4th ARD ST3 Workshop - Matter and Technology

Session

Session 3: Beam Dynamics and Photon Sources

15 Jul 2016, 09:00

WCRC Hörsaal (14.51-3147) (HZB Berlin)

22. Status and Applications of Superconducting Radio-Frequency (SRF) Photoinjectors

Ms Eva Panofski (Helmholtz-Zentrum Berlin)

15/07/2016, 09:00

23. The FemtoSpeX facility: Overview and Science with 100 fs (FWHM) X-ray pulses

Karsten Holldack

15/07/2016, 09:20

37. SP1: Considerations for Low-alpha operation in the BESSY II Booster

Dr Terry Atkinson (HZB)

15/07/2016, 09:40

It is becoming increasingly apparent that the existing injector systems at BESSY II require an upgrade to meet the high demands of BESSY VSR. A high gradient voltage beat is intended to create the complex longitudinal phase space for the storage of both long and short pulses. High injection rates into this scheme will only be possible using shorter bunches from the Booster. This contribution...

40. SP2: European XFEL Injector Commissioning

Dr Bolko Beutner (DESY)

15/07/2016, 09:43

In the first commissioning phase of the European XFEL SASE FEL driver linac we demonstrated the design goals for the injector section. These goals include reliable operation of sub-systems and feasible beam parameters like emittance and bunch length of the beam produced at the RF gun. Of particular interest is the operation of long bunch trains with up to 2700 bunches with a 4.5 MHz...

45. SP3: The Ellipsoidal Photocathode Laser System at the Photo Injector Test facility DESY, Zeuthen (PITZ)

Dr Tino Rublack (PITZ, DESY)

15/07/2016, 09:46

Optimized photoinjectors are crucial for successful linac-based, free electron laser operation. Beam dynamics simulations have shown that ellipsoidal photocathode laser pulses result in the lowest electron beam emittance. Therefore, in collaboration with the Institute of Applied Physics (Nizhny Novgorod, Russia) and the Joint Institute of Nuclear Research (Dubna, Russia), a prototype laser...

46. SP4: Progress on the AXSIS Attosecond X-Ray Facility

Dr Nicholas Matlis (DESY)

15/07/2016, 09:49

We present an overview of progress towards the development of the Frontiers in Attosecond Xray Science: Imaging and Spectroscopy (AXSIS) facility, including layouts of the facility, construction updates and progress in the machine design.

54. SP5: Comparison of experimental and theoretical CSR-driven instability thresholds at ANKA

Dr Peter Kuske (HZB)

15/07/2016, 09:52

Thanks to the improved observation techniques, a large amount of experimental results became available recently for the CSR-driven longitudinal single bunch instability thresholds at ANKA. Especially the half island of stability which exists for shorter bunches was investigated in detail. In this regime an unstable bunch will become stable again at certain higher bunch currents. For...

55. SP6: Studies on beam dynamics of a superconducting damping wiggler in the ANKA storage ring in low-alpha mode

Gethmann Julian (KIT)

15/07/2016, 09:55

In a collaboration between CERN and KIT a prototype of a superconducting damping wiggler for the CLIC damping rings has been installed at the ANKA synchrotron light source. The wiggler was designed and manufactured by the Budker Institute of Nuclear Physics, Novosibirsk, Russia. To investigate the wiggler’s influence on the beam dynamics in the presence of collective effects ANKA’s low-alpha...

56. SP7: Laser Driven High Field Terahertz Sources for Compact Electron Acceleration

Mr Koustuban Ravi (Center for free electron laser science)

15/07/2016, 09:58

A family of terahertz generation methods, unified by the common theme of enabling repeated (or cascaded) energy down-conversions of an infrared laser photon by nonlinear optical processes is introduced. The methods can enable laser-to-terahertz energy conversion efficiencies in the 10 % regime, which are two orders of magnitude larger than the current state of the art. Theoretical and record...

59. SP8: First Experimental Characterizations of Electron Beams for THz Options at PITZ

Mr Prach Boonpornprasert (DESY, Zeuthen)

15/07/2016, 10:01

The Photo Injector Test facility at DESY, Zeuthen site (PITZ) develops high brightness electron sources for modern linac-based Free Electron Lasers (FELs). The PITZ accelerator can also be considered as the ideal machine for the development of a tunable IR/THz source prototype for pump and probe experiments at the European XFEL. The IR/THz radiation generated by means of a SASE FEL and...

60. SP9: Inovesa: A Parallelized Vlasov-Fokker-Planck-Solver for Desktop PCs

Jonannes Steinmann (KIT)

15/07/2016, 10:04

In order to simulate the dynamics of an electron bunch in a storage-ring due to the self-interaction with its own coherent synchrotron radiation it is a well established method to numerically solve the Vlasov-Fokker-Planck equation. We present Inovesa, a modularly extensible program that uses OpenCL to massively parallelize the computation, allowing a standard desktop PC to work with...

61. SP10: Systematic Studies of Short Bunch-length Bursting at ANKA

Johannes Steinmann (KIT)

15/07/2016, 10:07

The so called low-alpha operation mode allows the reduction of the bunch length in a storage ring down to a few picoseconds. The micro bunching instabilities resulting from the high degree of longitudinal compression lead to fluctuations in the emitted intensity in the THz regime, referred to as bursting. For extreme compressed bunches (small shielding factor) bursting also occurs below the...

41. SP11: Production of ultrashort bunches having high arrival time stability at the SINBAD-ARES linac

Mr Jun Zhu (DESY)

15/07/2016, 10:10

Production of ultrashort bunches having high arrival time stability at the SINBAD-ARES linac

69. SP12: BESSY VSR - Short X-ray pulse production - Upgrade for BESSY II

Dr Paul Goslawski (Helmholtz-Zentrum Berlin, HZB)

15/07/2016, 10:13

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34. Poster Session: Beam Dynamics & Photon Sources

15/07/2016, 10:16