Conveners
Topic6-1
- Katsuya Yonehara (Fermilab)
This talk will contain an overview of the measures taken to set a new beam power record (960kW) for the NuMI experiment, with focus on the target system. Target design upgrades, operational parameter changes, and target hall monitoring systems will be discussed. Additionally, challenges encountered along the way will be discussed such as a Horn 2 failure. Future plans to achieve higher beam...
The T2K target has operated successfully since the start of beam in 2010. During this time two targets have been installed and operated without failure. The second target has accumulated 3.1e21 protons on target (POT) at 510kW beam power. With the current upgrade plans the beam power will be 1.3MW by 2026 which will push the target even harder. At this beam power the heat load on the target...
Two 6-tonne beam dumps, each constituted by a graphite core encapsulated in a high-strength stainless-steel vessel, are employed to absorb the energy of the two Large Hadron Collider (LHC) intense 7 TeV/c proton beams during operation of the accelerator.
The beam dumps were initially conceived to repeatedly absorb up to around 300 MJ/dump. This has increased over the lifetime of the LHC as...
There are several project using positron sources in KEK.
KEK electron positron injector LINAC has been operating and developing positron sources for high energy collider experiments more than 30 years from Tristan to SuperKEKB.
The source for SuperKEKB is world's most intense and high efficiency positron source now in operation.
To further increase the positron production efficiency and...
In the electron-driven positron source of the ILC (International Linear Collider), positrons are obtained by injecting 3-GeV electron beam into tungsten target. The average heat load of the tungsten part is about 20 kW, and a rotating target structure is adopted to disperse this heat load. For this target, it is necessary to design both a rotating structure and vacuum performance. Also, for...
