Presentation on theme: "MTA Installation Progress Report June 8, 2007 MTA Installation Web Page F.G. Garcia AD/Proton."— Presentation transcript:
MTA Installation Progress Report June 8, 2007 http://www-bd.fnal.gov/external_beams/Projects/MTA/MTA_index.html MTA Installation Web Page F.G. Garcia AD/Proton Source Department
06/08/07F.G. Garcia2 MTA Quizz WWhat does MuCool stand for? Muon Cooling Experiment WWhat does MTA stand for? MuCool Test Area IIs this part of the Proton Source? No! This line belongs to External Beams Division SSo… Why do I care?? 1.Because they will extract beam from Linac MMore precisely, around the Chopper region 2.Because this line will provide us capability to measure Linac emittance 3.Because I am the Project Manager and… today is my birthday…
06/08/07F.G. Garcia3 MTA Beam line The beam line will be used to test liquid hydrogen absorbers for beam cooling Desirable beam requirements H - at 400 MeV 50 mA peak current & 50 sec pulse length @ 15 Hz (~1.6E13ppp) Big problem with shielding!!! Other experiments can use a more modest integrated intensity and rep rate Tests of pressurized RF cavities Irradiation of detector components etc…
06/08/07F.G. Garcia4 MTA Beam line Layout pulsed magnets Cooling ring dipole Quadrupoles Shielding wall (12ft long) MTA Exp. Hall
06/08/07F.G. Garcia5 MTA Beam Line – Diagnostic Optical Functions Beta Functions 0 25 50 140 0 Experiment hall 40 20 0 25 50 ~10m magnet free straight section for transverse emittance measurement Beam size changes by an order the magnitude
06/08/07F.G. Garcia6 MTA Beam line Installation Goal Install the MTA beam line components, or as much as possible, during this shutdown. Start from scratch…or almost from scratch Build stands Refurbish magnets Utilities installation Expand electrical distribution for MTA Install cable trays Install LCW system for cooling requirements Install instrumentation, magnets, beam valves, beam stops, vacuum, controls, etc…
06/08/07F.G. Garcia8 MTA - Progress Report Real Estate established at the South end of the Linac Gallery (thanks Linac group!) Total of 8 relay racks 3 for power supplies 5 for electronics and controls Magnets Current at IB2 for refurbishment/measurements 6 (5+1) CRD 12(8+4) 200 MeV (TQTB) 5 (4+1) SQA There are 2 new “C”-magnets been built These magnets will be responsible for beam extraction from Linac to MuCool enclosure Estimate time for delivery: middle August 6 CDA (5 install+1 spare) CDR in storage (02/22) Coil refurbished (04/24) Alignment nests (05/03) Current Status - Coil refurbishement complete -Power flag relocation ongoing -Water connections ongoing 10 TQTBs (install 8 + 2 spares) (also known as 200MeV Quads, Green Quads, 400MeV Quads…) Reference the magnets complete Hydraulic test passed with flying colors… Current Status - Remnant field measurement complete - Upgrade the electrical box mostly complete - Beam pipes at desired length installed - Reference is complete Future Plans: - Ship to MAB to dry fit the stands and final storage 5 SQA Magnets (install 4 + 1 spares) SQA staged at X gallery waiting to be shipped to IB2 (05/11) Current Status: - 4 magnets staged at IB2 - Need to retrieve one more SQA from Booster tunnel - Working on stand design ToDoList 1.Flush out the magnet 2.Hipot 3.Replace the water tubings with kynar 4.Weld alignment fiducials
06/08/07F.G. Garcia9 MTA - Progress Report Alignment Network setup Both enclosures have the network done Tiroids and monuments have been installed on the walls and floor respectively At MTA Exp. Hall enclosure the local coordinate system has been established Awaiting for an opportunity to complete this job in Linac The completion of this task prior the shutdown would gain valuable time during the installation Power Supplies AD/EE group will support the power supplies Quadrupoles (B. Brooker) 200 MeV Bartleson supplies SQAs Lambda Cooling Ring Dipoles (B. Brooker) String of 4 PEI (Linac Lower Level) Single Power Ten (from 400MeV upgrade) “C” magnet (M. Kuffer) New power supply being built Trims (B. Brooker) Inherit from Booster after the shutdown
06/08/07F.G. Garcia10 MTA - Progress Report Instrumentations/Diagnostics BPM System Use 10 Booster style pickups Readout electronics will be similar to the pbar target bpms. Toroid System There will be 3 toroids installed The beam line only needs 2 toroids. One right at the extraction from Linac and the other at the very end. The 3 rd toroid will be installed adjacent to the most DW one for instrumentation/interlock group e-berm development platform Booster has two (2) 3.25in Pearson toroids. The other one will be supplied by instrumentation group. MWs Requirements: 7 MWs with different wire spacing Booster has enough MW cans that will be re-used MW electronics will be similar to KTeV system. BLMs There will be 12 BLMs along the line. Electronics will be provided by M. Olson. Controls (M. Kucera) M. Kucera and R. Godwin are helping integrate MTA to the Linac Control System.
