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TXPES – A new soft X-ray spectroscopy beamline at the SESAME synchrotron
/ Ozensoy, Emrah (Bilkent U.) ; Kaya, Sarp (Koc U.) ; Aksoy, Avni (CERN ; Ankara U.) ; Gundogdu, Gencay (Unlisted, TR) ; Kantoglu, Omer (Unlisted, TR) ; Yildirimdemir, Baris (Unlisted, TR) ; Ozturk, Zeynep Reyhan (Unlisted, TR ; Unlisted, JO) ; Genisel, Mustafa Fatih (Unlisted, JO) ; Najdawi, Mohammad Al (Unlisted, JO) ; Lausi, Andrea (Unlisted, JO) et al.
The Turkish Soft X-ray Photoelectron Spectroscopy (TXPES) beamline project at the Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME) synchrotron, led by Turkish Energy Nuclear and Mineral Research Agency (TENMAK) is an important development as it marks SESAME’s first beamline fully designed, manufactured, and installed by a member country, Turkiye in 2025. TXPES will be installed on the free branch of the Helmholtz-SESAME Soft X-Ray Beamline (HESEB) and will share the same photon source and monochromator. [...]
2025 - 6 p.
- Published in : J. Phys. : Conf. Ser. 3010 (2025) 012023
Fulltext: PDF;
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Dual-scattering foil installation at CLEAR
/ Robertson, Cameron (Oxford U.) ; Aksoy, Avni (Ankara U.) ; Bateman, Joseph (Oxford U.) ; Corsini, Roberto (CERN) ; Dosanjh, Manjit (CERN) ; Farabolini, Wilfrid (CERN) ; Gerbershagen, Alexander (Groningen U.) ; Korysko, Pierre (Oxford U.) ; Latina, Andrea (CERN) ; Malyzhenkov, Alexander (CERN) et al.
The CLEAR facility at CERN allows users to receive an electron beam with energy up to 200 MeV, allowing flexibility in intensity, beam size and bunch structures. Separate from the main CERN accelerator complex, it is capable of hosting numerous experiments with rapid installations at two test stands.It would be highly desirable for many applications, but particularly those of a medical nature, to be able to provide a ‘flat’ beam at CLEAR, with a uniform intensity distribution over a significant component of its transverse dimensions. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPM073
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM073
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3.
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The CLEAR user facility: a review of the experimental methods and future plans
/ Korysko, Pierre (Oxford U. ; CERN) ; Malyzhenkov, Alexander (CERN) ; Aksoy, Avni (CERN) ; Robertson, Cameron (Oxford U.) ; Bateman, Joseph (Oxford U.) ; Sjobak, Kyrre (Oslo U.) ; Dosanjh, Manjit (Oxford U.) ; Corsini, Roberto (CERN) ; Rieker, Vilde (CERN) ; Farabolini, Wilfrid (CERN)
The CERN Linear Accelerator for Research (CLEAR) is a test facility delivering an electron beam in the 30-220 MeV energy range to a diverse user community. In 2022, several hardware and software upgrades were done to the main installation, and procedures and methods were developed to address specific user requirements, including a further extension of the beam parameter ranges. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPL141
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPL141
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4.
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Beam instrumentation for real time FLASH dosimetry: experimental studies in the CLEAR facility
/ Rieker, Vilde (CERN ; Oslo U.) ; Malyzhenkov, Alexander (CERN) ; Aksoy, Avni (Ankara U. ; CERN) ; Bateman, Joseph (Oxford U. ; CERN) ; Korysko, Pierre (Oxford U. ; CERN) ; Corsini, Roberto (CERN) ; Farabolini, Wilfrid (CERN) ; Adli, Erik (Oslo U.) ; Sjobak, Kyrre (Oslo U.) ; Wroe, Laurence (CERN) et al.
Real-time dosimetry for ultra-high dose-rates (UHDR) and Very High Energy Electrons (VHEE) is a challenge which is currently being studied using the electron beam at CERN Linear Accelerator for Research (CLEAR). These studies are motivated by the demand for reliable dosimetry for FLASH radiotherapy. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPM060
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPM060
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5.
