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Diagnostic Tools for the Undulator System of the Seeded HGHG-FEL at MAX-lab

Bahrdt, Johannes; Abo-Bakr, Michael; Frentrup, Winfried; Gaupp, Andreas; Holldack, Karsten; Sheer, Michael; Hoffgen, Stefan; Kuhnehenn, Jochen; Weinand, Udo and Lindau, Filip LU , et al. (2008) 30th International Free Electron Laser Conference, 2008 In Proceedings of FEL08 p.243-246
Abstract
Within a collaboration between MAX-lab and BESSY

a one stage seeded HGHG-FEL has been set up at Maxlab.

BESSY has built the undulator system consisting of a

modulator, a radiator and an electromagnetic chicane.

BESSY has also installed three types of diagnostic tools:

optical fibres for a fast Cherenkov beam loss detection,

optical fibres for absolute dose measurements via their

radiation-induced attenuation and THz detectors for the

characterization of electron bunch properties. During first

injections with a laser driven rf-gun the Cherenkov fibres

have delivered detailed spatial information on the beam

losses inside the beamline. Over the... (More)
Within a collaboration between MAX-lab and BESSY

a one stage seeded HGHG-FEL has been set up at Maxlab.

BESSY has built the undulator system consisting of a

modulator, a radiator and an electromagnetic chicane.

BESSY has also installed three types of diagnostic tools:

optical fibres for a fast Cherenkov beam loss detection,

optical fibres for absolute dose measurements via their

radiation-induced attenuation and THz detectors for the

characterization of electron bunch properties. During first

injections with a laser driven rf-gun the Cherenkov fibres

have delivered detailed spatial information on the beam

losses inside the beamline. Over the last year the second

system, based on powermeter measurements, has detected

a total dose of 180Gy. The high sensitivity and low drift

of this system has been demonstrated. A THz detector

behind the last dipole magnet close to the beam dump

provides information on the bunch compression and the

laser induced energy modulation. We report on the

measurements performed with these diagnostics tools. (Less)
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Proceedings of FEL08
pages
243 - 246
conference name
30th International Free Electron Laser Conference, 2008
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English
LU publication?
yes
id
4738702f-99e4-444c-a18e-9f74966e5c4e (old id 1454924)
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http://accelconf.web.cern.ch/AccelConf/FEL2008/papers/tupph006.pdf
date added to LUP
2009-08-31 07:41:28
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2016-04-16 12:06:45
@misc{4738702f-99e4-444c-a18e-9f74966e5c4e,
  abstract     = {Within a collaboration between MAX-lab and BESSY<br/><br>
a one stage seeded HGHG-FEL has been set up at Maxlab.<br/><br>
BESSY has built the undulator system consisting of a<br/><br>
modulator, a radiator and an electromagnetic chicane.<br/><br>
BESSY has also installed three types of diagnostic tools:<br/><br>
optical fibres for a fast Cherenkov beam loss detection,<br/><br>
optical fibres for absolute dose measurements via their<br/><br>
radiation-induced attenuation and THz detectors for the<br/><br>
characterization of electron bunch properties. During first<br/><br>
injections with a laser driven rf-gun the Cherenkov fibres<br/><br>
have delivered detailed spatial information on the beam<br/><br>
losses inside the beamline. Over the last year the second<br/><br>
system, based on powermeter measurements, has detected<br/><br>
a total dose of 180Gy. The high sensitivity and low drift<br/><br>
of this system has been demonstrated. A THz detector<br/><br>
behind the last dipole magnet close to the beam dump<br/><br>
provides information on the bunch compression and the<br/><br>
laser induced energy modulation. We report on the<br/><br>
measurements performed with these diagnostics tools.},
  author       = {Bahrdt, Johannes and Abo-Bakr, Michael and Frentrup, Winfried and Gaupp, Andreas and Holldack, Karsten and Sheer, Michael and Hoffgen, Stefan and Kuhnehenn, Jochen and Weinand, Udo and Lindau, Filip and Thorin, Sara and Werin, Sverker},
  language     = {eng},
  pages        = {243--246},
  series       = {Proceedings of FEL08},
  title        = {Diagnostic Tools for the Undulator System of the Seeded HGHG-FEL at MAX-lab},
  year         = {2008},
}