ihep cryomodule status

IHEP Cryomodule Status

Jiyuan Zhai

On behalf of the IHEP ILC SRF R&D Team

AWLC14, May 14, Fermilab

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Outline

• IHEP ILC-TC1 Cryomodule Assembly

• Horizontal Test Facilities

• Cavity Fabrication

IHEP ILC-TC1 Cryomodule

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• Short cryomodule with one low-loss large grain 9-cell cavity (VT 20MV/m, Q0=1.4E10)

• Cylindrical magnetic shield inside helium vessel

• STF type input coupler and tuner• Module assembly to complete in

July 2014, horizontal test in 2015

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Cryomodule Assembly

Assembly Hall in IHEP Building #2

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Cavity Clean Room Assembly

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Cavity Clean Room Assembly

Careful Clean Room Assembly Operations (PFFA)

Beam Tube Assembly Gate Valve Assembly Cavity Assembly Prep

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Cavity Clean Room Assembly

• Coupler Mounting Test

• Slow Pumping and N2 Purging

• Middle-position slide jack tuner with four guiding rods

• Helium vessel bellow and tuner flanges sagging when loose the support fixtures; will be restored when the tuner is installed.

2mm

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Outline

• IHEP ILC-TC1 Cryomodule Assembly

• Horizontal Test Facilities

• Cavity Fabrication

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Horizontal Test Facility Layout

Power SourceDeliver in end 2014

Cryogenic PlantIn commissioning

TunnelHorizontal test & beam test

Vertical test DewarDeliver in September

IHEP Building #1

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Cryogenic System in Commissioning

Cold box and compressor: refrigeration 1000W@4.5K, liquefication: 284 L/h

2K pumps: 8000 m3/h @ 3100 Pa

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1.3 GHz Klystron and Modulator Ordered• 1.3 GHz 5 MW Klystron and Marx Modulator will deliver in end 2014

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Outline

• IHEP ILC-TC1 Cryomodule Assembly

• Horizontal Test Facilities

• Cavity Fabrication

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TESLA-like Cavity Fabrication

• End groups EBW ongoing

• Cavity EBW to be done in July

• Process and test at KEK

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TESLA Cavity Production

• HERT Company• FG TESLA 9-cell cavity• Pressing and EBW test

and optimization• One prototype in 2014

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Summary

• IHEP ILC test cryomodule assembly is ongoing and will be finished in July 2014.

• Hardware preparation, environment and component cleanliness, vacuum, alignment and assembly procedures are studied and conducted carefully for cavity clean room assembly.

• Cryogenic system and power source will be ready in end 2014 for the module horizontal test.

• Prototype production of a fine grain TESLA-like 9-cell cavity and a fine grain TESLA 9-cell cavity will be done in mid and end 2014 respectively.

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Thank you!