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  Commissioning Status of the Fritz Haber Institute THz FEL

Todd, A., Bluem, H., Christina, V., Cole, M., Ditta, J., Dowell, D., et al. (2011). Commissioning Status of the Fritz Haber Institute THz FEL. In Proceedings of IPAC2011, San Sebastián, Spain (pp. 3137-3139).

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IPAC2011_SanSebastian.pdf (Publisher version), 2MB
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 Creators:
Todd, A.M.M.1, Author
Bluem, H.1, Author
Christina, V.1, Author
Cole, M.D.1, Author
Ditta, J.1, Author
Dowell, D.1, Author
Jordan, K.1, Author
Lange, R.1, Author
Park, J.H.1, Author
Rathke, J.1, Author
Schultheiss, T.1, Author
Young, L.M.1, Author
Schöllkopf, Wieland2, Author              
Gewinner, Sandy2, Author              
Erlebach, Wolfgang2, Author              
Junkes, Heinz3, Author              
Liedke, Andreas2, Author              
Helden, Gert von2, Author              
Zhang, Weiqing2, Author              
Meijer, Gerard2, Author              
Gottschalk, S.C.4, Author more..
Affiliations:
1Advanced Energy Systems, Medford, NY, USA, ou_persistent22              
2Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              
3Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              
4STI Optronics, Bellevue, WA, USA, ou_persistent22              

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 Abstract: The THz Free-Electron Laser (FEL) at the Fritz Haber Institute (FHI) of the Max Planck Society in Berlin is designed to deliver radiation from 3 to 300 microns using a single-plane-focusing mid-IR undulator and a two-plane-focusing far-IR undulator that acts as a waveguide for the optical mode. A key aspect of the accelerator performance is the low longitudinal emittance, < 50 keV-psec, that is specified to be delivered at 200 pC bunch charge and 50 MeV from a gridded thermionic electron source. We utilize twin accelerating structures separated by a chicane to deliver the required performance over the < 20 - 50 MeV energy range. The first structure operates at near fixed field while the second structure controls the output energy, which, under some conditions, requires running in a decelerating mode. "First Light" is targeted for the centennial of the sponsor in October 2011 and we will describe progress in the commissioning of this device to achieve this goal. Specifically, the measured performance of the accelerated electron beam will be compared to design simulations and the observed matching of the beam to the mid-IR wiggler will be described.

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Language(s): eng - English
 Dates: 2011
 Publication Status: Published in print
 Pages: 3
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
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Title: 2nd International Particle Accelerator Conference, IPAC’11
Place of Event: San Sebastián, Spain
Start-/End Date: 2011-09-04 - 2011-09-09

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Title: Proceedings of IPAC2011, San Sebastián, Spain
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: THPC106 Start / End Page: 3137 - 3139 Identifier: ISBN: 978-92-9083-366-6