Mini Workshop on "Characterization of High Brightness Beams"

26 May 2008, 08:30 → 30 May 2008, 18:00 Europe/Berlin

S3 (Zeuthen)

DESY am Zeuthener See

Monday 26 May

Welcome

slides FS_Welcome.pdf

SLAC talks on data taking and data analysis

1 Emittance measurement and analysis tools for LCLS

Slides loos_emitFLASH.pdf

2 Analysis of FLASH emittance measurement data with SLAC tools

Speaker: H. Loos

Slides loos_emitFLASH.pdf

10:10 break

SPARC talks on data taking and data analysis

slides 20080526_mostacci.pdf

3 Movable emittance-meter data analysis methodology and emittance computation from measured phase space analysis

Speaker: A. Mostacci

Slides 20080526_mostacci.pdf

4 Application of SPARC data analysis tool to benchmark data

Speaker: E. Chiadroni

Slides PITZDataAnalysis.pdf

5 Spatial autocorrelation as a transverse beam quality factor

Speaker: V. Fusco

Slides autocor_Zeuthen_finale_23_Maggio.pdf

Additional contributions

6 Beam Diagnostics for the SRF photo injector

Speaker: T. Kamps

Slides TKamps_CHBB08_Workshop_2008-05-25.pdf

12:35 break

PITZ talks on data taking and data analysis

slides asova.pdf

7 Data taking, data analysis and results of emittance measurements at PITZ

Speaker: L. Staykov

Slides CHBB08_Staykov.pdf

8 Analyzing SPARC data with PITZ analysis tools

Speaker: S. Rimjaem

Slides Rimjaem_PITZToolToSPARCDatal.pdf

9 Analyzing SLAC data with PITZ analysis tool

Speaker: R. Spesyvtsev

Slides LCLSDataAnalys.pdf

10 Analyzing FLASH data with PITZ analysis tools

Speaker: G. Asova

Slides asova.pdf

11 Principal limitations and systematic deviations regarding the slit measurement method

Speaker: M. Krasilnikov

Slides CHBB08_MK1_3.pdf

15:45 break

FLASH talks on data taking and data analysis

12 Emittance measurement and analysis tools for FLASH

Speaker: C. Gerth

Slides Gerth_WS08_FLASH_2.pdf

13 Analysis of LCLS emittance measurement data with FLASH tools

Slides Gerth_WS08_LCLS.pdf

14 Optics solutions for the XFEL injector diagnostics

Speaker: Y. Kot

Slides optics_talk_zeuthen.pdf

Tuesday 27 May

Minimum criteria for consistent data taking and data analysis from different points of view

slides CHBB08_Staykov2.pdf

15 SLAC point of view

Speaker: H. Loos

Slides loos_analysisPOV.pdf

16 SPARC point of view

Speaker: M. Ferrari

Slides Massimo.pdf

17 PITZ point of view

Slides CHBB08_MK2_2.pdf CHBB08_Staykov2.pdf

18 FLASH point of view

Speaker: K. Honkavara

Slides katja-emittance.pdf

09:30 break

Discussion time to define commonly agreed criteria for data taking and analysis procedures

19 ..Cut

Speaker: M. Krasilnikov

Slides CHBB08_MK2_2.pdf

20 Develop strategy for writing a common paper with the conclusions to be referred to later on

21 Develop strategy for providing algorithms which fulfill the criteria to the community

12:30 break

Excursion

Wednesday 28 May

Morning Session

22 Thermal emittance measurement for Cu photo-cathode at SPARC

Speaker: G. Gatti

Slides thermal_emitt_sparc_ggatti.pdf

23 Characterization of SPARC photo injector cathode

Speaker: L. Cultrera

Slides Cathode_characterization_at_SPARC.pdf

24 QE at PITZ and FLASH

Speaker: S. Lederer

Slides Lederer_CoHBB_QE.pdf

25 Thermal emittance studies at PITZ

Slides Lederer_CoHBB_thermal_emittance.pdf

10:30 break

Morning session II

26 (no title)

