. CSR Spectrum

7. Structure in Spectra

8. The feature of interest

9. Wakefield In a chamber with conducting side walls
Resonant modes of the chamber should exist
Energy will be transferred to these modes happens when the phase velocity of the modes match that of the particle
This produces a spectra distribution with sharp peaks
This is analogous to Whispering Gallery modes

10. A Different Perspective

11. Horizontally Polarized, Backward

12. Vertically Polarized, Backward

13. Horizontally Polarized, Forward

14. Time Domain Spectrum

15. Simulation

16. More Information

17. The Far-Infrared Beamline at the CLS
S/N up to 8 times better than Conventional Sources
Bruker IFS 125 HR Spectrometer capable of resolution better than cm-1
2M Gas cell
Maximum Pathlength 72M
Temperature controlled between 200K and 340 K
Horizontal Microscope
Coming Soon: Discharge Cell

18. Discharge Cell

19. Synchrotron Advantage
High resolution spectra of pyrrole, collected using the synchrotron (top) compared to the same using the Globar (bottom). Reproduced from Tokaryk D.W. and van Wijngaarden J.A. "Fourier transform spectra of the  ν16 , 2ν16 ,and 2ν16-  ν16 bands of pyrrole taken with synchrotron radiation"  Can. J. Phys. 87 (2009) © Canadian Science Publishing or its licensors

20. How to Access Beamtime Purchased Access :~$500.00 per hour
Peer-Review: $ 1 +tax for each 8 Hour shift
A call for proposals for Peer-Reviewed beamtime open twice a year
Next call
December-June 2017
Opens July 27, 2016
Closes October 7, 2016
Results Announced November 7th 2016

21. Proposals
You can submit a proposal at
The proposal includes
Users information
Brief description
Scientific Merit
Past productivity
Experimental Procedure
Sample list
Equipment list
Safety information
Speak to the beamline scientist before submitting a proposal

22. Remote access Data collected by Beamline staff
Users send sample
Provide details of the experimental requirements
Data is uploaded to an FTP site daily
Adjustments to experimental parameters made upon request
If you would like to use “remote access” you must
Receive confirmation from the beamline scientist that it will be accepted
Request 10% more time than usual for said experiment
Not Available for
High pressure Diamond Anvil Cell work
Glow discharge experiments