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Meetings and Seminars
FLASH Seminar: Accelerator + Photons
Wednesdays bi-weekly starting 31-Aug-2022 at 14:30 - 15:30 h in 24/200 (hybrid)
Organized by Juliane Roensch-Schulenburg and Marion Kuhlmann
Run Coordination Meetings
FLASH run coordination meetings
are every Monday 09:00 - 10:00 h, building 30b room 459 and Thursdays 14:00 - 15:00 h, building 24 room 200.
After the Corona Lockdown in 2020, all FLASH RC meetings have been restarted as a video conference.
Obligatory for all FLASH assigned M and FS-goup representatives and for those running current experiments at FLASH.
The Monday meeting is dedicated to the run summary of the last week, reports on technical problems and issues, preparation and decisions on a possible maintenance day on Tuesday, and an outlook to the program of next week.
The Thursday meeting concentrates on issues on the running experiment and machine performance of the current week. Is the machine performance satisfactory for the experiments? Are urgent schedule changes required?
Minutes are available in the weekly overview of the FLASH elogbook and confluence.desy.de
Any question concerning FLASH should be addressed through
tc-flash@desy.de or contact the FLASH coordination team directly by Tel. 1751.
Other Seminars:
Presentations of the FEL seminar:
2019-08-20
2019-04-02
2019-03-26
2019-02-26
2019-02-05
2019-01-29
2019-01-15
2018-12-18
2018-12-11
2018-11-27
2018-07-03
2018-01-16
2017-10-17
2017-06-27
2017-07-11
2017-06-13
2017-06-06
2017-04-27
2017-04-18
2016-11-29
2016-09-20
2016-06-28
Higher Order Mode Based Beam Phase Measurements - Simulations and Results (17.5 MB)
Liangliang Shi (U. Manchester / CI / DESY)
2016-06-21
2016-05-24
2016-05-17
2016-05-10
2016-05-03
2016-04-26
Reverse Undulator Tapering for Polarization Control at X-ray FELs (708KB)
Evgeny Schneidmiller (DESY)
2016-04-19
2016-04-12
2016-04-05
2016-03-22
2016-03-15
2016-03-01
2016-01-19
2013-03-26
"Studies with Ultra-Short Pulses" (Juliane Roensch-Schulenburg)
2012-05-29
2012-05-22
"Ultra-short pulses at FLASH" (Juliane Roensch-Schulenburg)
2012-05-15
2012-04-17
2012-03-20
2012-03-13
2012-02-28
2012-02-21
Generation of attosecond pulses in a longitudinal space charge amplifier at FLASH
E. Schneidmiller, DESY
2012-02-14
Upgrade of FLASH LLRF system to uTCA based system
F. Ludwig, C. Schmidt, DESY
2012-02-07
2012-01-31
System Identification and MIMO Controller exploiting Symmetries of the RF-System (2.4 MB)
2012-01-31 Sven Pfeiffer (DESY)
2012-01-24
2012-01-17
Analysis on statistical properties of FLASH radiation in spectral domain (2.5 MB)
2012.01-17 - N. Gerasimova
2011-12-20
2011-12-13
Non intercepting electron beam size monitor using Optical Diffraction Radiation Interference (ODRI) (3.6 MB)
2011-12-13 - Alessandro Cianchi (Univ. / INFN Rome)
2011-08-16
2011-08-02
Generation of electron bunches with tailored current profiles at FLASH: Recent measurements and future (4.1 MB)
Philippe Piot (FNAL)
2011-06-28
2011-06-14
"Introduction to the new LOLA setup and results on LOLA-induced energy spread" (6.8 MB)
"Introduction to the new LOLA setup and results on LOLA-induced energy spread"
2011-06-14 Christopher Behrens, DESY
2011-04-12
Wavefront sensor measurements at FLASH (899KB)
Wavefront sensor measurements at FLASH
2011-04-12 - Barbara Keitel, DESY
2011-04-05
"Turkish Accelerator Complex & Status of TAC SASE-FEL" (4.3 MB)
"Turkish Accelerator Complex & Status of TAC SASE-FEL"
2011-04-05 - - Dr. Hatice Duran-Yidiz
2011-03-29
Pulses inside the pulse-mode of operation at RF gun (2.5 MB)
Pulses inside the pulse-mode of operation at RF gun
2011-03-29 - V. Vogel (DESY)
2011-02-01
"LLRF Applications Commissioning" (Christian Schmidt)
2011-01-25
The ORS Section: Plans for 201 and 2012 (2.5 MB)
The ORS Section: Plans for 201 and 2012
2011-01-25 - K. Hacker (DESY)
2011-01-18
Nikola Stojanovich (DESY): "THz comissioning after the shutdown"
2010-12-14
"OTR Stations"
Hans-Christian Schroeder (DESY)
2010-12-07
2010-11-30
Status and performance of FLASH-BPMs (1.4 MB)
Status and performance of FLASH-BPMs
2010-11-30 - Nicoleta Baboi ,DESY
2010-11-23
2010-11-16
2010-11-09
2010-11-02
Longitudinal Feedback for Beam Stabilization (1.6 MB)
Longitudinal Feedback for Beam Stabilization.pdf
2010-11-02 - Waldemar Koprek, DESY
Cavity Frequency Measurement and Initial Tuning by LLR Control System (1.9 MB)
Cavity Frequency Measurement and Initial Tuning by LLR Control System
2010-11-02 - Valery Ayvazyan, DESY
2010-10-26
Piezo Control at ACC1, ACC3, ACC 5-7 (1.5 MB)
Piezo Control at ACC1, ACC3, ACC 5-7
2010-10-26 - Mariusz Grecki, DESY
Master Oscillator Diagnostic System (1.5 MB)
Master Oscillator Diagnostic System
2010-10-26 - Krzystof Czuba, Warsaw University of Technology
2010-10-19
Progress in Finite State Machine - Developments at FLASH (674KB)
