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Proton Driver Project Development, Tactics & Strategy. G. W. Foster Fermilab User’s Meeting June 3, 2004. This is supposed to be a non-technical talk. … I’ll do my best…. Some Developments. 1 st Round of PD Design Studies Completed PD Recommendation by FLRPC

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proton driver project development tactics strategy

Proton DriverProject Development,Tactics & Strategy

G. W. Foster

Fermilab User’s Meeting

June 3, 2004

G.W.Foster - Proton Driver

this is supposed to be a non technical talk
This is supposed to be a non-technical talk

… I’ll do my best….

G.W.Foster - Proton Driver

some developments
Some Developments
  • 1st Round of PD Design Studies Completed
  • PD Recommendation by FLRPC
  • New Design Iteration Started
    • Goal: CD-0 Documentation by End of ’04
    • Both Synchrotron and SCRF Linac (emphasized)
  • US SCRF Collaboration enthusiasm for PD
  • ITRP Decision Pending

G.W.Foster - Proton Driver

proton driver synchrotron linac
Proton Driver Synchrotron & Linac
  • SYNCHROTRON
    • Sited West of the existing booster
    • Re-uses existing linac enclosure
  • 8 GeV LINAC
    • Baseline Site injects at MI-30 straight section
    • Others possible

G.W.Foster - Proton Driver

q what is the significance of this number
Q: WHAT IS THE SIGNIFICANCE OF THIS NUMBER ?

A: this is the number of vacuum tubes required to accelerate beams to 8 GeV in Fermilab’s current Proton Source.

451

G.W.Foster - Proton Driver

8 gev superconducting linac
8 GeV Superconducting Linac
  • New idea incorporating concepts from both the Spallation Neutron Source (SNS) and TESLA.
    • Copy SNS Linac design up to 1.3 GeV
    • Use “TESLA” Cryomodules from 1.3 -8 GeV
    • H- Injection at 8 GeV in Main Injector

==> “Super-Beams” in Fermilab Main Injector:

    • 2 MW Beam power at BOTH 8 GeV and 120 GeV
    • Small emittances ==> Small losses in Main Injector
    • Minimum (1.5 sec) cycle time
    • MI Beam Power Independent of Beam Energy

==> (flexible neutrino program)

G.W.Foster - Proton Driver

slide7
8 GeV Superconducting LinacWith X-Ray FEL, 8 GeV Neutrino & Spallation Sources, LC and Neutrino Factory

Neutrino

“Super-

Beams”

SY-120

Fixed-Target

Damping Rings

for TESLA @ FNAL

With 8 GeV e+ Preacc.

NUMI

Off-

Axis

X-RAY FEL LAB

8 GeV

neutrino

8 GeV Linac

~ 700m Active Length

1% LC Systems Test

Main

Injector

@2 MW

Bunching

Ring

Target and Muon Cooling Channel

Recirculating

Linac for Neutrino Factory

Neutrino Target

& Long-Pulse

Spallation Source

Short Baseline Detector Array

VLHC at Fermilab

Neutrinos

to “Homestake”

Anti-

Proton

G.W.Foster - Proton Driver

8 gev sc linac proton driver
8 GeV SC Linac Proton Driver
  • A Bridge Program to the Linear Collider
  • Near Term Physics Program (neutrinos+)
  • Multiple HEP Destinations & Off-Ramps
  • A seed project for Industrial Participation

50 cryomodules, 12 RF stations, ~1.5% of LC

G.W.Foster - Proton Driver

new proton driver charge letter
New Proton Driver Charge Letter

G.W.Foster - Proton Driver

proton driver charge machine
Proton Driver Charge (machine)
  • Goal: CD-0 Documentation by End of ’04
  • Both Synchrotron and SCRF Linac (emphasized)
    • Common Performance Specs and Cost Basis
  • External Review of Accelerator Physics
  • Investigation of Outside Collaboration

G.W.Foster - Proton Driver

pd work in progress
PD Work in Progress …
  • Weekly meetings in specific technical areas (four)
  • Visits from experts
  • Prototype key components
  • Develop Collaborations

G.W.Foster - Proton Driver

linac technical strategy
Linac Technical Strategy
  • TESLA compatible frequency chosen
    • Prototypes & vendors exist for 7/8 of linac
    • Complete overlap with LC test facility
  • Staging Stand-Alone Linac Beam Power
    • Cut Klystron count from 42  12
    • Preserve 2 MW beam power in MI
  • Adopt “Pulsed RIA” SCRF front end

G.W.Foster - Proton Driver

cost driver klystrons per gev
Cost Driver: Klystrons per GeV

G.W.Foster - Proton Driver

collaboration
COLLABORATION
  • Will be key to the success of
    • the SCRF Proton Driver
    • the LC test facility

… and can speed up both if they are the same project.

G.W.Foster - Proton Driver

slide17

JHF 325 MHz RFQ and Klystrons for TESLA-Compatible* Front End

JHF 325 MHz RF Quad

JHF 325 MHz

3 MW Klystron

* TESLA frequency = 1300 MHz

= 4*325 MHz

G.W.Foster - Proton Driver

lanl apt
LANL (APT)

ANL (RIA)

G.W.Foster - Proton Driver

end to end beam physics of tesla compatible linac p ostroumov anl
End-to-End Beam Physicsof TESLA-Compatible Linac(P. Ostroumov, ANL)

G.W.Foster - Proton Driver

8 gev superconducting linac technical subsystem designs exist and work
8 GeV Superconducting LinacTECHNICAL SUBSYSTEM DESIGNS EXIST AND WORK

FNAL/TTF

Modulators

SNS Cavites (JLAB)

“TTF Style” Cryomodules

Civil

Const.

Based on

FMI

TESLA RF

Distribution

* w/ phase shifters

G.W.Foster - Proton Driver

advanced rf distribution coaxial phase shifter option

Advanced RF Distribution(Coaxial Phase Shifter Option)

RF FROM

KLYSTRON

DIRECTIONAL

COUPLER

(POWER SPLIT)

CIRCULATOR

AND LOAD

COAXIAL

FERRITE STUB

TUNER AND

WAVEGUIDE

TRANSITION

/

E

MAGIC TEE

AND CAVITY RF

POWER COUPLER

YET!

G.W.Foster - Proton Driver

the next step
THE NEXT STEP
  • There is a 100% overlap in the plans for the next step of the SCRF Proton Driver and the SCRF Linear Collider:

Set up 1 GeV of TESLA linac

    • At Fermilab
    • With as many US-built components as possible

G.W.Foster - Proton Driver

fermilab s assets
Fermilab’s Assets

M-East

And M-P

Beamlines

MESON AREA CRYOGENICS

  • Cryogenics
  • Beamlines
  • Near-term project: SCRF Proton Driver

MESON CRYO PLANT

TRANSFER

LINES

Immediate Support for (1) TESLA RF Station and (4) TESLA Cryomodules

G.W.Foster - Proton Driver

recognize the handwriting
Recognize the Handwriting?

cryomodules

time

Helen Edwards

G.W.Foster - Proton Driver

final questions
Final Questions
  • Is the LC / PD decision point 2008?
  • Impact of LC Technology decision
    • on collaboration
    • on US HEP
  • Funding Profile & Schedule depending on whether BTeV does / does not survive reviews…

G.W.Foster - Proton Driver