Transcript MuCool Status and Plans - International Muon Ionization

Welcome
MTA RF Workshop
A. Bross
MTA RF WS
August 22, 2007
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Particulars
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The morning session is here in 1 East
The afternoon session is in the Black Hole WH 2NW
No registration
Coffee Breaks – Cafeteria
Dinner: @ 7:45 at
La Sorrella Di Francesca
18W Jefferson Ave
Naperville, IL
A. Bross
MTA RF WS
August 22, 2007
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MuCool Test Area
A. Bross
MTA RF WS
August 22, 2007
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MTA Hall
A. Bross
MTA RF WS
August 22, 2007
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Beam Line Installation has Started
 MUCH activity at the moment
 Unfortunately, RF is locked out until the shielding wall
between the MTA and Linac is back in place
A. Bross
MTA RF WS
August 22, 2007
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MTA beam line layout
“Green” quads
Shielding blocks
SQA’s
Cooling ring dipoles
Pulsed magnets
MW’s
A. Bross
MTA RF WS
August 22, 2007
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Extraction point to MTA line
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Extraction begins upstream and ends downstream of the chopper
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It is accomplished by 2 pulsed “C”-magnets power from a single power
supply.
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One 3° magnet upstream and one 7.5° magnet downstream of electrostatic
chopper
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Keeps the H- magnetic stripping losses under reasonable levels
“C”-magnets
gate valve
10”
10.5°
Booster & dump beam
A. Bross
MTA RF WS
August 22, 2007
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MTA beam line installation
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Goal
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FNAL shutdown
 Start August 6th
 Duration 10 weeks
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 Feb 2007
 Install the MTA beam line components, or
as much as possible, during 2007
shutdown.
Start from scratch…or almost from scratch
 Finalize the beam line design and finish drawings
 Build stands
 Refurbish magnets
 Utilities installation
 Expand electrical distribution for MTA
 Install cable trays
 Install LCW system for cooling
requirements
MTA Beam line Status
Fermilab AAC Meeting
F.G. Garcia
 Install
instrumentation,
magnets,
beam
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Organization Chart
A. Bross
MTA RF WS
August 22, 2007
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10 TQTB (install 8 + 2 spares)
Hydraulic tests look
good
(also known as 200MeV Quads,
Green Quads, 400MeV Quads…)
Current Status
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Surveyors referencing
the magnets
A. Bross
Remnant field measurements complete
Electrical upgrade complete
The reference survey is complete
The magnet stands are ready and stored at
MTA stub area
TQTB quadrupoles are
ready for installation
MTA RF WS
August 22, 2007
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Shielding under hatch area
sufficient to
It has been installed primary to
protect personnel inside the
MTA enclosure from
Linac beam
air
soil
26’-0”
10’-6”
The existing shielding underneath the hatch is not
run beam to the MTA enclosure
13’-6”
21’-0”
concrete
concrete
A. Bross
MTA RF WS
August 22, 2007
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Operational limitations
Source: Fermilab Radiological Control Manual (FCRM)
http://wwwesh.fnal.gov/FRCM/Ch02/Ch02.html, 2005
A. Bross
MTA RF WS
August 22, 2007
Courtesy: C. Moore
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Shielding under hatch area (cont.)
 Design has been developed
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Conventional blocks
Space for beam stop is allocated
All blocks are on site
 Estimate:
~10 days
T&M contract
Start: August 14th
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Courtesy: T. Kobilarcik
A. Bross
MTA RF WS
August 22, 2007
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 Start of shielding work was delayed due to an onsite strike
and the riggers would not cross.
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Worked out last Thursday
 Shielding work should be complete by 8/31 and we should be
able to start RF tests again right after Labor Day
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At this point we are decoupled from Beam Line Installation work
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Except for parts that go in the MTA
A. Bross
MTA RF WS
August 22, 2007
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Overall Schedule
A. Bross
MTA RF WS
August 22, 2007
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The Vacuum RF Near-Term Plan
 Continue Button tests with Bare and TiN coated buttons
 We have buttons made with the following metals
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Tantalum
Tungsten
Molybdenum-zirconium alloy
Niobium
Niobium-titanium alloy
Stainless steel
 Continue conditioning 201 with Be windows (if power ever
becomes available) without B field (after re-tuning).
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Then do B field scan
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Can go up to few hundred gauss at present
– Need new pumping system to go higher
• SHOULD ORDER ASAP
– And eventually Coupling Coil
A. Bross
MTA RF WS
August 22, 2007
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ASAP
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MTA RF WS
August 22, 2007
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Cryocooers
Thermal shields
and intercepts
Power leads
Vacuum
He condenser
vessel
Cold mass
supports
He cooling
pipes
Coil assembly
Pro/E drawing by C.S.Liu
A. Bross
MTA RF WS
August 22, 2007
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