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Project X & Summary / Future Collaboration
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Transcript of Project X & Summary / Future Collaboration
Project X &
Summary / Future Collaboration
Bob KephartANL-FNAL Collaboration Meeting
June 7, 2010
Introduction
• SRF is an enabling technology envisioned for use in many new applications of interest to the Office of Science– International Linear Collider, Project X, a Muon Collider– Rare isotope accelerators, Lights Sources, ERL’s– ADS, Accelerators for national security and medicine, etc
• ANL has many years of experience with SRF related to the construction and upgrades of ATLAS– Also plans for various other SRF based projects
• FNAL has been building a powerful SRF capability in support of ILC R&D and Project X
• Collaboration on SRF via the joint processing facility was natural and very successful (Mike’s talk)
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ILC R&D
• The joint facility is now contributing data towards the ILC quest for high gradient (35 MV/M) cavities!
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Red circle = ANL/FNAL
ILC goal
4 of 14 cavities > 34 MV/M were processed at ANL
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ILC R&D
• But… Cavity yield > 35 MV/ M is still < 50% – Mechanisms limiting yield not fully understood
• Both labs and University of Chicago work closely on R&D to understand SRF materials and surfaces. – Lance Cooley described this effort.– Also a successful collaboration in that the whole is
more than the sum of the parts
• In this talk I will describe briefly FNAL’s plan for Project X with an emphasis on the SRF component
• Finish with possible areas for future collaboration.
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Project X: What is it?
• A new multi-MW Proton Source under development at Fermilab. • Enables a world-class Long Baseline Neutrino Experiment
(LBNE) via a new beam line pointed to DUSEL in Lead, SD• Enables a broad suite of rare decay experiments Several versions of this machine have been examined• All versions provided 2 MW of beam power to LBNE • Favored version (ICD-2) employs a 3 GeV 1 ma CW linac
– Provides an additional 2 MW to the high intensity program • Very flexible beam manipulation via RF separators
– 3-8 GeV = either a pulsed linac or a rapid cycling synchrotron.
Project X website: http://projectx.fnal.gov/Page 5
Project X
Stripping foil
3 GeV CW SRF Linac1 ma H- or Protons
RecyclerLinac: 1 mA x 5 ms @ 10 Hz
5 pulses per fill
Main Injector1.4 Sec cycle
LBNE (2 MW)120 GeV Fast extraction1.6 x 10 14 Protons / 1.4
sec
3 GeV High Intensity Program (2.8 MW)
Single turn transferAt 8 GeV
3 8 GeV Pulsed Linac
(or RCS)
3-8 GeV linac would be 1300 MHz pulsed retains synergy with ILC R&D but long pulse R&D needed
8 GeV fast spill (200 KW)2.2 x 10 14 Protons / 1.4 sec
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Project X Linac’s
• Design based on 3 families of 325 MHz Spoke resonators, two families of 650 MHz elliptical cavities, then 1300 MHz ILC cavities
Note: 650 MHz, b=0.9, 5-cell cavities are same physical length as 1300 MHz, b=1.0, 9-cell cavities so cryomodules are similar
SSR0 SSR1 SSR2 β=0.6 β=0.9
325 MHz, 2.5-160 MeV 650 MHz, 0.16-2 GeV
ILC
1.3 GHz2-3 GeV
MEBT
Ion source, RFQ
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Summary of PX 3 GeV CW linac
Section Freq EnergyMeV
Number of cav/magn/CM
Type of
SSR0 (bG=0.11) 325 2.5-10 26/26/ 1 Single spoke cavity, Solenoid
SSR1 (bG=0.22) 325 10-32 18 / 18/ 2 Single spoke cavity, Solenoid
SSR2 (bG=0.4) 325 32-160 44 / 24 / 4 Single spoke cavity, Solenoid
LB 650 (bG=0.61)
650 160-520 42 / 21 / 7 5cell cavity, doublet
HB 650 (bG=0.9)
650 520-2000 96 / 12 / 12
5cell cavity, doublet