06/08/07F.G. Garcia11 MTA - Progress Report Vacuum System Vacuum Components - 3 Ion pumps (600l/s) - 2 roughing valves - 2 Pirani gauge - 2 ion gauge - 2 beam valves Courtesy: T. Anderson
06/08/07F.G. Garcia12 MTA Installation - Current Issues Shielding under the hatchway area The existing shielding underneath the hatch is not sufficient to run beam to the MTA enclosure 26’-0” 13’-6” concrete soil concrete air soil 21’-0” 10’-6” It has been installed primary to protect personnel inside the MTA enclosure from Linac beam
06/08/07F.G. Garcia13 MTA Installation – Current Issues (cont.) Hey! Wait…there is more… Problem: 805 MHz waveguide, 201MHz Coax and cable tray run inside the hatch!!
06/08/07F.G. Garcia14 MTA Installation – Current Issues (cont.) Head of External Beam line decided to remove the shielding blocks underneath the hatch and re-stack appropriately Work group meets weekly with safety to resolve this problem. More manpower has been added to the group in order to re- design the shielding configuration It must accommodate a beam stop upstream the shielding wall It looks like one may be able to leave the WG, Coax and cable tray as is and work around it (?) Still need to be resolved and decided MTA wants to run during the shutdown… You may be wondering…if the shielding will be removed, what about NTF? Good question : NTF will be able to run with the hatch shielding removed and the subsequent RF stations locked off. However, the hatch must be installed and locked, and MuCOOL would need to be interlocked to Linac.
06/08/07F.G. Garcia15 MTA Installation – Current Issues (cont.) If the shielding blocks are removed… The beam line installation will take advantage of this. Major components will be lower to the enclosure thru the hatch area The original plan was to use the infrastructure available at north end of Linac Up to 25% reduction in installation time one could expect If the network and the stake survey in Linac enclosure are accomplished prior the shutdown, another 3 days can easily be saved during the shutdown…
06/08/07F.G. Garcia16 Bottom line The project is facing some challenges We have a plan to manage these problems in order to minimize the risk of project delay Working on a strategy to address the problem Patience and perseverance are the key at this point I have no doubt we will resolve the issues and complete the installation within the shutdown timeframe! MTA Installation – Current Issues (cont.)
06/08/07F.G. Garcia18 Extract Beam to MTA line LinacMaxNominal Beam current (mA) 5035 Macro pulse width (sec) 5025 Repetition Rate (Hz) 157.5 Beam intensity (protons/pulse) 1.6E165.5E12 The simplest way of doing it is to use a Linac beam study pulse. At a glance: - Currently Linac uses 3 dedicated chop lengths as inputs to the pulse shifter (HEP,NTF & studies). - T-clock event triggers request for beam, in this case, studies pulse ($OA). - The frequency of the beam can be adjusted by the rep rate generator.