Infinite State Machine - Developments at FLASH
2010-10-19 - O. Hensler (DESY)
2010-10-12
FLASH LLRF Injector Re-cabling, Improvements and Control System Upgrade/Commissioning (3.8 MB)
FLASH LLRF Injector Re-cabling, ImprovementsControl System Upgrade/Commissioning
2010-10-12 - Matthias Hoffmann (DESY) , Holger Schlarb (DESY)
2010-10-05
First Results from seeding at sFLASH (5.2 MB)
First Results from seeding at sFLASH
2010-10-05 - Joern Boedewadt (Hamburg University)
2010-04-13
2010-03-16
Upgrade of the FLASH Beamlines (3.0 MB)
Upgrade of the FLASH Beamlines
2010-03-16 - Kai Tiedtke, DESY
2010-03-09
Application of Diamond and Sapphire at FLASH (1.5 MB)
Application of Diamond and Sapphire Sensors at FLASH
2010-03-09 - Alexandr Ignatenko, DESY
2010-02-23
2010-02-16
2010-02-09
Nikola Stojanovic "Status and plans of THz (IR) beamline"
2010-02-02
Summary and status of GUN dark current kicker (2.9 MB)
Summary and status of GUN dark current kicker
2010-02-02 - Frank Obier, DESY
2010-01-26
Status of 3rd harmonic module (ACC39) (1.6 MB)
Status of 3rd harmonic module (ACC39)
2010-01-26 - E. Vogel, DESY
2010-01-19
Beam Based Intra-Bunch Train Feedbacks (2.1 MB)
Beam Based Intra-Bunch Train Feedbacks
2010-01-19 - Patrick Geßler, DESY
Status of the Laser-Based Synchronisation System (3.2 MB)
Status of the Laser-Based Synchronisation System
2010-01-19 - Marie Kristin Bock, DESY
2010-01-12
2009-12-08
Status and Results of BPM Studies (861KB)
Status and Results of BPM Studies
2009-12-08- Nicoleta Baboi, DESY
2009-12-01
Results from BC2 BPM Commissioning (439KB)
Results from BC2 BPM Commissioning
2009-12-01 - Kirsten Hacker MPY/UNI EXP
2009-11-24
Results from full beam-loading (9 mA experiment) (12.1 MB)
Results from full beam-loading (9 mA experiment)
2009-11-24 - John Cawardine
2009-11-17
Summary of recent photocathode studies (3.7 MB)
Summary of recent photocathode studies
2009-11-17 - Sven Lederer, DESY
FLASH Injector Laser - Status of Laser 2 (3.9 MB)
FLASH Injector Laser - Status of Laser 2
2009-1-17 - Siegfried Schreiber (MIN)
2009-11-10
LLRF: Long-term stability improvement tests of ACC1 (1.4 MB)
LLRF: Long-term stability improvement tests of ACC1
2009-11-10 - Frank Ludwig, DESY
Status of FLASH LLRF system (3.8 MB)
Status of FLASH LLRF system + plans after shutdown
2009-11-10 - Valeri Ayvazyan, DESY
2009-11-03
LLRF: Results from MIMO-LTI controller (7.3 MB)
LLRF: Results from MIMO-LTI controller and learning feedforward
2009-11-03 - Christian Schmidt, DESY/TU Harburg
2009-10-27
Status of RF-gun LLRF (548KB)
Status of RF-gun LLRF (automation, calibration) + plans
2009-10-27 - Mariusz Grecki, DESY
2009-10-20
Results from the test of sFLASH photon diagnostics (1.7 MB)
Results from the test of sFLASH photon diagnostics
2009-10-20 - Tim Laarmann, DESY Francesca Curbis UNI
2009-10-13
Overview of the FEL user experiments (5.0 MB)
Overview of the FEL user experiments
2009-10-13 - S. Duesterer, DESY
Summary of the 2nd FEL user period at FLASH (2.2 MB)
Summary of the 2nd FEL user period at FLASH
2009-10-13 - Katja Honkavaara, DESY
2009-07-07
The File Catalog System at FLASH (3.6 MB)
The File Catalog System at FLASH: a tutorial
2009-07-07 P. Castro; DESY
2009-07-07 P. Castro; DESY
2009-04-21
Beam Stability at FLASH - update (1.0 MB)
Beam Stability at FLASH - update
2009-04-21 - Frank Ludwig: DESY
2009-04-21 - Frank Ludwig: DESY
Learning Feedforward for repetitive disturbances (2.0 MB)
Learning Feedforward for repetitive disturbances
2009-04-21 - Christian Schmidt, TU Harburg /DESY
2009-04-21 - Christian Schmidt, TU Harburg /DESY
2009-04-07
LLRF Control Performance Studies with Different Methods of Cavities Filling (2.2 MB)
LLRF Control Performance Studies with Different Methods of Cavities Filling
2009-04-07 - V.Ayvazyan; DESY
2009-04-07 - V.Ayvazyan; DESY
Progress on LLRF applications development (1.1 MB)
Progress on LLRF applications development
2009-04-07- Zheqiao Geng; DESY
2009-04-07- Zheqiao Geng; DESY
2009-03-31
2009-03-10
Development and results of automated Gun heating by RF (445KB)
Development and results of automated Gun heating by RF
2009-03-10 - M.Grecki; DESY
2009-03-10 - M.Grecki; DESY
2009-03-03
Status of the optical synchronization system for FLASH (2.7 MB)
Status of the optical synchronization system for FLASH
2009-03-03 - Holger Schlarb; DESY
2009-03-03 - Holger Schlarb; DESY
2009-02-24
Status of THz spectroscopy as a standard diagnostic method (3.2 MB)
Status of THz spectroscopy as a standard diagnostic method
2009-02-24 - Stephan Wesch; DESY
2009-02-24 - Stephan Wesch; DESY
Electro-optic Spectral Decoding (2.2 MB)
Electro-optic Spectral Decoding Measurements at FLASH
2009-02-24 - V.Arsov; DESY
2009-02-24 - V.Arsov; DESY
2009-02-17
Examples of FLASH user results in 2008 (1.4 MB)
Examples of FLASH user results in 2008
