March 31, 2001 David Finley / Fermilab Saturday Morning Physics Slide 2.1 f Saturday Morning Physics - Accelerators • Accelerators • What’s Up Now? • What’s Up Next? <<<< We Are Here ...
Jan 01, 2016
ETF (Engineering Test Facility)
March 2001 Version shownAbout 400 meters long6 RDDS 0.9 m structures per girder shownTests Power Sources, DLDS, Structures
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A Tunnel for an NLC RF TestThe ETF ceclosure is mostly empty now and that is good!
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And Building for an NLC RF TestThe MP9 building is now being used to make parts of the CMS detector for the LHC but it can be reused for the ETF.
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1.8 meter long NLC RF structureMade by the KEK lab in Japan and tested at the SLAC lab in CaliforniaEach structure has 206 disks see next slide
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NLC RF copper disksEach disk has a 61 mm diameter and 8 mm thickness.The electron or positron beam goes through the center hole and unwanted energy is taken away in the four side channels.
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NLC Permanent MagnetInsert Shunt Quad on SSW stand by Volk
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TESLA at DESY is also an e+e- OptionTESLA = TeV Electron Superconducting Linear AcceleratorThe DESY lab is proposing an e+e- collider. The accelerator is made of superconducting rf cavities.The tunnel is about 6 meters in diameter.
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Protons on protonsThe good news is:We know how to do this standard techniquesThis gives us the energy frontierThis is the path to discoveryQ1: Whats it all made of? Q2: How does it all behave?
The bad news is:Continuing the standard approach costs too much
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LHC IR Quadrupole MagnetCold Mass OnlyInsert P. Schlabachs Slide ASC 18 Sep 2000 Slide 3
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LHC IR Quadrupole MagnetFermilab is making several high gradient quadrupole magnets for the Interaction Regions at the LHCThis quadrupole magnet is 36 inches in diameter and about 7 meters long
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VLHC - Low Field OptionG.W. Foster and V. KashikhinMay 2000
Magnet Cross-section
Upper Core
Superconducting Cable
Vacuum Chamber
Lower Core
Correction Holes
Inner Spacer Bar
Outer Spacer Bar
Connecting Plate
Vacuum Shell
Nitrogen Screen
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VLHC - Low Field OptionG.W. Foster and V. KashikhinMay 2000
TRANSMISSION LINE MAGNET VIEW
Iron Core
Vacuum chambers
100kA SC Cables
Nitrogen Screens
Vacuum shells
Support
Support tube
High precision spacer bar
Half cores connecting plate
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VLHC - Low Field OptionG.W. Foster and V. KashikhinMay 2000
Test Stand for the Field Measurement
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A Tunnel Vision for the VLHCThe low field is on the bottom, the high field is on the top.The high and low field are shown in the LEP tunnel as an example.The tunnel is real and is about 12 feet in diameter.
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Insert Ernies Comments on a vlhc
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Insert Ernies 500 km pipetron map study
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Muons on muonsThe good news is:Just another simple lepton just like the electronBut heavier than the electronThey dont radiate photons like crazyThey interact better (40,000 times better) with HiggsQ3: How do particles come by their mass?The bad new is:They only stay around for 0.000 002 seconds (or so)They spit out electrons which then radiate like crazy
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Insert Muon Collider Schematic from Word
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Neutrino BeamThe good new is:All the muons decay to electrons and neutrinosNever been done surprises probably in storeQ1, Q2, Q3, Q4, Q4++
The bad news is:Not discovery, not simple So, maybe not interesting?
Aside: Really global-sized experiments
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Insert DF slide with NF at Fermilab
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Insert MuSR FESS Slide with Geology
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Insert Geer L/E and other Physics Guidance
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And Into the Beyond ...The good new and the bad new is:Hasnt been done before For good reasons, usually ...
One example is Plasma acceleration100 TeV center of mass and ...All the equipment fits on the Fermilab siteBut is costs too much to operate At least using todays technology
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Insert Lindas Plasma acceleration
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A0 Photoinjector at FermilabRF Gun and focussing solenoids http://www-ap.fnal.gov/A0PI/a0pics.html
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A0 Photoinjector at FermilabSpectrometer magnets, plasma chamber, and beam dump
http://www-ap.fnal.gov/A0PI/a0pics.html
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SummaryThis is still fun.Q1: So what IS it all made of? andQ2: How DOES it all behave? etc etc
There is still lots to do.Decades (in performance and on calendars)The best ideas are yet to come ...
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Behind the ...www.fnal.gov (not likely on www.VH1.com)SHOW AIRS: SAT 3/31 at 9am CTYour Host: David [email protected] Fermilab AcceleratorsSCIENCE