A new gas attenuator system for the ID17 biomedical beamline at the ESRF

Authors :: Pekka Suortti
Herwig Requardt
Alberto Bravin
Th. Brochard
Elke Bräuer-Krisch
Michel Renier
Requardt, H
Renier, M
Brochard, T
Bräuer-Krisch, E
Bravin, A
Suortti, P
Department of Physics
European Synchrotron Radiation Facility (ESRF)
Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland
Source :: 11th International Conference on Synchrotron Radiation Instrumentation (SRI), 11th International Conference on Synchrotron Radiation Instrumentation (SRI), Jul 2012, Lyon, France. 4 p., ⟨10.1088/1742-6596/425/2/022002⟩, 'Journal of Physics : Conference Series ', vol: 425, pages: 022002-1-022002-4 (2013)
Publication Year :: 2013
Publisher :: IOP Publishing, 2013.
Abstract: International audience; On the biomedical beamline ID17 at the ESRF a gas attenuator system has been installed to complement and protect the standard solid state attenuators (graphite, Al and Cu) against fatigue and damage due to the very high heat load from the beamline's wiggler source. This series of attenuators defines the flux (dose rate) and the X-ray beam spectrum for the Microbeam Radiation Therapy (MRT) research at ID17 which is currently under development towards clinical application. For this, the attenuators at MRT will be crucial elements to guarantee beam-and dose rate characteristics and the new gas attenuator will become a radiation therapy safety device. The installed gas attenuator and its test results will be presented

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