2008-02-17 - R. Treusch; DESY
2008-02-17 - R. Treusch; DESY
2009-02-10
LOLA: Past, present and future operation (1.3 MB)
LOLA: Past, present and future operation
2009-02-10 - Chr. Gerth; DESY
2009-02-10 - Chr. Gerth; DESY
2009-02-03
Beam phase measurement with single bunch at ACC6 (973KB)
Beam phase measurement with single bunch at ACC6
2009-02-03 - P.Morozov; DESY
2009-02-03 - P.Morozov; DESY
First Prototype of the ATCA-based LLRF System (595KB)
Demonstration of a First Prototype of the ATCA-based LLRF System at ACC4/5/6
2009-02-03 - W.Koprek; DESY
2009-02-03 - W.Koprek; DESY
Demonstration of a First Prototype of the ATCA-based LLRF System at ACC4/5/6
2009-01-20
Recent Optical replica results (606KB)
Recent Optical replica results
2009-01-20 - Peter van der Meulen; Stockholm University, Sweden
2009-01-20 - Peter van der Meulen; Stockholm University, Sweden
2009-01-13
2008-12-16
Optical Diffraction measurements (1.5 MB)
Optical Diffraction measurements at FLASH
2008-12-16 - Enrica Chiadroni; LNF-INFN, Italy
2008-12-16 - Enrica Chiadroni; LNF-INFN, Italy
2008-12-02
Implementation of the feed forward correction for the FLASH photo injector laser (1.0 MB)
Implementation of the feed forward correction for the FLASH photo injector laser and future plans for a feedback system
2008-12-02 - S. Schulz; Uni HH / DESY
2008-12-02 - S. Schulz; Uni HH / DESY
Intra bunch train arrival time and compression feedback (648KB)
Intra bunch train arrival time and compression feedback
2008-12-02 - Jaroslaw Szewinski, Wojciech Jalmuzna; Technical University of Lodz, Poland
2008-12-02 - Jaroslaw Szewinski, Wojciech Jalmuzna; Technical University of Lodz, Poland
2008-11-25
Microbunching Studies using IR Spectroscopy and TDS (1.1 MB)
Microbunching Studies using IR Spectroscopy and TDS
2008-11-25 - Stephan Wesch, DESY / Uni HH
2008-11-25 - Stephan Wesch, DESY / Uni HH
Investigation of CSR-spectra at BC3 (1.4 MB)
Investigation of CSR-spectra at BC3
2008--11-25 - Christopher Behrens; DESY/ Uni HH
2008--11-25 - Christopher Behrens; DESY/ Uni HH
2008-11-11
Report on XFEL Diagnostic Activities at FLASH (1.7 MB)
Report on XFEL Diagnostic Activities at FLASH
2008-11-11 - D. Noelle; DESY
2008-11-11 - D. Noelle; DESY
2008-10-28
File system, SaveRestore and Sequencer for DESY Accelerators (920KB)
File system, SaveRestore and Sequencer for LINAC2, DESY2, PETRA3 and FLASH, a status report
2008-10-28 -Pedro Castro; DESY
2008-10-28 -Pedro Castro; DESY
2008-10-21
Results of recent photocathode studies (1.8 MB)
Results of recent photocathode studies at FLASH
2008-10-21 - Sven Lederer; DESY
2008-10-21 - Sven Lederer; DESY
2008-10-14
LLRF Low-level Application study (950KB)
LLRF Low-level Application study
2008-10-14 - Zhenqiao Geng;DESY
2008-10-14 - Zhenqiao Geng;DESY
MIMO-LTI Feedback Controller study (788KB)
MIMO-LTI Feedback Controller study
2008-10-14 - Christian Schmidt; DESY / TUHH
2008-10-14 - Christian Schmidt; DESY / TUHH
2008-10-07
New Master Oscillator at FLASH (1.7 MB)
New Master Oscillator at FLASH
2008-10-07 - Krzysztof Czuba ISE, Warsaw; Henning Weddig, DESY
2008-10-07 - Krzysztof Czuba ISE, Warsaw; Henning Weddig, DESY
2008-09-23
Commissioning of Plane Grating Monochromator beamline (1.8 MB)
Commissioning of Plane Grating Monochromator beamline
2008-09-23 - Natalia Guerassimova;DESY
2008-09-23 - Natalia Guerassimova;DESY
Wavefront sensor measurements (2.0 MB)
FEL Wave-front and Intensity Measurements at the BL beamlines at FLASH
2008-09-23 - Pavle Juranic; DESY
2008-09-23 - Pavle Juranic; DESY
FEL Wave-front and Intensity Measurements at the BL beamlines at FLASH
2008-09-09
FLASH II (1.3 MB)
FLASH II: a second undulator line and future test bed for FEL development
2008-09-09 - B.Faatz; DESY
2008-09-09 - B.Faatz; DESY
2008-06-03
Progress of the ORS Experiment (2.5 MB)
Progress of the Optical Replica Synthesizer Experiment
2008-06-03 - Volker Ziemann; Uppsala University, Sweden
2008-06-03 - Volker Ziemann; Uppsala University, Sweden
2008-05-27
Cavity detuning computation and its implementation in FPGA (316KB)
Cavity detuning computation and its implementation in FPGA
2008-05-27 - Konrad Przygoda; Technical University of Lodz, Poland
2008-05-27 - Konrad Przygoda; Technical University of Lodz, Poland
2008-05-20
Bright quasi-phasematched harmonic generation in the water window from Argon ions (114KB)
Bright quasi-phasematched harmonic generation in the water window from Argon ions
2008-05-20 - Brendan Dromey; Queen's University of Belfast
2008-05-20 - Brendan Dromey; Queen's University of Belfast
2008-05-06
Microbunching instability and COTR studies at FLASH (1.6 MB)
Microbunching instability and COTR studies at FLASH
2008-05-06 - Bolko Beutner; DESY
2008-05-06 - Bolko Beutner; DESY
2008-04-29
LLRF system development for the XFEL (4.1 MB)
