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PIP Update
July 11 2012
Agenda
• Summary Update– Budget/RLS– Current Activities– Upcoming Activities/ Changes
• Update Slides
• High-Power Ferrite Testing Dennis Barak • Booster Cogging Kiyomi Seiya • RFQ Repair & Installation Plans CY Tan
UpdateGeneral Info• Latest Budget Numbers
– No Change (FY13 Department Budgets are due July16 – no word on PIP)
• Labor– Met with Roger – discussed concern over PIP labor (contractors)– Keep an eye on labor changes – impact to schedule!
• RLS Info– Elmie – where are we?
• Shutdown – Comments (Mary)?Task Info (highlights)• RFQ
– Progress being made – CY Tan will talk about this….
• Cavity 7 Refurb – Where are we?• Absorber work continuing – Most (if not all) parts are in…• Linac Modulator Work – • High Power Report (J. Steimel – soon)• LCW – work is underway and so far looks to be on schedule - next slide• Booster Vacuum – PO for blowers has gone out• Booster Transformer – We are proceeding to purchase a new transformer ahead of the PIP
schedule due to potential failure of East Gallery transformer• Linac Transformer – bigger job then expected – FESS/EE continue to investigate
PIP Webpage and Elog• http://www-bd.fnal.gov/cgi-mach/machlog.pl?nb=pip&action=view&page=19&scroll=false&load=
• We should make better use of our elog…– Simple Entries– Pictures– Weekly work summary?
– RFQ has it’s own…..keep separate• Lots of data!
LCWThe LCW is moving along well:
• 95 LCW system drained during the week of July 2• Booster choke leak repairs and choke tube replacement pretty much
finished• Replacing BRF LCW valves as they become available during Booster
RF Cavity refurb.• 55LCW piping has been cut out at the Long 13 absorber site to make
room for the new absorber• 95 LCW piping work at the Long 13 absorber site is in progress• 95 LCW strainers mounted on enclosure walls, need to finish final
hook-ups to 95LCW system• 400 MeV valves and hoses have been replaced• 95LCW return piping to CUB contractor work is ongoing• T&M contractor is looking for aluminum welders to do the 95LCW
isolation valve and pump install work
High power test of ferrite cores – As of the last update
• The high power testing fixture was being worked on at low power– Measuring resonant frequency and Q of the
structure (loaded and unloaded)• The high current PS was in the room, but not
yet connected to the buss inside the high power testing fixture
• The goal was to complete a high power test of an old ferrite core by the end of June
John Reid, Kiyomi Seiya, and Dennis Barak
John Reid, Kiyomi Seiya, and Dennis Barak
High power test of ferrite cores –New updates
• The high current PS has been connected to the center buss and has been tested up to 10-kA– This should be enough bias current for our
purposes• 5-kW RF amp has been installed• An old Stackpole core has been tested up to
3.3-kW with no observable high loss effect• An old Toshiba core was tested this morning at
about 4-kW with no observable high loss effect
John Reid, Kiyomi Seiya, and Dennis Barak
High power test of ferrite cores –What’s next?
• We need more RF power in order to see the high RF loss effect– The current SS amp that is being used can be
swapped with one that has twice as many modules• Compare the observed high RF loss effect with
documentation from the original test that was done decades ago
• Begin high power testing of the new ferrite cores
B+dB
Booster Cogging
Fixed with RPOS feedback
Changed by dipole correctorDipole corrector: 0.009[T-m] @ 24.4[A]
0
50000
100000
150000
200000
250000
300000
350000
400000
0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008
bu
cke
t co
un
ts
Time [sec]
Tim
e
More B field
Less B field
Measurements(1)
Dipole offset and calculated bucket position
Measured bucket position with dipole offset(+4A on 24 dipole correctors at short)
Measured orbit difference with & w/o offset
Measurements(2)
ADC
DAC
FPGA
DSP
MFC board
MFC board
Slot 0 /frontend (Alex) VXI interface to the Acnet
Loader for DSP and FPGA codes to the board
DSP (Craig)Simplify set up parameters for all devices on the boardMemory mappingProtocol for reading and writing parameters and curves.
FPGA (Kiyomi)Cogging algorithmList up parameters for Acnet and DSP
Cable and Setup
Cable (Kent)DC offset to the 24 dipoles at long.
Setup (Kent , Kiyomi)Signal and scope at LLRF room
Plans