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Experimental generation of the transversely uniform electron bunches at the CLEAR facility at CERN
/ Malyzhenkov, Alexander (CERN) ; Latina, Andrea (CERN) ; Aksoy, Avni (Ankara U.) ; Robertson, Cameron (Oxford U. ; CERN) ; Dyks, Luke (CERN) ; Burrows, Philip (Oxford U.) ; Korysko, Pierre (Oxford U. ; CERN) ; Corsini, Roberto (CERN) ; Farabolini, Wilfrid (CERN)
Electron beams with a flat-top transverse distribution are highly desired for uniform dose delivery in irradiation applications, like studies of radiation damage to electronics and radiotherapy, as well as for potential applications in the improvement of light sources. In this work, we report on the optimization of the electron photocathode injector parameters which allow such uniform distributions to be reached. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) TUPL119
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPL119
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6.
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Variable polarization self-locked streaking of electrons in time with a pair of corrugated structures
/ Malyzhenkov, Alexander (CERN) ; Latina, Andrea (CERN) ; Gilardi, Antonio (CERN) ; Aksoy, Avni (CERN) ; Korysko, Pierre (CERN ; Oxford U.) ; Corsini, Roberto (CERN) ; Farabolini, Wilfrid (CERN)
Corrugated structures have recently been utilized for the time-resolved diagnostics of electron bunches and free-electron-laser (FEL) pulses across several FEL facilities: SwissFEL at PSI and European XFEL at DESY. This approach is simple and cost-effective, based on the self-streaking of electrons with a transverse wakefield enhanced in such structures.In this work, we optimize the design of a corrugated streaker for the wide range of beam parameters of the CERN Linear Electron Accelerator for Research (CLEAR) at CERN. [...]
2024 - 4 p.
- Published in : JACoW LINAC 2024 (2024) MOPB038
Fulltext: PDF;
In : 32nd Linear Accelerator Conference (LINAC 2024), Chicago, Illinois, United States, 25 - 30 Aug 2024, pp.MOPB038
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Operational improvements and upgrades of the CLEAR user facility
/ Korysko, Pierre (Oxford U.) ; Malyzhenkov, Alexander (CERN) ; Gilardi, Antonio (CERN) ; Aksoy, Avni (CERN) ; Robertson, C (Oxford U.) ; Granados, Eduardo (CERN) ; Najmudin, I (Oxford U.) ; Wroe, Laurence (CERN) ; Martinez-Calderon, Miguel (CERN) ; Corsini, Roberto (CERN) et al.
The CERN Linear Accelerator for Research (CLEAR) at CERN is a user facility providing a 200 MeV electron beam for accelerator R&D; and irradiation studies, including medical applications. In this paper we will outline the most recent improvements in CLEAR operation and beam control and delivery, and describe the upgrades under way, giving an update of their current status. [...]
2024 - 4 p.
- Published in : JACoW LINAC 2024 (2024) THPB017
Fulltext: PDF;
In : 32nd Linear Accelerator Conference (LINAC 2024), Chicago, Illinois, United States, 25 - 30 Aug 2024, pp.THPB017
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Medical activities in CLEAR: studies towards radiotherapy using Very High Energy Electrons (VHEE) in the FLASH regime
/ Corsini, Roberto (CERN) ; Malyzhenkov, Alexander (CERN) ; Gilardi, Antonio (Naples U. ; INFN, Naples) ; Aksoy, Avni (CERN) ; Robertson, Cameron (Oxford U.) ; Bateman, Joseph (Oxford U.) ; Dosanjh, Manjit (CERN) ; Korysko, Pierre (Oxford U.) ; Rieker, Vilde (CERN) ; Farabolini, Wilfrid (CERN)
Given the present availability of high-gradient accelerator technology for compact and cost-effective electron linacs in the 100-200 MeV energy range, the interest for Very High Energy Electron (VHEE) radiotherapy (RT) for cancer treatment recently reached an all-time high. Particular significance is assumed by the Ultra-High Dose Rate (UHDR) regime where the so-called FLASH biological effect takes place, in which cancer cells are damaged while healthy tissue is largely spared. [...]
2024 - 4 p.
- Published in : JACoW LINAC 2024 (2024) THPB018
Fulltext: PDF;
In : 32nd Linear Accelerator Conference (LINAC 2024), Chicago, Illinois, United States, 25 - 30 Aug 2024, pp.THPB018
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