LLRF system development for the XFEL and performance evaluation at FLASH
2008-04-29 - Stefan Simrock; DESY
2008-04-29 - Stefan Simrock; DESY
2008-04-22
Investigations into the new infrared undulator as bunch diagnostic tool (2.7 MB)
Investigations into the new infrared undulator as bunch diagnostic tool
2008-04-22 - A. Willner; DESY
2008-04-22 - A. Willner; DESY
2008-04-15
Beam phase measurement with single bunch (2.0 MB)
Beam phase measurement with single bunch
2008-04-15 - Petr Morozov; DESY
2008-04-15 - Petr Morozov; DESY
2008-04-08
CTR spectroscopy below 25um (666KB)
CTR spectroscopy below 25um
2008-04-08 - Stephan Wesch; Uni Hamburg
2008-04-08 - Stephan Wesch; Uni Hamburg
2008-04-01
Transverse focusing in FLASH: theory and last experimental results (2.4 MB)
Transverse focusing in FLASH: theory and last experimental results
2008-04-01- Nina Golubeva, DESY
2008-04-01- Nina Golubeva, DESY
MIMO-LTI feedback controller Design (691KB)
MIMO-LTI feedback controller Design
2008-04-01 - Ch.Schmidt; DESY and TU Harburg
2008-04-01 - Ch.Schmidt; DESY and TU Harburg
2008-03-18
2008-03-11
Progress on sFLASH design (1.1 MB)
Progress on sFLASH design
2008-03-11 - Velizar Miltchev; Uni. Hamburg
2008-03-11 - Velizar Miltchev; Uni. Hamburg
2008-03-04
Longitudinal bunch profile studies using infrared spectroscopy techniques (3.2 MB)
Longitudinal bunch profile studies using infrared spectroscopy techniques
2008-03-04 - Hossein Delsim-Hashemi; Uni Hamburg
2008-03-04 - Hossein Delsim-Hashemi; Uni Hamburg
2008-02-26
Commissioning of the BAM system at FLASH (4.0 MB)
Commissioning of the BAM system at FLASH
2008-02-26 - Florian Loehl; DESY
2008-02-26 - Florian Loehl; DESY
Statistical Analysis of FLASH (135KB)
Statistical Analysis of FLASH-uptime- and downtime-durations
2008-02-26 - Norbert Pchalek; Uni Hamburg
2008-02-26 - Norbert Pchalek; Uni Hamburg
2008-02-19
FLASH farinfrared (FIR) beamline (2.2 MB)
Light at the FLASH farinfrared (FIR) beamline - second coming
2008-02-19 - M. Gensch; DESY
2008-02-19 - M. Gensch; DESY
2008-02-12
2008-02-05
LLRF Control: Operational Issues (2.3 MB)
LLRF Control: Operational Issues
2008-02-05 - Valeri Ayvazyan; DESY, Wojciech Cichalewski; Technical University of Lodz, Poland, Stefan Simrock; DESY
2008-02-05 - Valeri Ayvazyan; DESY, Wojciech Cichalewski; Technical University of Lodz, Poland, Stefan Simrock; DESY
2008-01-29
Damage of XFEL optical elements (1.0 MB)
Damage of XFEL optical elements
2008-01-29 - Hubertus Wabnitz; DESY
2008-01-29 - Hubertus Wabnitz; DESY
2008-01-22
Multi-Cavity Complex Controller for Low Level Radio Frequency System (1.0 MB)
Multi-Cavity Complex Controller for Low Level Radio Frequency System, Accelerator studies - September 2007, January 2008
2008-01-22 - Tomasz Czarski; DESY
2008-01-22 - Tomasz Czarski; DESY
New features of the LLRF controller (681KB)
New features of the LLRF controller
2008-01-22 - (Wojciech Jalmuzna; Technical University of Lodz, Poland
2008-01-22 - (Wojciech Jalmuzna; Technical University of Lodz, Poland
2008-01-15
Beam tilt studies at FLASH (421KB)
Beam tilt studies at FLASH, FEL studies –Autumn 2007>br>2008-01-15 - E.Prat; DESY
Progress of the TEO experiment at FLASH (4.2 MB)
A noninvasive timing and electron bunch density monitor at FLASH
2008-01-15 - Armin Azima; DESY/HASYLAB
2008-01-15 - Armin Azima; DESY/HASYLAB
2008-01-08
Undulator demagnetization due to radiation losses at FLASH (1.1 MB)
Undulator demagnetization due to radiation losses at FLASH
2008-01-08 - Jochen Skupin/Joachim Pflueger; DESY
2008-01-08 - Jochen Skupin/Joachim Pflueger; DESY
Commissioning of the IR beamline (2.4 MB)
Commissioning of the IR beamline at FLASH
2008-01-08 - Michael Gensch; DESY
2008-01-08 - Michael Gensch; DESY
2007-12-18
Piezo control for ACC3,5,6 (3.1 MB)
Piezo control for ACC3,5,6 in FLASH
2007-12-18 - Mariusz Grecki; DESY
2007-12-18 - Mariusz Grecki; DESY
Radiation Measurements at FLASH and PITZ< (228KB)
Radiation Shielding for Electronic Devices Operating in XFEL Environment: Monte Carlo Simulations and Radiation Measurements at FLASH and PITZ
2007-12-18 - B. Mukherjee; DESY
2007-12-18 - B. Mukherjee; DESY
2007-12-11
Measurements at the BC2 synchrotron radiation beamline (294KB)
Measurements at the BC2 synchrotron radiation beamline
2007-12-11 - Oliver Grimm; Uni. Hamburg
2007-12-11 - Oliver Grimm; Uni. Hamburg
Observations of Short Wavelength CSR at BC3 (2.8 MB)
First observations of short wavelength coherent synchrotron radiation at BC3
2007-12-11 - Christopher Behrens; Uni. Hamburg
2007-12-11 - Christopher Behrens; Uni. Hamburg
The THz beamline to 28g reloaded (1.4 MB)
The THz beamline to 28g reloaded
2007-12-11 - Bernhardt Schmidt; DESY
2007-12-11 - Bernhardt Schmidt; DESY
2007-12-04
Velocity Bunching Studies at FLASH (1.0 MB)
Measurements of bunch length and emittance under velocity bunching conditions