27 The Photocathode R&D Program at LBNL

Speaker: W. Wan

Slides Cathode_Zeuthen_Wan.pdf

12:30 break and taking a photograph of the workshop participants

Afternoon Session I

28 Magnesium Cathode QE Characterization and Thermal Emittance minimization With Oblique Incident Optics at the NSLS SDL

Speaker: X. Wang

Slides xwang.pptx

29 QE measurements from metallic cathodes in Pulsed Diode Gun configuration

Speaker: R. Ganter

Slides PitzW_Ganter_May.08_short.pdf

30 Realistic Thermal Emittance Measurements at the Low Emittance Gun (LEG) Test Facility for PSI XFEL Project

Speaker: Y. Kim

Slides psi_xfel10_MiniWS21_final.pdf

31 Electron emission features in simulation codes

Speaker: Jang-Hui Han

Slides HAN_Electron_Emission_Codes.pdf

32 Thermal emittance and response time from negative electron affinity photo cathodes

Speaker: I. Bazarov

Slides Bazarov_nea_cathodes_thermemit_response.pdf

working break and general discussion

33 high QE against small thermal emittance

34 other cathode types

Afternoon session II

35 "Fiber bundle laser shaping with backward illumination" and "Z-polarized laser on the cathode & field emission with Schottky effect"

Speaker: H. Tomizawa

Slides Zeuten_2008-tomizawa.pdf

36 Discussion on criteria for data taking and analysis procedures

Speaker: H. Loos

Slides loos_analysisDiscussion.pdf

Thursday 29 May

Morning Session I

37 Comparisons of measurements and simulations for bunch charge vs. phase, transverse beam size vs. solenoid current, and emittance as a function of various machine parameters (solenoid current, gun phase, cathode laser transverse size) at PITZ

Slides CHBB08_MK3_1.pdf

38 Comparisons of measurements and simulations for bunch temporal profiles, beam longitudinal momentum profiles and longitudinal phase space at PITZ

Speaker: J. Rönsch

Slides workshop_CHBB-2008_PITZ_JR.pdf

39 Transverse beam dynamics simulations vs. measurements in the SPARC emittance meter

Speaker: C. Ronsivalle

Slides Ronsivalle_Zeuthen.pdf

40 Longitudinal beam dynamics simulations vs. measurements in the SPARC emittance meter

Speaker: D. Filippetto

Slides DanieleFilippettoCHBB2008.pdf

10:30 break

Morning session II

41 (no title)

42 Measurements of CSR and its Impact on the LCLS Electron Beam

Speaker: Z. Huang

Slides CSR-Huang.pdf

43 about comparison of transverse phase space in simulations and measurements at FLASH

Speaker: E. Prat

Slides eprat.pdf

44 about comparison of longitudinal phase space in simulations and measurements at FLASH

Speaker: B. Beutner

Slides zeuthen_longitudinal.pdf

12:50 break

Afternoon session I

45 Space charge codes benchmarking using a DC gun

Slides sc_code_benchmarking.pdf

46 On the LCLS slice emittance measurement method

Slides loos_emitSlice.pdf

47 On the slice emittance measurement method and results at FLASH

Speaker: M. Röhrs

Slides mroehrs_wszeuthen.pdf

15:25 break

Afternoon session II

48 Slice emittance measurements at PITZ using energy chirp in booster

Speaker: Y. Ivanisenko

Slides Ivanisenko_SlEm.pdf

49 Slice emittance measurements at PITZ using quad scan with streak readout

Speaker: Roman Spesyvtsev (DESY, Zeuthen)

Slides Spesyv_Streak.pdf

50 Slice emittance measurements at SPARC

Speaker: B. Marchetti

Slides marchetti.pdf

51 further contributions and general discussion

- reliability of slice emittance measurements - usability of slice emittance measurements for beam optimization (correspondence of measurement and simulations) - correspondence of machine parameters for optimum slice emittance and optimum projected emittance

Slides loos_analysisDiscussion.ppt

19:00 Workshop barbeque at the Zeuthen lake (if weather allows, otherwise close to the canteen)

Friday 30 May

COTR (coherent light at visible wavelength from view screens)

52 SLAC observations of COTR

Speaker: J. Frisch

Slides SLAC_observations_of_COTR.pdf

53 COTR + CSR from longitudinal space charge microbunching instability

Speaker: Z. Huang

Slides uBunching-Huang.pdf

54 Imaging of micro bunched electron beams with COTR

Slides loos_COTR.pdf

10:00 break

COTR II

55 Anolmalous OTR Images of Compresses beams at the APS Linac

Speaker: K. Harkay

Slides harkay-lumpkin-OTR-APS.pdf

56 On findings on this topic at FLASH

Speaker: B. Beutner

Slides Zeuthen_COTR.pdf

57 COTR, Coherent Harmonic Radiation and Gun Drive Laser

Speaker: X.J. Wang

Slides cotr_SDL_Wang_New.pdf

58 Emittance growth from non-uniform beam distributions

Speaker: C. Boulware (DESY Zeuthen)

Slides Chase(transverse_energy).pdf

59 Alternative diagnostic methods for optically bunched beams

12:30 break

Continuation of discussion in the morning

15:30 break

Further contributions or more discussion