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München 2019 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 1: Particle Sources and Radiofrequency 1

AKBP 1.4: Talk

Monday, March 18, 2019, 14:45–15:00, HS 8

Updates on the RF Design of the 750 MHz PIXE RFQ — •Hermann Winrich Pommerenke1,2, Vittorio Bencini1, Amy Bilton1, Lorenzo Giuntini3, Alexej Grudiev1, Alessandra Lombardi1, Serge Mathot1, Francesco Taccetti3, Marc Timmins1, Eric Montesinos1, Ursula van Rienen2, and Maurizio Vretenar11CERN, Geneva, Switzerland — 2University of Rostock, Germany — 3INFN, Florence, Italy

Protons with an energy of few MeV are commonly used for Ion Beam Analysis (IBA) of materials, in particular with the Proton Induced X-ray Emission technique (PIXE). The technique covers the non-destructive, quantitative analysis of elements with very good efficiency and ppm range detection limits. It it is widely used in different fields, in particular for the diagnosis of cultural heritage artwork.

As transporting artworks to the IBA facilities is often unacceptable, the PIXE RFQ, a one-meter long radio frequency quadrupole operating at 750 MHz, has been developed as a transportable proton accelerator within the collaborative MACHINA project between CERN and INFN. The PIXE RFQ is constructed at CERN based on the experience from the high-frequency RFQ for medical applications. The construction will be completed in the first quarter of 2019 and first measurements on artwork are expected in 2020.

This talk gives an update on the RF design of the PIXE RFQ accelerator, including simulation results regarding cavity geometry, coupler, thermal behaviour, and beam dynamics studies.

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