2007-12-04 - Bolko Beutner; DESY
2007-12-04 - Bolko Beutner; DESY
Lasing with Long Bunch Trains (1.9 MB)
Milestone: FEL operation with 800 bunches per macropules and >10 µJ/pulse
2007-12-04 - Lars Fröhlich; DESY and University of Hamburg
2007-12-04 - Lars Fröhlich; DESY and University of Hamburg
2007-11-27
Optical Replica Synthesizer Experimental Shifts (1.4 MB)
Lessons learnt during Optical Replica Commissioning
2007-11-27 - Volker Ziemann; Uppsala University)
2007-11-27 - Volker Ziemann; Uppsala University)
Installation of Optical Replica Synthesizer (4.2 MB)
Lessons learnt during Optical Replica Commissioning
2007-11-27 - Gergana Angelova; Uppsala University
2007-11-27 - Gergana Angelova; Uppsala University
Laser and Electron overlap .avi file (170KB)
Laser and Electron Bunch overlap during Oktober 2007 Shift block for ORS
Laser and Electron Bunch overlap .mpg file (1.1 MB)
Laser and Electron Bunch overlap during Oktober 2007 Shift block for ORS
2007-11-20
Recent results of Gun Studies at FLASH (1.3 MB)
Recent results of Gun Studies at FLASH
2007-11-20 - Jang-Hui Han; DESY
2007-11-20 - Jang-Hui Han; DESY
2007-11-13
Measurement of Slice and Projected Emittance (584KB)
Slice emittanceand bunch profile measurements with LOLA (09.10.07)
2007-11-13 - M.Roehrs; DESY
2007-11-13 - M.Roehrs; DESY
Measurement of Slice and Projected Emittance (406KB)
Measurements of projected emittance at FLASH
2007-11-13 - E.Prat; DESY
2007-11-13 - E.Prat; DESY
2007-10-30
Commissioning of the infrared undulator (1.6 MB)
Commissioning of the infrared undulator
2007-10-30 - O.Grimm, DESY
2007-10-30 - O.Grimm, DESY
Photondiagnostic of the FIR undulator (1.8 MB)
(First) Photondiagnostic of the FIR Undulator
2007-20-30 - M.Gensch; DESY
2007-20-30 - M.Gensch; DESY
2007-10-23
Update on the FLASH BPMs and HOM-BPMs (1.0 MB)
Update on the FLASH BPMs and HOM-BPMs
2007-10-23 - N.Baboi, DESY
2007-10-23 - N.Baboi, DESY
2007-10-16
FLASH shutdown and commissioning 2007 (2.0 MB)
FLASH shutdown and commissioning 2007
2007-10-16- K. Honkavaara; DESY / UNI HH
2007-10-16- K. Honkavaara; DESY / UNI HH
2007-09-04
JAVA Applications for FLASH (2.3 MB)
JAVA Applications for FLASH
2007-09-04 - E.Sobrowski,P. Gessler; DESY
2007-09-04 - E.Sobrowski,P. Gessler; DESY
2007-08-14
A more reproducible operation of FLASH with the new machine file system (339KB)
A more reproducible operation of FLASH with the new machine file system
2007-08-14 - Pedro Castro; DESY
2007-08-14 - Pedro Castro; DESY
2007-08-07
Active Radiation Monitoring Sensors (1.8 MB)
Active Radiation Monitoring Sensors for the High Energy Physics Experiments of the CERN LHC
2007-08-07 - F. Ravotti, CERN and IES - University Montpellier II
2007-08-07 - F. Ravotti, CERN and IES - University Montpellier II
Optically Stimulated Luminescence Dosimetry (484KB)
Optically Stimulated Luminescence Dosimetry Based on SrS:Ce,Sm Phosphor for High-Energy Physics Applications
2007-08-07 - D. Benoit, IES - University Montpellier II
2007-08-07 - D. Benoit, IES - University Montpellier II
2007-07-17
Saturation of the Hamamatsu of the Undulator Wire Scanner (751KB)
Saturation of the Hamamatsu of the Undulator Wire Scanner - Investigation with a LED
2007-07-17 - A.Wipprecht; DESY
2007-07-17 - A.Wipprecht; DESY
2007-06-26
Improvements of the LLRF system at FLASH (3.0 MB)
Improvements of the LLRF system at FLASH
2007-06-26 - Mariusz Grecki/Waldemar Koprek; DESY
2007-06-26 - Mariusz Grecki/Waldemar Koprek; DESY
2007-06-19
Flash Injector Studies (1.8 MB)
Injector beam control studies winter 2006/07
2007-06-19 - E.Vogel; DESY
2007-06-19 - E.Vogel; DESY
Photo cathode laser timing response measurements (2.8 MB)
Photo cathode laser timing response measurements
2007-06-19 - F. Loehl; DESY
2007-06-19 - F. Loehl; DESY
2007-06-12
Beam Interlock System @ FLASH (1.3 MB)
Beam Interlock System @ FLASH - tasks and features
2007-06-12 - M.Staack; DESY
2007-06-12 - M.Staack; DESY
2007-06-05
Progress on BPMs & HOM-BPMs (326KB)
Progress on the FLASH BPMs and HOM-BPMs
2007-06-05 - N.Baboi; DESY
2007-06-05 - N.Baboi; DESY
Electron Beam Transverse Diagnostics (1.1 MB)
Status of the Electron Beam Transverse Diagnostics with Optical Diffraction Radiationat FLASH
2007-06-05 - E.Chiadroni - INFN
2007-06-05 - E.Chiadroni - INFN
2007-05-29
Radiation Levels at FLASH (819KB)
Measurement of Critical Radiation Levels at FLASH and their Relevance to XFEL
2007-05-29 - B. Mukherjee, DESY
2007-05-29 - B. Mukherjee, DESY
2007-05-22
Changes in the experimental Hall (1.7 MB)
Update on FLASH user infrastructure: Changes in the experimental Hall
2007-05-22 - R.Treusch; DESY
2007-05-22 - R.Treusch; DESY
2007-05-15
On-crest slice emittance measurements (733KB)
On-crest slice emittance measurements
2007-05-15 - M. Röhrs, DESY
2007-05-15 - M. Röhrs, DESY
2007-05-08
FLASH Commissioning and Startup (199KB)
