ILC Cryogenics Introduction Akira Yamamoto CFS and Cryogenics

ILC Cryogenics Introduction Akira Yamamoto CFS and Cryogenics Joint Session ECFA-LC-2016, Santander, 1 June, 2016

Objectives • Study Report and Discussions on – Operational Temperature : 2. 0 K or 1. 8 K • It has been assumed that Q(1. 8 K) / Q(2. 0 K) =~ 2 – necessary adjustment because of Q(1. 8 k)/Q(2. 0 K) = 1. 4 (from the report, yesterday) – 4. 5 K Cold Box location either on surjace or underground, – Baby-sitter System (BSS) • Getting a too large system • Necessary further study with changing the strategy

Vertical RF Test at 1. 8 K reported by Marc. Wenskat, 31, May, ECFA-LC-2016

Agenda • 11: 00 - 11: 05 Introduction Speaker: Akira Yamamoto (KEK) • 11: 05 - 11; 40 Design study of the ILC ML Cryogenics Speaker: Takahiro Okamura (KEK) Presentation (including confidential content) attached below. • 11; 40 - 12: 00 Preliminary study of Baby ¥-System for the ILC ML Cryogenics Speaker: Tooru Takahashi (Taiyo Nippon Sanso Corp. ) Presentation is to be sent separately later. • 12: 00 - 12: 15 Large superflid helium refrigeration systems: --- An overview of Linde-Kryotechnik's projects Speaker: Lars Blum (Linde Kyotechnik AG). • 12: 15 - 12: 30 CFS engineering study for the i. LC ML Cryogenics Speaker: Masanobu Miyahara (KEK) • 12: 30 - 13: 00 Discussion

BSS (with MCB underground) T. Okamura

BSS (with MCB on surface) T. Okamura