TRIUMF Five Year Plan ISAC Technology Presentations

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TRIUMF Five Year Plan ISAC Technology
Presentations

• ISAC-II Accelerator Laxdal
• ISAC Beam Development Bricault
• ISAC Targets Dombsky
• Cyclotron Baartman

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The ISAC-II Accelerator

• R.E. Laxdal
• For the ISAC-II Accelerator Task Force

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Experiments ISAC II
ISAC II - 2007
ISAC II - 2005
ISAC II - 2009
ISAC II - 2001
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Stage 0 - 2005
E4.5MeV/u A/q6
S0
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Stage 1 - 2007
E6.5MeV/u A/q7
S0
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Stage 2 - 2009
E6.5MeV/u A/q7
S0
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ISAC-II SC Linac
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Final Energy
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ISAC-II RIB Efficiency
No Stripping 75 Accelerator Transmission

• RIB efficiency through accelerator is a product
  of CSB conversion efficiency and accelerator
  transmission
• Accelerator efficiency depends on CSB charge
  state (stripping required?)
• Short lived species demand less breeding time
  hence lower Q

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ISAC II Accelerator Five Year Plan

• Completion of Accelerator to full specification
• E 6.5MeV/u for A/q7 for masses up to 150
• We require
• High beta cryomodules
• Produces full energy for limited mass range
• Low beta section plus new IH-DTL-II
• New stripping energy 400keV/u
• Produces full mass range
• Second helium refrigerator larger LN2 tank
• Expanded HEBT-II network

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ISAC-II Present Status

• Building is now occupied
• SCRF development ongoing in rented space
• Move to new lab end of Sept/03
• Charge State Booster source being installed on
  test stand
• One year of commissioning planned
• High Beta Cavity design initiated
• 20 Medium ß Cavities in fabrication
• Seven production cavities delivered
• Balance delivered in Oct. 2003
• Prototype cryomodule in fabrication and detailed
  design
• First cold test by end of 2003
• Five medium ß and two high ß solenoids ordered
• Refrigerator contract to be awarded this month
• phase I 500W

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ISAC-II Collaborations

• ISN Grenoble - Charge state booster
• INFN Legnaro - Superconducting quarter wave rf
  cavities
• INFN Milano - Wire position monitor alignment
• Argonne National Lab - Cryomodule
• J-Lab - chemical polishing

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Charge State Booster

• Increases charge state to give A/q ? 30 for
  masses to Amax150
• Installed on test stand for development starting
  in Sept. 03
• Installation in ISAC-I Nov. 04-Sept. 05

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CSB Results from ISN/TRIUMF

• T. Lamy, et al., EPAC2002

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SCRF Development

• Sept. 1999
• SCRF Workshop, Sante Fe
• Feb. 2001
• successful cold test of prototype cavity
• April 2002
• First cold test at TRIUMF
• 18 cold tests completed to date

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SCRF Test Laboratory

• 100m2 of lab space
• Test area with a 1m diameter, 2m deep hole for
  test cryostat
• Clean areas
• Dry assembly area (Class 1000)
• High pressure water rinse (Class 100)

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SCRF Cold Tests

• Tests began April 2002
• Tests support parallel developments of cavity
  performance, rf controls, cryogenic studies,
  cavity preparation, mechanical tuners

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RF Systems
Forward power required for Ea6MV/m and given
bandwidth

• RF power
• Provide useable bandwidth by overcoupling
• Require Pf 200W at cavity for f 1/220Hz at
  Ea6MV/m, ß200
• Coupling loop
• Developing LN2 cooled loop
• Goal is lt1W to LHe for Pf250W
• Mechanical tuner
• Precise (0.3Hz), fast (gt5Hz/sec) tuner with
  dynamic range of 8kHz and coarse range of 32kHz
• Tuning plate
• Spun, slotted, oil-can tuning plate to improve
  tuning range

Coupling Loop
Mechanical Tuner
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Cryomodule Alignment
WPM Calibration Stand

• the tolerance on solenoid and cavity
  misalignments are ?200 ?m and ?400 ?m
  respectively
• we are collaborating with INFN Milano on the
  development of a Wire Position Monitor for cold
  alignment with precision of 20 ?m
• Stripline monitor attached to each device driven
  by rf signal along a reference wire

