The Tevatron Collider Upgrade to L=2E32 (aka Run II)
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Transcript of The Tevatron Collider Upgrade to L=2E32 (aka Run II)
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The Tevatron Collider Upgrade to L=2E32 (aka Run II)
Steve HolmesSymposium in Commemoration of the
25th Anniversary of First pbar-p Collisions at Fermilab
December 17, 2010
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Luminosity Strategy
Tevatron Symposium, S. Holmes Page 2
L =
fN p (BN p )
2( p2 p
2 )F ( z / *)
3fN p( BNp )
* ( p p )F ( z / * )
Number of protons per bunch
Number of antiprotons (total)
Beam emittance
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Tevatron Symposium, S. Holmes Page 3
TM-1491
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Tevatron Symposium, S. Holmes Page 4
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Main Injector Schedule 44
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Main Injector Construction
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Recycler
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MI and Recycler Complete
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Run II Goals
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RunII Goal (wo/ Recycler)
RunII Goal (w/ Recycler)
Achieved(Best store)
Protons/bunch 2.70E+11 3.00E+11 2.86E+11Antiprotons/bunch 3.00E+10 6.60+10 9.44+10Total Antiprotons 1.08E+12 2.83E+12 3.40E+12Antiproton Production Rate 2.0E+11 3.8E+11 2.6E+11 hour-1
Accumulator->150 GeV eff 0.90 0.90 0.90150 GeV -> low eff 0.90 0.90 0.92Accumulator -> low eff 0.81 0.81 0.83Proton emittance (95%, norm) 20 18 15 mm-mrPbar emittance (95%, norm) 15 18 12 mm-mrBeta @ IP 0.35 0.35 0.28 mBeam Energy 1000 980 980 GeVBunches 36 36 36Longitudinal Emittance (protons) 3 3 3 eV-sec
Longitudinal Emittance (pbars) 3 3 3 eV-sec
Form Factor (Hourglass) 0.70 0.70 0.65Typical Luminosity 8.1E+31 2.0E+31 4.0E+31 cm-2sec-1
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Run II Luminosity
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04/0
1/01
07/0
1/01
10/0
1/01
01/0
1/02
04/0
1/02
07/0
1/02
10/0
1/02
01/0
1/03
04/0
1/03
07/0
1/03
10/0
1/03
01/0
1/04
04/0
1/04
07/0
1/04
10/0
1/04
01/0
1/05
04/0
1/05
07/0
1/05
10/0
1/05
01/0
1/06
04/0
1/06
07/0
1/06
10/0
1/06
01/0
1/07
04/0
1/07
07/0
1/07
10/0
1/07
01/0
1/08
04/0
1/08
07/0
1/08
10/0
1/08
01/0
1/09
04/0
1/09
07/0
1/09
10/0
1/09
01/0
1/10
04/0
1/10
07/0
1/10
10/0
1/10
0.00E+00
5.00E+31
1.00E+32
1.50E+32
2.00E+32
2.50E+32
3.00E+32
3.50E+32
4.00E+32
4.50E+32
0.00E+00
5.00E+31
1.00E+32
1.50E+32
2.00E+32
2.50E+32
3.00E+32
3.50E+32
4.00E+32
4.50E+32
Peak Luminosity Peak Lum 20x Average
Peak
Lum
inos
ity
Peak
Lum
20x
Ave
rage
Main Injector
Recycler
First DOE Review
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Tevatron Symposium, S. Holmes Page 11
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Electron Cooling
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Some (nice) words about the DOE
“Run II is not a construction project. Run II is a complex campaign of operations, maintenance, upgrades, R& D and studies.” D. Lehman to HEPAP, July 2003
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History of Run II
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135791113151719212325272931333537394143454749515355575961636567697173757779818385878991939597991011031051071091111131151171191211231251271291311331351371391411431451471491511531551571591611631651671691711731751771791811831851871891911931951971992012032052072092112132152172192212232252272292312332352372392412432452472492512532552572592612632652672692712732752772792812832852872892912932952972993013033053073093113133153173193213233253273293313333353373393413433453473493513533553573593613633653673693713733753773793813833853873893913933953973994014034054074094114134154174194214234254274294314334354374394414434454474494514534554574594614634654674694714734754774794814834854874894914934954974995015035050.00
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Weekly Integrated Luminosity Run Integrated Luminosity
Week #
Wee
kly
Inte
grat
ed L
umin
osity
(pb-
1)
Run
Inte
grat
ed L
umin
osity
(pb-
1)