Browsing by Author "Doebert, S."

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Citation - WoS: 5
Citation - Scopus: 4
Design and Optimisation of the Positron Production Chain for Clic From the Target To the Damping Ring
(Elsevier Science Bv, 2017) Bayar, C.; Ciftci, A. K.; Doebert, S.; Latina, A.
The CLIC Positron source has been designed to produce non-polarised positron beams using a hybrid target composed of a crystal followed by an amorphous target. After production, positrons are captured and accelerated to 200 MeV in the pre-injector linac and subsequently accelerated further up to 2.86 GeV in the injector linac. At this point they enter the pre-damping ring and afterwards the main damping ring to obtain the necessary beam quality for a linear collider. In this study, we have designed and optimised the beam transport and acceleration from the target to the pre-damping ring which has a limiting transverse and longitudinal acceptance. The goal of the study was to maximise the positron yield accepted by the pre-damping ring. (C) 2017 The Authors. Published by Elsevier B.V.
Tracking Simulations and Optimization of the Clic Injector Linac
(Amer Inst Physics, 2018) Bayar, C.; Doebert, S.; Latina, A.; Ciftci, A. K.
The CLIC positron source has been designed to produce non-polarized positrons for the first stage of CLIC at 380 GeV. In the CLIC positron source, the injector linac is supposed to accelerate positron beams and electron beams simultaneously from 200 MeV after the pre-injectors up to the damping ring energy of 2.86 GeV. The optics design of the injector linac has been done for the positrons since the emittance of the positron beam is much larger compared to the electron beam. This study presents new particle tracking simulations and an optimization of the CLIC injector linac for the positrons. In addition, beam offset and quadrupole misalignment errors have been investigated in the CLIC injector linac.