MYRRHA Injector at UCL

Dirk Vandeplassche

Luis Medeiros Romão

SCKCEN

MAX International Design Review Brussels, 12-13 November 2012

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 1

Introduction: origin & goal

• MYRRHA accelerator risk evaluation → list of critical elements:

– RFQ in CW mode (4-vane or 4-rod)– ...

• OECD review (MIRT, 2009) → request to SCK•CEN of showing relevant accelerator activity

• need for reliability test platform• need for innovation platform

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 2

Test platform overview

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 3

to be located at the Centre de Ressources du Cyclotron, UCL Louvain-la-Neuve, Belgium

Components

• design & construction modalities– collaborative

• MAX Collaboration• research institutes: IPNO, LPSC, IAP, CRC, Soleil• industries: Pantechnik, NTG, Cosylab, IBA, ...• research consultants (MoU): Spiral2, CERN, ...• private consultants: Linac Dynamics, ...

– strong MAX involvement: WP1 and WP2 partners• CNRS• CEA• IAP• KULAK• SCK•CEN

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 4

RFQ@UCL is also an "accelerator consortium test platform"

Components

• ECR proton source ← Pantechnik (Bayeux, France)

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 5

principal characteristics

voltage 30 kV

current 20 mA

RF 2.45 GHz, 1200 W

emittance 0.1 π.mm.mrad norm RMS for 5 mA

Components

• LEBT ← IPNO, benchmarking & error analysis by Linac Dynamics, realisation and commissioning by LPSC, controls by Cosylab

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 6

Benchmarking

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 7

Components

• RFQ ← IAP Frankfurt, benchmarking (3D fields) by KULAK and Linac Dynamics, manufacturing by NTG, tuning at IAP

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 8

Benchmarking

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 9

Components

• Diagnostics: low energy, high current– beam current

• interceptive: FC• non-interceptive: BCT

– beam position– beam profiles– emittances– longitudinal bunch properties

• likely to be based on existing items– Spiral2– Linac4

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 10

Components

• Power RF for RFQ: 176.1 MHz, 160 kW CW– TH781 tetrode based final amplifier– SS amplifier, Soleil technology

• efficiency• modularity for reliability

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 11

Components

• Controls– main target: be representative of full-size system

• distant• 3-tier• EPICS• low level with PLC's (slow) + FPGA cards in crates (fast)• will include timing

– Cosylab for architecture and realisation– test platform!

• LLRF– discussion with IPNO ongoing– looking for elegant integration

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 12

Components

• Services:– 750 kVA– profiting from CRC infrastructure– elec cabinets with remote diagnostics and controls– PLC-controlled cooling system

• deionized water loop• chilled and temperature stabilized deinonized water loop • air cooling loop

– integrated industrial procurement– test case for integration in EPICS system

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 13

Conclusion

• setup at UCL/CRC has a high potential as a test platform:– 4-rod CW RFQ evaluation– beam characterisation– long reliability runs– innovation

• target date "first beam end of 2014" is still achievable

• possible extension with CH cavities (IAP)• SC-CH?

Dirk Vandeplassche, MAX International Design Review, Brussels, 12-13 November, 2012 14