IHEP SRF Lab Upgrade & Facilities

Jianping Dai

on behalf ofSRF lab upgrade and facilities group

2nd Workshop of the IHEP 1.3GHz SRF R&D Project, December 1-3, 2009, IHEP, Beijing

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 2

IHEP SRF Lab (~230m2), constructed at 2004

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 3

Facilities layout of IHEP SRF lab

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 4

Class 10000: 13m2, equipped with the evacuating and leakage detecting system

Class 10+Class 100: 20m2

The clean room was upgrade in this May: filter change( 0.12µm, 99.999%)and ground modified

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 5

Resistivity: >18MOhm-cmTOC: <14ppb (10-9)Water flow: 8-12L/minStore 1200L pure water

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 6

HPR for single cell Cavity

High pressure pump, 01.um filter, nozzle, relief valve , HPR stand

•Maximum travel distance of cavity is 1.1m, with a speed of 4-16cm/m•Rotating speed: 2-10cycle/m•Water pressure :0-100kgf/cm2

•Rinsing water flow: 12L/m @80kgf/cm2

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 7

A HPR device had been designed, now it’s just under parts fabrication.

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 8

Cavity mount stand

3m×4.4m×5.2m:Height:>4m

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 9

Control room

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 10

Old CP facility

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 11

Over flow Tank

Recirculation Pump

WaterChiller

Main Acid Valve

AcidTank

Main Acid Pump

AcidSupply Tank

Acid Dump Tank

Acid Dump Valve

Acid Waste Barrel

Acid Dump Pump

Waste Gas Treatment

Dilute WasteBarrel

UPWTank

UPWPump

Ultra Pure Water (UPW)Barrel

UPWValve

Dilute Waste Valve

Principle of IHEP BCP facility

Design parameters of BCP

• Cool the acid to 12oC• ~1 minute to fill or discharge the cavity• Remove ~2kW of heat during the process• Acid flow: 0-2T/h

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 12

配酸槽 高位水槽高位酸槽 酸雾塔纯水储槽

冷水机

3#风机液位控制槽

废酸储槽

泵泵

泵泵

排酸 排酸冷却器

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 13

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 14

Mechanical pump: 150L/s,Roots pump: 1200L/s

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 15

Rotate speed: 0~100Turn/m

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 16

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 17

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 18

97 %

50 %

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 19

Experience of SRF Lab

• Vertical test at IHEP SRF Lab.– 1.3GHz/β=0.45 SC：

SC-01 1 time

SC-02 3 times

SC-03 2 times

– 2-cell Tesla cavity 1time

• Surface treatment of the above cavities

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 20

1st: CP(100m)+HPR(2hr.)+Baking(120 48hr.) @IHEP℃ 2nd: CP(50m)+HPR(2hr.)+Baking(120 48hr.) @IHEP℃ 3rd: CP(20m)+HPR(3hr.)+Baking(120 48hr.) @IHEP℃ 4th: HPR @KEK 5th: warm up and fast cooling down @KEK

Test of SC-02 cavity

2nd Workshop of 1.3GHz SRF R&D Project, Dec. 1~3, Beijing jpdai@ihep.ac.cn 21

Thanks for your attention!