Simulation Studies of Electron Cloud Effects for FAIR
نویسندگان
چکیده
Electron clouds (EC) can be the source of coherent instabilities and emittance growth in intense ion beams in synchrotrons. The electron are produced at the wall by secondary emission or by residual gas ionization. The cross sections for residual gas ionization by highly charged heavy ions are several orders of magnitude larger than for protons. Here we present simulation studies for the EC build-up in the drift sections and for the corresponding beam stability issues in SIS-18 and SIS-100.
منابع مشابه
تاثیر نوع ابرهای پایین جو بر میزان دقت شبیه سازی رواناب در مدل SWAT
Introduction: Patterns of spatial and temporal rainfall impact on runoff and outlet hydrograph (Cordery, 1993; James, 1994). Results of different studies have clarified that simulation by using diverse rainfall data could increase the reliance of results. These were much more sensible in which areas encounter with data scarcity (Mello et al., 2008; Bekiaris et al., 2008). Rainfall properties in...
متن کاملOn Optimal and Fair Service Allocation in Mobile Cloud Computing
This paper studies the optimal and fair service allocation for a variety of mobile applications (single or group and collaborative mobile applications) in mobile cloud computing. We exploit the observation that using tiered clouds, i.e. clouds at multiple levels (local and public) can increase the performance and scalability of mobile applications. We proposed a novel framework to model mobile ...
متن کاملSurface-related Properties as an Essential Ingredient to Electron-cloud Simulations
In recent years e-cloud related processes have been understood to play a major role in limiting the expected performances of some present and planned accelerators. Big efforts have been than devoted to the detailed comprehension of the process and more and more refined simulation codes have been produced in order to be able to predict and control such effects. Essential input parameters to such...
متن کاملTheoretical study of the effects of substituent and quadrupole moment on π-π stacking interactions with coronene
Stability of the π-π stacking interactions in the Ben||substituted-coronene and HFBen||substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben and HFBen are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four X groups, and X= NH2, CH3, OH, H, F, CF3, CN and NO). ...
متن کاملMonte Carlo Simulation of Radiation effects in protection layers of logical cell of the digital gate in the FPGA for electron and proton rays Using the FLUKA Code
In this paper, radiation effects in protection layers of logical cell of the digital gate in the FPGA for electron and proton rays was simulated Using the FLUKA Code. by using of the Monte Carlo simulation, the electron and proton transport into the logical cell of the digital gate in the FPGA will be studied. In this simulation, the maximum energy of the electrons and protons at the entrance o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011