Conveners
Session 6: LIU
- Malika Meddahi
- Giovanni Rumolo
In 2015, extended beam studies, a general project Cost and Schedule Review and several dedicated LIU project reviews contributed to define a number of important aspects of the final LIU roadmap. This brief presentation will describe the current LIU baseline and the performance reach of the main upgrades.
Preliminary results of the 2015 latest studies to understand limitations in the PS injectors chain will be given, as well as the prospective for the upgrades being installed in YETS 2015-16, and the plans for studies to be performed in 2016.
In this paper we report the status of the LINAC4 beam commissioning and detail the strategy for the remaining commissioning steps. The H- source present performance, the intensity achieved and its impact on the LIU parameters will be discussed. The overall schedule with emphasis on the beam availability for the half-sector test will be presented.
We will give an overview of the most important LIU upgrade items for both Booster and PS machines and report on their status and the plans until completion of the project. The main achievements in 2015 will be highlighted and the next steps in 2016 outlined. On the beam physics side, we will report on the progress with the production of the 25ns LHC beam in both machines...
In 2015 several important decisions were taken to define the baseline upgrade path of the SPS for LIU, and solid technical progress was made in the different upgrade work-packages. In this presentation the progress of the upgrade activities is described, together with the accompanying theoretical and simulation advances where relevant. The reviews and decisions on the...
Major upgrades of the RF systems in the injector chain are required to reach the high beam intensity and quality for the High-Luminosity LHC. Finemet technology has been retained as the baseline for the future RF systems of the PSB. Since LS1 the PSB is operated with a fully digital beam control system, which allowed gaining important operational experience especially in...
The status of the transverse feedback systems of the LHC injector chain - LEIR, PSB, PS and SPS - is reviewed. This includes the LIU upgrades already implemented and commissioned as well as the planned outstanding LIU work. The review includes capabilities of damping electron cloud instabilities as well as other limitations, and the role the high bandwidth feedback...
