Session 5 - LIU
- Malika Meddahi
- Giovanni Rumolo
Session 5 [Chairs: Malika Meddahi, Giovanni Rumolo)
9/24/14, 9:00 AM
Linac4 has been commissioned with a temporary source until the energy of 12 MeV. The dynamics in the LEBT, in the RFQ and in the chopper line have been verified, as well as the acceleration to 12 MeV with the first DTL tank. Future plans foresee stages of commissioning at the energy of 50, 100 and finally 160 MeV interlaced with periods of installation and followed by a year-long reliability...
9/24/14, 9:40 AM
This talk will focus on the injector improvements and upgrades foreseen within the LIU project as well as the expected benefits in terms of proton beam characteristics resulting from their implementation. The roadmap of the main upgrades will be illustrated, with special emphasis on the machine studies and milestones during Run 2 that will have an impact on it. In this framework, a strategy to...
9/24/14, 10:50 AM
New techniques for the production of 25 ns bunch trains in the LHC injector chain have been successfully tested in the last year of the LHC run 1. These new techniques can produce bunches with unprecedented brightness for similar bunch intensities like in the nominal scheme, but significantly reduced emittances. The material damage potential depends however roughly on the ratio intensity to...
9/24/14, 11:20 AM
The LHC Injectors Upgrade (LIU) project aims at extending the brightness and intensity reach of the injector complex. To go beyond the SPS RF and longitudinal limitations remaining after the implementation of all the LIU upgrades, further optimisation is proposed on the following aspects: 1) Alternative SPS optics configurations with intermediate transition energy between Q20 and Q26. Although...
9/24/14, 11:40 AM
At the end of the LHC run 2 in 2012 the 25 ns beam with an intensity of 1.3e11 p/b was successfully accelerated in the SPS. Further significant increase of bunch intensity in the SPS requires that all LIU baseline upgrades are in place (for 200 MHz and 800 MHz RF systems and e-‐cloud mitigation), but even then the bunch intensity could be limited below the HL-‐LHC value of 2.5E11 by...
Michael Andreas Bodendorfer
9/24/14, 12:05 PM
We will review the performance of the ion injector chain of the LHC during LR1, and the baseline of the upgrades, which are planned in order to reach the performance required after LS2. After overviewing the open issues and a tentative list of planned machine developments, we present the beam characteristics expected during LR2 and beyond.