D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011) Overview of Project X Frond-End R&D at LBNL Derun Li Project X Collaboration Meeting October 25-27, 2011 Fermi National Accelerator Laboratory Batavia, IL

D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011) Summary of the Front-End R&D H - Ion Source (Qing Ji)H - Ion Source (Qing Ji) –Procurement of D-Pace H- Ion Source –Acceptance Test at TRIUMF –Acceptance Test at LBNL Setup and MeasurementsSetup and Measurements LEBT Studies (John Staples and Qing Ji)LEBT Studies (John Staples and Qing Ji) –Physics Design Studies Simulations and LEBT TestingSimulations and LEBT Testing –LEBT Chopper MHz CW RFQ162.5 MHz CW RFQ –Beam Dynamics Design (J. Staples) –RF Design Studies (G. Romanov) –Thermal Analysis and Engineering Design (S. Virostek) OutlookOutlook

H - Ion Source Purchased a D-Pace Ion SourcePurchased a D-Pace Ion Source –Acceptance test at TRIUMF in May 2011 –Measurement of beam current, emittance and beam stability emittance and beam stability –Emittance scan from 1 mA to 10 mA at 20, 28 and 30 kV at 20, 28 and 30 kV LBNL test setup and testLBNL test setup and test –Testing setup at LBNL –Verify acceptance testing results Currents and emittance scansCurrents and emittance scans Measured normalized rmsMeasured normalized rms emittance  0.2  mm.mrad emittance  0.2  mm.mrad D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011)

LEBT R&D Transport the beam from Ion Source and match to RFQTransport the beam from Ion Source and match to RFQ Current LEBT configuration: (two ion sources): 30 keV, 5 mA DC beam and > 90% neutralization and three solenoids (two per arm);  20-degree selecting magnet and LEBT chopper at endCurrent LEBT configuration: (two ion sources): 30 keV, 5 mA DC beam and > 90% neutralization and three solenoids (two per arm);  20-degree selecting magnet and LEBT chopper at end Physics design studyPhysics design study –LEBT and LEBT chopper –Time dependent simulations simulations Experimental studyExperimental study –Hardware engineering (LEBT copper) –Design and build a testing LEBT incrementally incrementally –LEBT testing D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011)

162.5 MHz CW RFQ D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011) Ion type: H- Beam current: 5 mA (nominal); 1 – 10 mA Transverse emittance (norm, rms): < 0.25 mm-mrad Longitudinal emittance (rms): 0.8 – 1.0 keV-nsec Input energy: 30 keV Output energy (kinetic): 2.1 MeV Duty factor: 100% (CW) Frequency: MHz

Summary of the PX RFQ Beam dynamics design complete Beam dynamics design complete – Measured beam distribution – Transport through LEBT – Matched to the RFQ RF structure studies in collaboration with Fermilab RF structure studies in collaboration with Fermilab – Mode stabilization – RFQ termination Summary of preliminary PX RFQ structure design:Summary of preliminary PX RFQ structure design: o RFQ:  4.4 meters long consists of four modules o 32 Pi-mode stabilization rods o 2 RF power couplers o 80 plug-tuners (20 per module) o 48 RF sensing probes o Preliminary termination (cut-back) design D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011)

RFQ Engineering and Fabrication Preliminary RFQ engineering design completePreliminary RFQ engineering design complete –Thermal analysis –Structure design –Fabrication process Fabrication testFabrication test

Outlook (1/2) Ion source and LEBTIon source and LEBT –LBNL will continue the ion source testing, and use the ion source to test the proposed LEBT and verify LEBT physics simulation studies, beam transport, LEBT chopper and matching to the RFQ –Detailed plan and schedule need to be developed based on available resources, support at Fermilab and LBNL –LEBT component design and fabrication: solenoids,  20 degree magnet, LEBT chopper, diagnostics D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011)

Outlook (2/2) PX RFQPX RFQ –RFQ design progressing well and will continue the engineering, thermal analysis and design of cut-backs, and error/tolerance studies at LBNL –Deliver fabrication drawings to Fermilab by FY12 –LBNL will oversee the fabrication, RFQ measurement and tuning –LBNL-Fermilab collaboration started to include engineering, fabrication, future installation and commissioning at Fermilab –Sub-systems/components needed for the RFQ RF power coupler and RF windowsRF power coupler and RF windows RF power system and PSRF power system and PS RFQ support structureRFQ support structure Water cooling systemWater cooling system Vacuum systemVacuum system Instrumentation and controlsInstrumentation and controls D. Li, Project X Collaboration Meeting, Fermilab (October 25-27, 2011)