FEL2011 - List of Authors (Düsterer, S.)

Paper

Title

Page

FLASH II: A Project Update

247

B. Faatz, V. Ayvazyan, N. Baboi, V. Balandin, W. Decking, S. Düsterer, H.-J. Eckoldt, M. Felber, J. Feldhaus, N. Golubeva, K. Honkavaara, M. Körfer, T. Laarmann, A. Leuschner, L. Lilje, T. Limberg, D. Nölle, F. Obier, A. Petrov, E. Plönjes, K. Rehlich, H. Schlarb, B. Schmidt, M. Schmitz, S. Schreiber, H. Schulte-Schrepping, J. Spengler, M. Staack, K.I. Tiedtke, M. Tischer, R. Treusch, M. Vogt, H.C. Weddig
DESY, Hamburg, Germany
J. Bahrdt, R. Follath, K. Holldack, A. Meseck, R. Mitzner
HZB, Berlin, Germany
J. Chen, H.X. Deng, B. Liu
SINAP, Shanghai, People's Republic of China
M. Drescher, A. Hage, V. Miltchev, R. Riedel, J. Rönsch-Schulenburg, J. Roßbach, M. Schulz, A. Willner
Uni HH, Hamburg, Germany
M. Gensch
HZDR, Dresden, Germany
F. Tavella
HIJ, Jena, Germany

FLASH II is an extension of the existing FLASH facility by an undulator line and an experimental Hall of which the construction will start before the end of the year. Aims are to increase beamtime for users and implement HHG seeding for the longer wavelength range from 10 to 40 nm at a reduced repetition rate of 100 kHz. Additional seeding schemes are under discussion as a future option. We will present a progress report of FLASH II.

THOC3

Few-fs X-ray Pulse Length Measurement at LCLS

A.R. Maier, F. Grüner
LMU, Garching, Germany
J.D. Bozek, R.N. Coffee
SLAC, Menlo Park, California, USA
A.L. Cavalieri, I. Grguras
CFEL, Hamburg, Germany
J.T. Costello
DCU, Dublin, Republic of Ireland
G. Doumy
ANL, Argonne, USA
S. Düsterer
DESY, Hamburg, Germany
J. Gagnon, W. Helml, R. Kienberger, W. Schweinberger, V.S. Yakovlev
MPQ, Garching, Munich, Germany
M. Meyer, P. Radcliffe, T. Tschentscher
European XFEL GmbH, Hamburg, Germany
C. Roedig
Ohio State University, USA

The Linac Coherent Light Source (LCLS) has an unique operating mode, delivering X-ray pulses of only a few femtoseconds (fs) length, though so far the precise X-ray pulse length has been experimentally inaccessible. In a recent experiment we measured the LCLS pulse length in this regime to be 4 fs fwhm by overlapping the FEL pulse with an optical infrared laser in a Neon gas jet. The IR laser maps the temporal X-ray pulse profile into the energy spectrum of the generated photolectrons. By measuring the photoelectron spectrum a direct characterization of the FEL pulse is possible. In the experiment we were able to directly access the temporal substructure of the X-ray pulses, measured the typical pulse length in the LCLS low charge mode to be 4 fs fwhm and showed single-spike, single-fs X-ray pulses.

Slides THOC3 [2.818 MB]

Paper	Title	Page
TUPA22	FLASH II: A Project Update	247
	B. Faatz, V. Ayvazyan, N. Baboi, V. Balandin, W. Decking, S. Düsterer, H.-J. Eckoldt, M. Felber, J. Feldhaus, N. Golubeva, K. Honkavaara, M. Körfer, T. Laarmann, A. Leuschner, L. Lilje, T. Limberg, D. Nölle, F. Obier, A. Petrov, E. Plönjes, K. Rehlich, H. Schlarb, B. Schmidt, M. Schmitz, S. Schreiber, H. Schulte-Schrepping, J. Spengler, M. Staack, K.I. Tiedtke, M. Tischer, R. Treusch, M. Vogt, H.C. Weddig DESY, Hamburg, Germany J. Bahrdt, R. Follath, K. Holldack, A. Meseck, R. Mitzner HZB, Berlin, Germany J. Chen, H.X. Deng, B. Liu SINAP, Shanghai, People's Republic of China M. Drescher, A. Hage, V. Miltchev, R. Riedel, J. Rönsch-Schulenburg, J. Roßbach, M. Schulz, A. Willner Uni HH, Hamburg, Germany M. Gensch HZDR, Dresden, Germany F. Tavella HIJ, Jena, Germany
	FLASH II is an extension of the existing FLASH facility by an undulator line and an experimental Hall of which the construction will start before the end of the year. Aims are to increase beamtime for users and implement HHG seeding for the longer wavelength range from 10 to 40 nm at a reduced repetition rate of 100 kHz. Additional seeding schemes are under discussion as a future option. We will present a progress report of FLASH II.

THOC3	Few-fs X-ray Pulse Length Measurement at LCLS
	A.R. Maier, F. Grüner LMU, Garching, Germany J.D. Bozek, R.N. Coffee SLAC, Menlo Park, California, USA A.L. Cavalieri, I. Grguras CFEL, Hamburg, Germany J.T. Costello DCU, Dublin, Republic of Ireland G. Doumy ANL, Argonne, USA S. Düsterer DESY, Hamburg, Germany J. Gagnon, W. Helml, R. Kienberger, W. Schweinberger, V.S. Yakovlev MPQ, Garching, Munich, Germany M. Meyer, P. Radcliffe, T. Tschentscher European XFEL GmbH, Hamburg, Germany C. Roedig Ohio State University, USA
	The Linac Coherent Light Source (LCLS) has an unique operating mode, delivering X-ray pulses of only a few femtoseconds (fs) length, though so far the precise X-ray pulse length has been experimentally inaccessible. In a recent experiment we measured the LCLS pulse length in this regime to be 4 fs fwhm by overlapping the FEL pulse with an optical infrared laser in a Neon gas jet. The IR laser maps the temporal X-ray pulse profile into the energy spectrum of the generated photolectrons. By measuring the photoelectron spectrum a direct characterization of the FEL pulse is possible. In the experiment we were able to directly access the temporal substructure of the X-ray pulses, measured the typical pulse length in the LCLS low charge mode to be 4 fs fwhm and showed single-spike, single-fs X-ray pulses.
	Slides THOC3 [2.818 MB]