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Mitsubishi Heavy Industries Machinery Systems, LTD

2017.12.12EUV-FEL WORKSHOP

SRF activities at MHI-MS

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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1. Company organization

Mitsubishi Heavy Industries, Ltd

Power systems Industry & Infrastructure Aircraft, Defense & Space

MHI-MS

Particle Accelerators

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1. Company organization

• Main Products : Normal Conducting AcceleratorSuperconducting AcceleratorRF Components (Waveguide, Coupler, Window etc.)

• Engineering and Sales site:

Kobe Headquarters (Hyogo Pref.)

• Production Site :

Mihara Office (Hiroshima Pref.)

Tokyo

Mihara Kobe

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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2. History of SRF Products in MHI-MS

KEK-STF (start)

1989

2007

2005

2012

2013

2015

Photo courtesy of KEK Photo courtesy of KEK

KEK-TRISTAN (delivery)

KEK-CRAB (delivery)

KEK-cERL (delivery)

RIKEN-RIBF (start)

NSRRC-TPS (delivery)

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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3. Manufacturing Method of SRF cavity

●Engineering1.Basic Design of cavity from KEK2.Mechanical design of cavity3.Mecanical design of jacket and tuner4.Fabrication of cavity5.Design of assembling and alignment process of cold mass6.Design of vacuum vessel7.Fabrication and assembling of cryomodule

It took 3 years from design to fabrication of new 2 types of cryomodule.

©Rey.Hori/KEK

Main Accelerator Module

Injector Module

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3. Manufacturing Method of SRF cavity

●Forming

Nb sheet Half-cellNo wrinkles, cracks

Before press

After press

Punch

Die

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3. Manufacturing Method of SRF cavity

●Machining

Turning

Milling

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Confidential

3. Manufacturing Method of SRF cavity

●Welding

Electron Beam Welding (EBW)

Specifications

Beam Power Max. 10kWAccelerating Voltage

80kV

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Confidential

Confidential

3. Manufacturing Method of SRF cavity

●Welding

Iris

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Confidential

Confidential

3. Manufacturing Method of SRF cavity

●Welding

Equator (cut model)

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Confidential Confidential

3. Manufacturing Method of SRF cavity

●Welding

Jacket

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3. Manufacturing Method of SRF cavity

●Surface treatment

Photo courtesy of KEK

HPR@KEKEP@KEK

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3. Manufacturing Method of SRF cavity

●Surface treatment (Otherwise)

HPR@MHI-MSBCP@MHI-MS

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3. Manufacturing Method of SRF cavity

● Assembly (Class 10)

Photo courtesy of KEK

Cavity string by KEK CR in MHI-MS

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3. Manufacturing Method of SRF cavity

● Assembly (Cryomodule)

Injector Module

Main Accelerator Module

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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4. The High Pressure Gas Safety Law

●Standard

The statute book The handbook of inspection

・Designated equipment・High-pressure gas equipment・Refrigeration equipment(etc.)

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4. The High Pressure Gas Safety Law

●Inspection

Design-Calculation-Analysis-High pressure test

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4. The High Pressure Gas Safety Law

●Inspection

Material

Welding-Penetrant test-Radiographic test

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4. The High Pressure Gas Safety Law

●Inspection

Structure-Pressure test-Gas leakage test

Mechanical test-Tensile test-Bend test

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Content

1. Company organization

2. History of SRF Products in MHI-MS

3. Manufacturing Method of SRF cavity

4. The High Pressure Gas Safety Law

5. Conclusion

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5. Conclusion

●The production procedure described here is just one of the cases.

●MHI-MS tries to progress step by step to offer a high quality product.

●MHI-MS continues to support the dreams of researchers in their quest for scientific technology that will benefit mankind and society.

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