FLASH Commissioning and Startup
20074-05-08 - Siegfried Schreiber, DESY
20074-05-08 - Siegfried Schreiber, DESY
2007-04-24
2007-04-17
Projected Emittance Measurements (515KB)
Summary of projected emittance measurements at FLASH
2007-04-17 - E.Prat, DESY
2007-04-17 - E.Prat, DESY
Beam Time Request (90KB)
Beam time request procedure for FEL and accelerator studies at FLASH
2007-04-17 - B.Faatz / K.Honkavaara, DESY / Uni Hamburg
2007-04-17 - B.Faatz / K.Honkavaara, DESY / Uni Hamburg
2007-04-03
Long Pulse Operation (1.0 MB)
Transmission of 800 bunches - one step towards design parameters
2007-04-03 - L. Fröhlich, DESY/Uni Hamburg
2007-04-03 - L. Fröhlich, DESY/Uni Hamburg
Accelerator studies at FLASH (1.0 MB)
Accelerator studies at FLASH 11.-22.12.2006 and 08.-21.01.2007
2007-04-03 - K.Honkavaara - DESY / Uni Hamburg
2007-04-03 - K.Honkavaara - DESY / Uni Hamburg
2007-03-27
Femto-second synchronization system (2.8 MB)
Femto-second synchronization system for FLASH - Prototype for XFEL -
2007-03-27 - H.Schlarb, DESY
2007-03-27 - H.Schlarb, DESY
2007-03-20
FLASH LINAC Upgrade (194KB)
FLASH LINAC Upgrade, new and repaired modules
2007-03-20 - D. Kostin, DESY
2007-03-20 - D. Kostin, DESY
MCP-based detector at FLASH (482KB)
MCP-based detector at FLASH for wavelength range down to 5 nm
2007-03-20 - M. Yurkov, DESY for HASYLAB/JINR MCP project group
2007-03-20 - M. Yurkov, DESY for HASYLAB/JINR MCP project group
Installation of a high-precision BPM in BC3 (483KB)
Installation of a high-precision BPM in BC3
2007-03-20 - K.Hacker, DESY
2007-03-20 - K.Hacker, DESY
2007-03-13
New bunch compression monitor(s) (2.8 MB)
New bunch compression monitor(s)
2007-03-13 -B.Schmidt, DESY
2007-03-13 -B.Schmidt, DESY
new OTR stations in SUND / SEED section (231KB)
4 OTR stations in SUND / SEED section will be replaced by 4 OTR+WS stations
2007-03.13- K. Honkavaara, DESY / Uni HH
2007-03.13- K. Honkavaara, DESY / Uni HH
High Precision Bunch Arrival Time Monitors (1.6 MB)
Installation of high precision bunch arrival time monitors in the FLASH linac - 2007-03-13 - F. Löhl, DESY
2007-03-06
2007-02-27
Optical Replica Synthesizer (1.7 MB)
Installation of the Optical Replica Synthesizer (ORS) at FLASH
2007-02-27 - G. Angelova, Uppsala University Sweden
2007-02-27 - G. Angelova, Uppsala University Sweden
2007-02-20
Infrared Beamline to Experimental Hall (1.3 MB)
Infrared Beamline to Experimental Hall (IBTEH?)
2007-02-20 - M.Gensch, DESY
2007-02-20 - M.Gensch, DESY
2007-02-13
Infrared Undulator Project (2.7 MB)
The Infrared Undulator Project at FLASH
2007-02-13 - O.Grimm, DESY
2007-02-13 - O.Grimm, DESY
2007-02-06
2007-01-23
ACC1 Beam Orbit Influence (2.8 MB)
ACC1 Beam Orbit Influence on BC2 Transverse Tilt
2007-01-23 - K.Hacker - DESY
2007-01-23 - K.Hacker - DESY
Proposal for a Phase Information Server (153KB)
A proposal for a DOOCS server containing on-crest and SASE phases
2007-01-23 - P. Castro, L. Fröhlich, B. Polzin, DESY
2007-01-23 - P. Castro, L. Fröhlich, B. Polzin, DESY
Synchrotron Light Monitor (1.3 MB)
Synchrotron Light Monitor -First Applications -
2007-01-23 - Ch. Gerth; DESY
2007-01-23 - Ch. Gerth; DESY
2007-01-16
Alternating Bi-level Accelerating Gradient Test (2.4 MB)
Alternating Bi-level Accelerating Gradient Test at FLASH
2007-01-16 - Valeri Ayvazyan, DESY
2007-01-16 - Valeri Ayvazyan, DESY
Beam loading compensation with beam monitor signal (1.7 MB)
Beam loading compensation with beam monitor signal
2007-01-16 - Elmar Vogel, DESY
2007-01-16 - Elmar Vogel, DESY
2007-01-09
2006-12-19
DAQ for FLASH (2.4 MB)
DAQ for FLASH operation and experiments
2006-12-19 - Raimund Kammering & Vladimir Rybnikov, DESY
2006-12-19 - Raimund Kammering & Vladimir Rybnikov, DESY
2006-12-12
Automation of FLASH accelerator's subsystems (440KB)
General Approach to Automation of FLASH accelerator's subsystems
2007-12-12 - Boguslaw Koseda, Technical University Lodz
2007-12-12 - Boguslaw Koseda, Technical University Lodz
Klystron nonlinearites measurement and linearisation method tests (3.0 MB)
Klystron 2 & 5 nonlinearites measurement and linearisation method tests
2006-12-12 - W. CICHALEWSKI, Technical University Lodz
2006-12-12 - W. CICHALEWSKI, Technical University Lodz
2006-12-05
Beam Position Measurement with BPMs and HOM-BPMs (2.4 MB)
Beam Position Measurement with BPMs and HOM-BPMs - Last Measurements and Status
2006-12-05 - Nicoleta Baboi, DESY
2006-12-05 - Nicoleta Baboi, DESY
Coherent radiation diagnostics (837KB)
Coherent radiation diagnostics at FLASH
2006-12-05 - B.Schmidt, DESY
2006-12-05 - B.Schmidt, DESY
2006-11-28
2006-11-21
Investigation of the Bunch Structure (449KB)
Investigation of the Longitudinal Electron Bunch Structure with LOLA
2006-11-21 - Michael Röhrs, Christopher Gerth, Holger Schlarb, DESY
2006-11-21 - Michael Röhrs, Christopher Gerth, Holger Schlarb, DESY