WPM Calibration Data
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Accelerator Developments

• Charge State Booster
• Accelerator architecture (multicharge
  acceleration possible)
• Ancillaries for high gradient
• LN2 cooled coupling loop
• High precision mechanical tuner
• Slotted tuner plate
• Wire position monitor for cold alignment

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Medium Beta Cryomodule

• Medium beta cryomodule prototype in fabrication
• Goal is to complete cold test and rf test by end
  of 2003
• Stainless steel vacuum enclosure
• LN2 cooled copper shield
• mu metal for magnetic field suppression
• 200 ltr helium vessel

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Medium Beta Cavity
Chemical Polishing at CERN

• Prototype developed in collaboration with A.
  Facco of LNL and fabricated in E. Zanon
• Simple construction suitable for industry
  production
• Twenty cavities ordered from E. Zanon in Italy
• Four received at TRIUMF after chemical polishing
  at CERN
• Remaining cavities to be polished at JLAB

Frequency Measure at Zanon
Four Cavities at TRIUMF
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Superconducting Solenoids
Prototype Solenoid at Everson

• Focussing in the SC Linac is provided by
  superconducting solenoids (B?9T)
• End fringe fields controlled with active
  bucking coils (Bcavity?0.1T)
• Medium beta prototype received incomplete from
  Everson Electric due to bankruptcy
• Production Medium and high beta solenoids have
  been ordered from Accel
• See table for specifications

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ISAC-II Building
f1/225Hz
f1/225Hz
f1/225Hz
SCRF Clean Room
SCRF Rinse/Chemistry
Linac Vault
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ISAC Accelerator Proposal for the Five Year Plan

• Operate ISAC I II
• Provide accelerated RIBs for experiment
• Complete ISAC-II Accelerator in a staged way
• Provides smooth cash flow and manpower usage
• The plan is expandable for the future
• Compatible with an expansion to two simultaneous
  accelerated beams to experiment

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Experiments ISAC II
Potential Expansion Two Simultaneous
Accelerated Beams
High b SCRF
High-Energy Experiments ISAC I (2001)
Med b SCRF
S2
Low b SCRF
DTL1
S1
DTL2
ISAC I Low-Energy Experiments
RFQ
RFQ
A 2nd RIB Beam
CSB
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ISAC I ISOL POST-ACCELERATORS
High-Energy Experiments ISAC I (2001)
Thick/Hot Target
Beam Dump
DTL1
high-energy proton beam
S0
Heated Tube
Production Accelerator TRIUMF 500
MeV Cyclotron DRIVER
Ion Source
RFQ
A/q?30
ISAC I Low-Energy Experiments (1998)
Ion Beam
Isotope Separator
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Experiments ISAC II
ISAC II ISOL POST-ACCELERATORS
2 0 0 5
High-Energy Experiments ISAC I (2001)
Med b SCRF
Thick/Hot Target
Beam Dump
DTL1
high-energy proton beam
S0
Heated Tube
Production Accelerator TRIUMF 500
MeV Cyclotron DRIVER
Ion Source
RFQ
A/q?30
ISAC I Low-Energy Experiments (1998)
Ion Beam
Isotope Separator
CSB
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Experiments ISAC II
ISAC II ISOL POST-ACCELERATORS
High b SCRF
2 0 0 7
High-Energy Experiments ISAC I (2001)
Med b SCRF
Thick/Hot Target
Beam Dump
DTL1
high-energy proton beam
S0
Heated Tube
Production Accelerator TRIUMF 500
MeV Cyclotron DRIVER
Ion Source
RFQ
A/q?30
ISAC I Low-Energy Experiments (1998)
Ion Beam
Isotope Separator
CSB
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Experiments ISAC II
ISAC II ISOL POST-ACCELERATORS
High b SCRF
High-Energy Experiments ISAC I (2001)
Med b SCRF
S2
Thick/Hot Target
Beam Dump
Low b SCRF
2 0 1 0
DTL1
S1
DTL2
high-energy proton beam
S0
Heated Tube
Production Accelerator TRIUMF 500
MeV Cyclotron DRIVER
Ion Source
RFQ
A/q?30
ISAC I Low-Energy Experiments (1998)
Ion Beam
Isotope Separator
CSB
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ISAC-II Resource Requirements
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ISAC-II Accelerator Yearly