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Öğe Conceptual design of an X-FEL facility using CLIC X-band accelerating structure(Joint Accelerator Conferences Website (JACoW), 2014) Aksoy A.; Yavaş O.; Schulte D.; Latina A.; Wuensch W.; Syratchev I.; Boland M.Within last decade a linear accelerating structure with an average loaded gradient of 100 MV/m at 12 GHz has been demonstrated in the CLIC study. Recently, it has been proposed to use the CLIC structure to drive an FEL linac. In contrast to CLIC the linac would be powered by klystrons not by a drive beam. The main advantage of this proposal is achieving the required energies in a very short distance, thus the facility would be rather compact. In this study, we present the conceptual design parameters of a facility which could generate laser photon pulses covering the range of 1-75 Angstrom. Shorter wavelengths could also be reached with slightly increasing the energy. Copyright © 2014 CC-BY-3.0 and by the respective authors.Öğe Design optimization of an X-band based FEL(Joint Accelerator Conferences Website (JACoW), 2016) Aksoy A.; Latina A.; Pfingstner J.; Schulte D.; Nergiz Z.A design effort for a new generation of compact, costeffective, power-efficient FEL facilities, based on X-band technology, has been launched. High-frequency X-band acceleration implies strong wakefields, tight alignment and mechanical tolerances, and challenging stability issues. In this paper a design is proposed for the injector and the linacs, including the two bunch compressors. RF gun and injector simulations have been performed, successfully meeting the stringent requirements in terms of minimum projected emittance, sliced emittance and minimum bunch length. In the design of the linac and bunch compressors wakefield effects and misalignment have been taken into account. Start-toend tracking simulations through the optimized lattice are presented and discussed. Copyright © 2016 CC-BY-3.0 and by the respective authors.Öğe Ecm = 500 GeV CLIC ? ? collider based on its drive beam FEL(2012) Aksakal H.; Nergiz Z.; Zimmermann F.; Schulte D.; Mikhailichenko A.; Çiftç A.K.CLIC is a linear e +e - collider project which employs a drive beam to accelerate the main beam. Various portions of the drive beam provide RF power for corresponding units of the main linac through energy extracting RF structures. CLIC can operate over a wide range of center-of-mass energies, from 150 GeV to 3 TeV. In addition to e +e - collider, ?? and ?e colliders based on CLIC can be realized. In order to generate high energy photons, a Free electron laser (FEL) produced from the CLIC drive beam linac can be used. In this paper we show that the CLIC drive beam parameters satisfy the requirements of the FEL mode of operation. © TÜBI·TAK.Öğe FEL proposal based on CLIC X-band structure(Joint Accelerator Conferences Website (JACoW), 2014) Aksoy A.; Yavas Ö.; Schulte D.; Latina A.; Wuensch W.; Grudiev A.; Boland M.J.A linear accelerating structure with an average loaded gradient of 100 MV/m at X-Band frequencies has been demonstrated in the CLIC study. Recently, it has been proposed to use this structure to drive an FEL linac. In contrast to CLIC the linac would be powered by klystrons not by an RF source created by a drive beam. The main advantage of this proposal is achieving the required energies in a very short distance, thus the facility would be rather compact. In this study, we present the structure choice and conceptual design parameters of a facility which could generate laser photon pulses below Angstrom. Shorter wavelengths can also be reached with slightly increasing the energy.Öğe Luminosity upgrade of CLIC-LHC EP/?P collider(2007) Aksakal H.; Çiftçi A.K.; Nergiz Z.; Schulte D.; Zimmermann F.An energy frontier or QCD Explorer ?p and collider can be realized by colliding high-energy photons beam, at either 75 GeV or 1.5 TeV, with protons or ions stored in the LHC. In this study we discuss a performance optimization of this type of collider by tailoring the parameters of both CLIC and LHC. An estimate of the ultimately achievable luminosity is given. ©2007 IEEE.