ILC 1.3 1300 2000-3000
64 / 8 / 8 9-cell cavity, quad
290 Cavities, 34 cryomodulesPage 8
Summary of PX 3-8 GeV pulsed linac
Section Freq EnergyMeV
Number of cav/magn/CM
Type of
ILC 1.3 1300 3000-8000
400 / 25 / 25
9-cell cavity, quad
400 Cavities, 25 cryomodules
• Gradient ~ 25 MV/m
• 1 mA 5 ms beam pulse @ 20 Hz (Upgradeable to CW)
• Construction of Project X would substantially contribute to U.S. industrialization of SRF for ILC
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Integrated ILC/PX SRF Plan (Cryomodules)
Assemble Commission & Operate
InstallProcess & VTS
Dress & HTS
Design Procure
U.S. Fiscal Year
1.3 GHz CM1 (Type III+)
CM2 (Type III+) sw ap
CM3 (Type IV)2/3 CM
CM4 (Type IV) sw ap
CM5 (Type IV) sw ap
CM6 (Type IV+) CW Design
NML Extension Building Construction
NML Beam
CMTF Building
650 MHz Single Cell Design & Prototype
Five Cell Design & Prototype
CM650_1
325 MHzSSR0/SSR2 Design & Prototype
SSR1 Cavities in Fabrication (14)
CM325_1
Procurement (already in progress) Process & VTS/Dress/HTS
Design Procure 325 CM Parts 325 CM Ass'y
Design Order 650 Cav & CM Parts
Process & VTS/Dress/HTS
650 CM Ass'y
Design (RF & Mechanical) all varieties of Spoke Reonators
Prototype (as required)
Process & Test(as required)
Install in CMTF
Design
Move injector/install beam components
Beam Available to RF Unit test except during installation periods (contingent upon cryogenic load/capacity)
Design Construction
Design CM1.3 GHz CW
Design Order Cav & CM Parts
FY14 FY15
Operate Complete RF
Unit @ Design Parameters
Omnibus Delay
CM Ass'y Install CM CM Test
Process & VTS/Dress/HTS CM Ass'y
2008 FY09 FY10 FY11 FY12 FY13
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Final Assembly
HTSVTS
String Assembly MP9 Clean Room
VTS
1st U.S. built ILC/PX Cryomodule
Dressed Cavities (7)
Cavity tuning machine
New FNAL SRF infrastructure
VTS 2-3Civil
construction
VTS 1Tests Thermometry
SRF Progress
325 MHz spoke
resonator
FNAL S1 global Cavities @ KEK
NMLILC and PX test bed
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Progress at NML
1st Cryomodule
installed Large Vacuum Pump
Control Room He Refrigerator
CM Feed Can
Capture Cavity II @ NML
Operating at 2K Page 13
New buildings and Refrigerator (ARRA)
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Opportunities for Future Collaboration
• Continued R&D towards national goal of high gradient cavities for ILC (operation of joint EP processing facility at ANL, testing at FNAL)
• Project X R&D and eventual construction– 1300 MHz cavity processing (overlaps with ILC R&D)– 650 MHz cavity processing (new EP rig at ANL)– Spoke resonator cavity and cryomodule design and
construction (CM similar to ATLAS upgrade ?) – Processing of spoke resonators ?
• Continued SRF surface and materials R&D– Cost reduction R&D: Atomic Layer deposition,,
multi-layer cavities, hydro-formed cavities, tumbled cavities, Chemical Mechanical Polish, etc
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Summary• ANL-FNAL Collaboration on SRF has been successful• Cooperative work on 3.9 GHz cavities for DESY and spoke
resonators have yielded world class results• The joint cavity processing facility is operational and
producing cavities with world class performance• Many pieces of the new FNAL SRF infrastructure are
operational and in use, lots more is under construction• The ANL-FNAL-U of C collaboration on SRF materials and
surfaces is functional and adding to the world’s understanding of SRF surfaces– Better than any single institution could have managed on its own– Opportunities for real break thru’s (ALD, CMP, hydro-form, etc)– Lots of good ideas..limits are simply $ and people
• Many opportunities for future collaboration on Project X and other future SRF projects ( e.g. ADS !!!)
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