ILC Workshop on Potential Experiments (ILCX2021)

Session

W-1: Green ILC

28 Oct 2021, 13:00

Room #1 (Zoom Meeting ID: 869 3543 0074)

Presentation materials

Zoom Link (Room #1)

142. Basic policy of Green ILC activities at Kitakami ILC candidate site

Prof. Masakazu Yoshioka (Iwate/Iwate prefectural/Tohoku University)

28/10/2021, 13:00

Session W: Green ILC

Oral presentation using Zoom

Carbon neutrality by 2050 is one of the most urgent issues in the world, and the ILC aiming to start operation in 2035 should be in line with this global policy. The basic policy of Green ILC activities is not to achieve carbon neutrality within the ILC facility, but to achieve carbon neutrality in the region where the ILC is located. The key to achieving this goal is to cooperate with local...

30. A high-luminosity SC e+e- collider with energy recovery and multiple use of beams

Prof. Valery Telnov (Budker INP and Novosibirsk State Univ.)

28/10/2021, 13:30

Session W: Green ILC

Oral presentation using Zoom

A linear e+e- collider with energy recovery (ERLC) is considered. To avoid parasitic collisions inside the linac a twin LC is proposed. The acceleration gradient is 20 GeV/m, Q=3.10^10. For 2E=250 GeV, the luminosity is about 5.10^35 when working with a duty cycle 1/3 and total power P=130 MW. With the power about 250 MW, it can work in continuous mode and produce L=10^36. This is a “green”...

14. Development of hydrofluoric acid-free EP treatment of Nb cavities at KEK

Takeyoshi Goto

28/10/2021, 14:00

Session W: Green ILC

Oral presentation using Zoom

The ILC project will require ~8000 9-cell Nb cavities. In the fabrication process of Nb cavities, electrolytic polishing (EP) treatment is essential for the high SRF performance of the cavities. However, the electrolyte is a mixture of hydrofluoric acid and concentrated sulfuric acid, and its toxicity to the human body and environment is extremely high. HF-EP facilities become more complex to...