Title |
APEX Phase-II Commissioning Results at the Lawrence Berkeley National Laboratory |
Authors |
- F. Sannibale, J.A. Doyle, J. Feng, D. Filippetto, G.L. Harris, M.J. Johnson, T.D. Kramasz, D. Leitner, C.E. Mitchell, J.R. Nasiatka, H.A. Padmore, H.J. Qian, H. Rasool, J.W. Staples, S.P. Virostek, R.P. Wells, M.S. Zolotorev
LBNL, Berkeley, California, USA
- S.M. Gierman, R.K. Li, J.F. Schmerge, T. Vecchione, F. Zhou
SLAC, Menlo Park, California, USA
- C. Pagani, D. Sertore
INFN/LASA, Segrate (MI), Italy
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Abstract |
Science needs in the last decade have been pushing the accelerator community to the development of high repetition rates (MHz/GHz-class) linac-based schemes capable of generating high brightness electron beams. Examples include X-ray FELs; ERLs for light source, electron cooling and IR to EUV FEL applications; inverse Compton scattering X-ray or gamma sources; and ultrafast electron diffraction and microscopy. The high repetition rate requirement has profound implications on the technology choice for most of the accelerator parts, and in particular for the electron gun. The successful performance of the GHz room-temperature RF photo-injectors running at rates <~ 100 Hz, cannot be scaled up to higher rates because of the excessive heat load that those regimes would impose on the gun cavity. In response to this gun need, we have developed at Berkeley the VHF-Gun, a lower-frequency room-temperature RF photo-gun capable of CW operation and optimized for the performance required by MHz-class X-ray FELs. The Advanced Photo-injector EXperiment (APEX) was funded and built for demonstrating the VHF gun performance, and the results of its last phase of commissioning are presented.
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Funding |
Work supported by the Director of the Office of Science of the US Department of Energy under Contract no. DEAC02-05CH11231 |
Paper |
download TUOCA02.PDF [0.890 MB / 3 pages] |
Slides |
download TUOCA02_TALK.PDF [12.015 MB] |
Export |
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Conference |
IPAC2016, Busan, Korea |
Series |
International Particle Accelerator Conference (7th) |
Proceedings |
Link to full IPAC2016 Proccedings |
Session |
Contributed Oral Presentations, Photon Sources and Electron Accelerators |
Date |
10-May-16 15:00–16:00 |
Main Classification |
02 Photon Sources and Electron Accelerators |
Sub Classification |
T02 Electron Sources |
Keywords |
gun, electron, cavity, linac, space-charge |
Publisher |
JACoW, Geneva, Switzerland |
Editors |
Christine Petit-Jean-Genaz (CERN, Geneva, Switzerland); Dong Eon Kim (PAL, Pohang, Republic of Korea); Kyung Sook Kim (PAL, Pohang, Republic of Korea); In Soo Ko (POSTECH, Pohang, Republic of Korea); Volker RW Schaa (GSI, Darmstadt, Germany) |
ISBN |
978-3-95450-147-2 |
Published |
June 2016 |
Copyright |
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