RF Cavity / Coupling Coil Module

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Presentation transcript:

RF Cavity / Coupling Coil Module Project Plan and Progress March 18, 2008 Steve Virostek Lawrence Berkeley National Lab

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Summary A bottoms-up, WBS based plan (including a cost estimate and schedule) has been developed for completion of two RFCC modules A task list of ~300 items includes: engineering, design, reviews, procurement, fabrication, assembly, testing and shipping Current plan calls for funding and/or effort from the following institutions: Lawrence Berkeley Lab, ICST/HIT at Harbin, University of Mississippi, UC Riverside and Oxford Physics MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Funding and Schedule The early finish schedule and no contingency cost estimate results in delivery of the completed RFCC modules near the end of FY09 Currently projected funding is sufficient to complete the project on the two year schedule Contingency and float can be provided by the use of FY10 funds and by stretching the schedule into FY10, if necessary RF cavity design and fab is on the critical path MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Preliminary Plan The detailed design of the cavities and associated subcomponents will be based on the prototype cavity design developed at LBNL and J-Lab The MuCool and MICE Coupling Coils have been designed and will be fabricated & tested at ICST LBNL engineering will coordinate the fabrication of the cavities using a combination of in-house shops, collaborator shops (U. Miss.) and outside resources (spinning, e-beam welding, etc.) MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Preliminary Plan (cont’d) Subcomponent procurements (Be windows, RF windows and couplers, vacuum system, cryocoolers, power supplies) will be specified by LBNL & purchased w/funds from various sources Coupling coils, cavities and other components will likely be integrated into RFCC modules at LBNL using in-house technical resources Module testing will take place at LBNL prior to shipping to the MICE hall at RAL MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Preliminary RFCC Module Schedule MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Engineering, Design & Technical Resources An additional FTE engineer (Alan DeMello) at LBNL has been assigned to work on the module along with M. Green & S. Virostek ICST has the engineering and technical resources needed to complete the design and fabrication of the coupling coils (with some LBNL oversight) Technical resources, machine shops & assembly facilities are currently available at LBNL MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Funding Plan Projected available funding through LBNL (FY07-FY09), U. Miss. and UC Riverside is sufficient to cover the estimated project costs ICST is funding the manpower & a portion of the raw material costs for completion of the coupling coils (bulk of material is coming from the US) The current cost estimates do not contain contingency - additional project $ to be available in FY10 should provide adequate contingency MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Updated RFCC Module 3D CAD Model Cavity suspension Automatic tuners 201 MHz RF cavity MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Cavity End View with Tuners and Struts Six tuners per cavity provide individual frequency adjustment Tuning automatically achieved through a feedback loop Six struts per cavity provide a kinematic mounting system Struts fix cavity position without over-constraint MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Cavity Tuner Design Features Tuners are spaced evenly every 60º around cavity Layout is offset by 15º from vertical to avoid conflict with cavity ports Tuners touch cavity and apply loads only at the stiffener rings Tuners operate in “push” mode only (i.e. squeezing) MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Four Cavity Layout in Vacuum Vessel Each cavity contains a dedicated set of suspension struts No contact between pairs of close packed cavities Struts designed to axially fix outside end of cavity pairs Tuning deflections increase cavity gap MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Coupling Coil Update An MOU between LBNL and ICST/HIT at Harbin for the Coupling Coil Project is in place The MOU includes an addendum with milestones and funding information as well as a technical agreement containing the magnet specifications 260 km of superconductor ordered (137 km rec’d) Additional procurements are under way – first shipment of materials has been received at ICST ICST has completed the magnet final design and is ready to wind a pair of test coils MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Coupling Coil Design MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Coupling Coil Components Vacuum chamber Cryocoolers He condenser Cooling circuit He collection box Cover plate Al coil mandrel Coil Heat shields Cold mass supports LHe distribution container Al banding G-10 insulation MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Coupling Coil Analyses MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Coil Winding Tooling MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008

Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008 Summary A detailed plan has been developed for the design and fabrication of two RFCC modules Both the funding and manpower required to complete the effort are available (new engineer on the project @ LBNL) ICST has completed the Coupling Coil design and is prepared to start winding a pair of test coils Material orders and shipment to ICST of Coupling Coil components are ongoing Design & analysis of the MICE 201 MHz cavity is under way A revised beryllium window design has been developed, and quotes have been obtained from the vendor MICE RF and Coupling Coil Module – Summary of the Design and Fabrication Plan Steve Virostek - Lawrence Berkeley National Lab - March 18, 2008