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Photon diagnostics for the seeding experiment at FLASH

Curbis, F. LU orcid ; Azima, A. ; Boedewadt, J. ; Delsim-Hashemi, H. ; Drescher, M. ; Maltezopoulos, T. ; Miltchev, V. ; Mittenzwey, M. ; Rossbach, J. and Tarkeshian, R. , et al. (2009) 31st International Free Electron Laser Conference, FEL 2009 p.754-757
Abstract

Starting from next year the technical feasibility of a direct seeding scheme at 30 and 13 nm will be studied at the Free-electron LASer in Hamburg (FLASH). During a major shutdown the SASE-FEL facility will be upgraded and it is planned to install in addition a high-harmonic generation (HHG) seed laser, a new chain of 10 m variable gap un-dulators and a dedicated commissioning beamline for photon diagnostics and pilot time-resolved pump-probe experiments. Besides demonstrating successful seeding at short wavelength, the project aims for time resolution in the 10 fs range to study ultrafast processes by combining the naturally synchronized FEL and optical seed laser pulses. After the extraction of the radiation in a magnetic chicane, a... (More)

Starting from next year the technical feasibility of a direct seeding scheme at 30 and 13 nm will be studied at the Free-electron LASer in Hamburg (FLASH). During a major shutdown the SASE-FEL facility will be upgraded and it is planned to install in addition a high-harmonic generation (HHG) seed laser, a new chain of 10 m variable gap un-dulators and a dedicated commissioning beamline for photon diagnostics and pilot time-resolved pump-probe experiments. Besides demonstrating successful seeding at short wavelength, the project aims for time resolution in the 10 fs range to study ultrafast processes by combining the naturally synchronized FEL and optical seed laser pulses. After the extraction of the radiation in a magnetic chicane, a short branch will accommodate intensity and beam monitors and a high-resolution spectrometer. The intensity monitor detects scattered photons from a gold mesh on a shot-to-shot basis using micro-channel plates (MCP) and XUV diodes. It is designed to detect photons several orders of magnitude apart in flux, i.e. spanning the wide range from spontaneous emission up to the seeded FEL radiation at gigawatt power level. Simulations of this device are presented as well as calibration measurements carried out at FLASH.

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publishing date
type
Contribution to conference
publication status
published
pages
4 pages
conference name
31st International Free Electron Laser Conference, FEL 2009
conference location
Liverpool, United Kingdom
conference dates
2009-08-23 - 2009-08-28
external identifiers
  • scopus:84884401135
language
English
LU publication?
no
id
28342c18-8646-4e37-abd0-a994e397a352
date added to LUP
2020-02-12 21:34:12
date last changed
2023-09-23 23:31:06
@misc{28342c18-8646-4e37-abd0-a994e397a352,
  abstract     = {{<p>Starting from next year the technical feasibility of a direct seeding scheme at 30 and 13 nm will be studied at the Free-electron LASer in Hamburg (FLASH). During a major shutdown the SASE-FEL facility will be upgraded and it is planned to install in addition a high-harmonic generation (HHG) seed laser, a new chain of 10 m variable gap un-dulators and a dedicated commissioning beamline for photon diagnostics and pilot time-resolved pump-probe experiments. Besides demonstrating successful seeding at short wavelength, the project aims for time resolution in the 10 fs range to study ultrafast processes by combining the naturally synchronized FEL and optical seed laser pulses. After the extraction of the radiation in a magnetic chicane, a short branch will accommodate intensity and beam monitors and a high-resolution spectrometer. The intensity monitor detects scattered photons from a gold mesh on a shot-to-shot basis using micro-channel plates (MCP) and XUV diodes. It is designed to detect photons several orders of magnitude apart in flux, i.e. spanning the wide range from spontaneous emission up to the seeded FEL radiation at gigawatt power level. Simulations of this device are presented as well as calibration measurements carried out at FLASH.</p>}},
  author       = {{Curbis, F. and Azima, A. and Boedewadt, J. and Delsim-Hashemi, H. and Drescher, M. and Maltezopoulos, T. and Miltchev, V. and Mittenzwey, M. and Rossbach, J. and Tarkeshian, R. and Wieland, M. and Duesterer, S. and Feldhaus, J. and Laarmann, T. and Schlarb, H. and Khan, S. and Meseck, A. and Ischebeck, R.}},
  language     = {{eng}},
  month        = {{12}},
  pages        = {{754--757}},
  title        = {{Photon diagnostics for the seeding experiment at FLASH}},
  year         = {{2009}},
}