2006-11-14
Analysis of coherent terahertz synchrotron radiation with a superconducting hot electron bolometer (1.9 MB)
Analysis of coherent terahertz synchrotron radiation with a superconducting hot electron bolometer
2006-11-14 - H.-W. Hübers, Deutsches Zentrum für Luft- und Raumfahrt Institut für Planetenforschung
2006-11-14 - H.-W. Hübers, Deutsches Zentrum für Luft- und Raumfahrt Institut für Planetenforschung
2006-11-07
BBA in the undulator (718KB)
Progress status of beam-based alignment in the undulator section
2006-11-07 - P.Castro, DESY
2006-11-07 - P.Castro, DESY
2006-10-31
Controlling of ACC1 by SIMCON 3.1 (1.0 MB)
Controlling of ACC1 by SIMCON 3.1
2006-10-31 - Waldemar KoprekDESY
2006-10-31 - Waldemar KoprekDESY
A New Laser Buildung at FLASH (2.4 MB)
A New Laser Buildung at FLASH for ORS, HHG, OCAS, EOS, CTR and all that
2006-10-31 - S. Khan
2006-10-31 - S. Khan
2006-10-24
Bunch Arrival Time (4.0 MB)
A High Resolution Bunch Arrival Time Monitor System for FLASH / XFEL
2006-10-24 - F.Loehl
2006-10-24 - F.Loehl
Passive Time-Of-Flight Measurements (367KB)
Passive Time-Of-Flight Measurements at FLASH
2006-10-24 - Martin Kollewe
2006-10-24 - Martin Kollewe
2006-10-17
High Gradient and Cryo Measurements (724KB)
High Gradient and Cryo Measurements
2006-10-17 - Denis Kostin, DESY
2006-10-17 - Denis Kostin, DESY
2006-09-26
Photocathodes Studies @ FLASH (2.2 MB)
Photocathodes Studies @ FLASH: Quantum Efficiency(QE)
2006-09-26 - L.Monaco
2006-09-26 - L.Monaco
2006-09-19
2006-09-12
2006-09-05
Status of the Electron Beam Transverse Diagnostics with ODR (1.7 MB)
Status of the Electron Beam Transverse Diagnostics with Optical Diffraction Radiation at FLASH
2006-09-05 - E. Chiadroni
2006-09-05 - E. Chiadroni
Accelerator studies at FLASH (1.2 MB)
Summary of Accelerator studies at FLASH in summer 2006
2006-09-05 - K.Honkavaara
2006-09-05 - K.Honkavaara
2006-06-27
Recent experimental results at FLASH (3.0 MB)
Recent experimental results at FLASH
2006-06-27 - M.Yurkov
2006-06-27 - M.Yurkov
2006-06-13
Control system modeling for superconducting cavity (786KB)
Control system modeling for superconducting cavity. Experimental results for ACC1 module driven with SIMCON board.
2006-06-13 - Tomasz Czarski
2006-06-13 - Tomasz Czarski
slice-emittance and energy-time measurements with LOLA (1.2 MB)
Measurements of slice-emittance and energy-time correlation at FLASH using the vertically deflecting rf-structure LOLA
2006-06-13 - Michael Roehrs
2006-06-13 - Michael Roehrs
2006-06-06
Radiation detection and measurement (1.1 MB)
Radiation detection and measurement in FLASH tunnel
2006-06-06 - Bhaskar Mukherjee
2006-06-06 - Bhaskar Mukherjee
2006-05-30
LLRF Automation and Adaptive Feedforward (1.8 MB)
LLRF Automation and Adaptive Feedforward
2006-05-30 - Alexander Brandt
2006-05-30 - Alexander Brandt
2006-05-23
Controlling Gun & ACC1 with SimCon 3.1 (2.0 MB)
Controlling RF gun and ACC1 with SimCon 3.1
2006-05-23 - W. Koprek in collaboration with Elmar Vogel and Piotr Pucyk
2006-05-23 - W. Koprek in collaboration with Elmar Vogel and Piotr Pucyk
2005-05-16
Feedback Controller Design for ACC1 (572KB)
LLRF Feedback Controller Design for ACC1
2005-05-16 - Saulat Chughtai, Gerwald Lichtenberg
2005-05-16 - Saulat Chughtai, Gerwald Lichtenberg
2006-05-09
Summary of accelerator studies (1.3 MB)
Summary of accelerator studies at VUV-FEL (FLASH) 27.2-9.4.2006
2006-05-09 - K.Honkavaara
2006-05-09 - K.Honkavaara
2006-05-02
Orbit Investigations with deGaussed Undulator Quadrupoles (196KB)
Orbit Investigations with deGaussed Undulator Quadrupoles
2006-05-02 - P.Castro
2006-05-02 - P.Castro
FEL Studies - Dipole field along the undulator (1.7 MB)
Orbit and power growth along the undulator due to a constant dipole field along the undulator
2006-05-02 - B.Faatz
2006-05-02 - B.Faatz
Jitter measurement by electro-optical sampling (1.8 MB)
Jitter measurement by electro-optical sampling VUV-FEL at DESY
2005-05-02 A.Azima
2005-05-02 A.Azima
2006-04-25
Time-Of-Flight measurements (1.6 MB)
Time-Of-Flight measurements at FLASH - Status of the Setup -
2006-04-25 - M.Kollewe
2006-04-25 - M.Kollewe
Electro Optic Sampling at TTF2 (1.7 MB)
Electro Optic Sampling at TTF2 -Recent results -
2005-04-25 - B. Steffen
2005-04-25 - B. Steffen
2006-04-18
HOM status in April (541KB)
Using HOM Signals for Measuring the Cavity Alignment and Beam Position
2006-04-17 - Josef Frisch
2006-04-17 - Josef Frisch
2005-04-11
Longitudinal Bunch Profile Studies (812KB)
Last progresses on longitudinal bunch profile studies using infrared spectroscopy techniques
2005-04-11 - H. Delsim-Hashemi, O. Grimm, B. Schmidt, P. Schmueser
2005-04-11 - H. Delsim-Hashemi, O. Grimm, B. Schmidt, P. Schmueser
2006-04-04
VUV-FEL - Statistics (77KB)
VUV-FEL - Statistics, machine statistics, i.e. down time, beam delivery etc.
