| Title |
Nanometer Scale Coherent Current Modulation via a Nanotip Cathode Array and Emittance Exchange |
| Authors |
- E.A. Nanni, W.S. Graves
MIT, Cambridge, Massachusetts, USA
- P. Piot
Fermilab, Batavia, Illinois, USA
- P. Piot
Northern Illinois University, DeKalb, Illinois, USA
|
| Abstract |
We present PIC simulations of electron bunches with nm scale longitudinal modulation produced using a compact 2-20 MeV LINAC. The modulation is initially imparted in the transverse dimension of the electron bunch with a nano-patterned photo-emitter in a X-band RF gun with 2 MeV exit energy. The electron bunch passes through a 1 m standing wave X-band LINAC which can raise the beam energy up to 20 MeV. The transverse modulation is exchanged into the longitudinal dimension using a double dog-leg emittance exchange setup with a 5 cell RF deflector cavity. The modulation pitch can be tuned by adjusting the spacing of the nano-patterned photo-emitter or magnification of the transverse pitch with electron optics. The electron beam parameters are optimized to produce coherent XFEL radiation upon interacting with a “laser undulator”.
|
| Funding |
NSF DMR-1042342, DARPA N66001-11-1-4192 |
| Paper |
download WEPRO007.PDF [0.631 MB / 4 pages] |
| Export |
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※ EndNote |
| Conference |
IPAC2014, Dresden, Germany |
| Series |
International Particle Accelerator Conference (5th) |
| Proceedings |
Link to full IPAC2014 Proccedings |
| Session |
Poster Session, Ronaldo Area |
| Date |
18-Jun-14 16:00–18:00 |
| Main Classification |
02 Synchrotron Light Sources and FELs |
| Sub Classification |
A16 Advanced Concepts |
| Keywords |
electron, emittance, cavity, gun, linac |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Gianluigi Arduini (CERN, Geneva, Switzerland); Peter Michel (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-132-8 |
| Published |
July 2014 |
| Copyright |
|
