Miniworkshop on ILC Infrastructure and CFS for Physics

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Mini-workshop on ILC Infrastructure and CFS for Physics & Detectors 2018/12/21 Yasuhiro Sugimoto 1

Mini-workshop on ILC Infrastructure and CFS for Physics & Detectors 2018/12/21 Yasuhiro Sugimoto 1

History • Series of mini-workshops – – – – 2015/8/31 -9/1 2016/3/15 -16 2016/9/30

History • Series of mini-workshops – – – – 2015/8/31 -9/1 2016/3/15 -16 2016/9/30 2017/5/16 2017/9/28 -29 (excursion to Kannagawa power plant) 2018/2/23 2018/11/29 today’s report 2019/2/28 • All held at KEK • Supported by E-JADE program 2

Agenda of WS in 2018 Nov. • • • News from Japan: Shinichiro Michizono

Agenda of WS in 2018 Nov. • • • News from Japan: Shinichiro Michizono CFS schedule and risks: Nobuhiro Terunuma European developments: Karsten Buesser Update on seismic isolation: Tomoyuki Sanuki Update on AHCAL earthquake simulation studies: Felix Sefkow (Fire drill) Gantry crane considerations: Yasuhiro Sugimoto Arguments for surface versus underground assembly: Karsten Buesser ILD utilities: Yasuhiro Sugimoto Update of coil design: Yasuhiro Makida 3

News from Japan 4

News from Japan 4

CFS schedule and risks • Terunuma-san explained CFS schedule in preparation phase and CFS

CFS schedule and risks • Terunuma-san explained CFS schedule in preparation phase and CFS risks discussed at SCJ committee 5

CFS schedule and risks • We need a ground water reservoir near the detector

CFS schedule and risks • We need a ground water reservoir near the detector hall 6

European developments • Karsten reported on update on LC activities in Europe – European

European developments • Karsten reported on update on LC activities in Europe – European strategy – European preparation plan for ILC – EU-funded projects • AIDA 2020: extended until 4/2020 • E-JADE under Horizon 2020: expires in this year 7

Update on seismic isolation • Sanuki-san reported on the study of seismic isolation of

Update on seismic isolation • Sanuki-san reported on the study of seismic isolation of detectors • Combination of rubber bearing + rigid sliding bearing + oil damper shows good properties 8

Update on AHCAL earthquake simulation studies • New design of AHCAL structure and its

Update on AHCAL earthquake simulation studies • New design of AHCAL structure and its properties were presented by Felix • Rigidity is improved, and the maximum displacement is reduced to <2 mm 9

Fire drill 10

Fire drill 10

Gantry crane considerations • Some of SCJ sub-committee members expressed doubt about feasibility of

Gantry crane considerations • Some of SCJ sub-committee members expressed doubt about feasibility of the >4000 t gantry crane for detector lowering • Y. S. listed up risks of >4000 t GC to be addressed 11

Gantry crane considerations 12

Gantry crane considerations 12

Arguments for surface versus underground assembly • Karsten discussed pros and cons of surface

Arguments for surface versus underground assembly • Karsten discussed pros and cons of surface assembly and underground assembly 13

Arguments for surface versus underground assembly 14

Arguments for surface versus underground assembly 14

ILD utilities • Second round survey of requirements for detector utility has been made

ILD utilities • Second round survey of requirements for detector utility has been made • Unfortunately, only a few sub-detector groups has responded so far Survey of electric power and cooling 15

ILD utilities Survey of utility space 16

ILD utilities Survey of utility space 16

Update of coil design • Design study of ILD solenoid with Hitach and Toshiba

Update of coil design • Design study of ILD solenoid with Hitach and Toshiba has been reported by Makida-san 17

Update of coil design • Maximum stress in the coil ~ 105 MPa <

Update of coil design • Maximum stress in the coil ~ 105 MPa < 150 MPa (CMS criteria) 18

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