2006-04-04 - N.Pchalek
2006-04-04 - N.Pchalek
2006-03-28
Long pulses at the VUV-FEL (2.3 MB)
First operation with macropulses of up to 300 bunches
2006-03-28 - Lars Fröhlich
2006-03-28 - Lars Fröhlich
2006-03-21
Double-pulse generation with injector laser (1.3 MB)
Double-pulse generation with the injector laser for pump/probe experiments
2006-03-21 - O. Grimm, K. Klose, S. Schreiber
2006-03-21 - O. Grimm, K. Klose, S. Schreiber
Gas Monitor Detector Electronics (2.1 MB)
Gas Monitor Detector Electronics - from charged particles to digital value
2006-03-21 Fini Jastrow
2006-03-21 Fini Jastrow
2006-03-14
Re-design of BC2 (1.8 MB)
Re-design considerations for vacuum chamber layout of BC2
2006-03-16 - Chistopher Gerth
2006-03-16 - Chistopher Gerth
Status of the Optical Replica Synthesizer Experiment (897KB)
Status of the Optical Replica Synthesizer Experiment
2006-03-14 - V. Ziemann, Uppsala University; P. van der Meulen, Stockholm University; H. Schlarb, M. Yurkov, E. Schneidmiller, E. Saldin, DESY
2006-03-14 - V. Ziemann, Uppsala University; P. van der Meulen, Stockholm University; H. Schlarb, M. Yurkov, E. Schneidmiller, E. Saldin, DESY
2006-02-21
Accelerator Studies (175KB)
Overview of the accelerator studies 27.2-9.4.2006
2006-02-21 K.Honkavaara
2006-02-21 K.Honkavaara
2006-02-07
Dispersion Measurements (484KB)
Dispersion Measurements at VUV-FEL FEL R&D Program – Week2 2006
W. Decking, T. Limberg, E. Prat
W. Decking, T. Limberg, E. Prat
2006-01-31
Stretched Wire Alignment System (2.9 MB)
Stretched Wire Alignment System @ VUV FEL
2006-01-31 J.Prenting
2006-01-31 J.Prenting
2006-01-24
BBA results in undulator section (155KB)
Results of beam-based alignment in undulator section
2004-01-24, P.Castro
2004-01-24, P.Castro
2006-01-10
DOOCS based Orbit Feedback (899KB)
A DOOCS / DAQ middle layer based Orbit Feedback
2006-01-10, V. Kocharyan, K. Rehlich, V. Rybnikov, H. Schlarb, R. Kammering
2006-01-10, V. Kocharyan, K. Rehlich, V. Rybnikov, H. Schlarb, R. Kammering
2005-12-13
Oscillations of the Wirescanner (1.0 MB)
Wire-oscillations during operation of the Wirescanner
2005-12-13, R. Platzek
2005-12-13, R. Platzek
2005-12-06
Dispersion Measurements (431KB)
Dispersion Measurements at VUV-FEL FEL R&D Program – Weeks 47 & 48
2005-12-06, W. Decking, T. Limberg, E. Prat
2005-12-06, W. Decking, T. Limberg, E. Prat
2005-11-22
Dispersion Measurements (150KB)
results of the dispersion measurements weeks 47&48
2005-11-22 W.Decking, T.Limberg, E.Prat
2005-11-22 W.Decking, T.Limberg, E.Prat
Cross Calibration BPM/WS (120KB)
Cross-calibration BPM and wirescanners in undulator section
2005-11-22, N. Baboi, P.Castro
2005-11-22, N. Baboi, P.Castro
2005-11-03
BPM Development (1.0 MB)
BPM Development at the VUV-FEL KW40-41
2005-11-03, N.Baboi, D.Noelle, J.Lund-Nielsen, J.Kruse
2005-11-03, N.Baboi, D.Noelle, J.Lund-Nielsen, J.Kruse
Supplement to "Results of BBA" (290KB)
Measurement of the relative alignment between wirescanners and quadrupoles in the undulator section of VUV FEL
P. Castro, Technical Note DESY 2005-4
P. Castro, Technical Note DESY 2005-4
Transfer Matrix Measurements (1016KB)
Transfer Matrix Measurements VUV-FEL KW46-47 and KW2
2005-11-03, C.Gerth
2005-11-03, C.Gerth
2005-10-22
2005-01-18
