Interaction Region and Detector
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Page 1 Interaction Region and Detector EM Calorimeter Hadron Calorimeter Muon Detector EM Calorimeter Solenoid yoke + Hadronic Calorimeter Solenoid yoke + Muon Detector HTCC RICH RICH Tracking 5 m solenoid IP Ultra forward hadron detection dipole dipole Low-Q 2 electron detection Large aperture electron quads Small diameter electron quads ion quads Small angle hadron detection dipole Central detector with endcaps ~50 mrad crossing
description
Ultra forward hadron detection. Small angle hadron detection. Central detector with endcaps. Low-Q 2 electron detection. ion quads. dipole. Large aperture electron quads. IP. dipole. dipole. Small diameter electron quads. ~50 mrad crossing. Solenoid yoke + Muon Detector. - PowerPoint PPT Presentation
Transcript of Interaction Region and Detector
Page 1
Interaction Region and Detector
EM
Cal
orim
eter
Had
ron
Cal
orim
eter
Muo
n D
etec
tor
EM
Cal
orim
eter
Solenoid yoke + Hadronic Calorimeter
Solenoid yoke + Muon Detector
HT
CC
RIC
H
RICH
Tracking
5 m solenoid
IP
Ultra forwardhadron detection
dipole
dipole
Low-Q2
electron detection
Large apertureelectron quads
Small diameterelectron quads
ion quads
Small anglehadron detection
dipole
Central detector with endcaps
~50 mrad crossing
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Interaction Region Physics Magnets
dipole
dipole
Large apertureelectron quads
Small diameterelectron quads
ion quadsdipole
Solenoid• 5 m long• 2 – 4 T• Return Yoke can be here
(at +/- 5 meters)
Dipole• 5 m from IP• 0.8-1.0 m• 2 Tm• 1-5 deg• B @ e- beam < 20 G
Electron quads• 3.5 m from IP• 0.3 m• 3 cm bore• 100 T/m• outer edge < 8.5 cm (i.e. block up to 1.5 deg)
Crossing angle
Ion quads• 7, 9, 13 m from IP• 1.2, 2.4, 1.2 m• 14, 24, 34 cm bore• 89, 51, 36 T/m• Outer edge < 20, 30, 50 cm• B @ e- beam < 10 G
Dipole• 18 m from IP• 3.5 m• 20 Tm• gap +/- 20 cm
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Physics Magnet Specifications
crab crossing angle 50 mradmax B field for SC magnet 6 T
LengthPeak field
peak field gradient
aperture (radius)
acceptance angle
requirementdistance from IP
acceptance angle
e & p beamline
separationT T/m cm deg m deg mm
Detector solenoid 5 2 to 4 500 - 300Detector dipole 1 0.8-1.0 2.5-2.0 5 250Detector dipole 2 3.5 6 20 18 900electron final focusing quad 1 0.3 109 1.5 3.5 175electron final focusing quad 2 0.3 96 1.5 4 200ion final focusing quad 1 1.2 89 6.74 >0.5 7 0.55180573 350ion final focusing quad 2 2.4 51 11.76 >0.5 9 0.74896507 450ion final focusing quad 3 1.2 35.7 16.81 >0.5 13 0.74073469 650
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Estimate of the detector magnetic field (Bz)
QFF1 QFF1QFF2 QFF2QFFL QFFL
QFFP QFFP
~2 kG
4
3
2
1
Tesla
The detector magnetic field will have a significant impact on the beams. Some of the final focusing elements will have to work in this field.
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Hall C Horizontal Bend(HB) SC Magnet Cutaway
• Superferric “C” magnet• 2.6 Tesla• 21cmx25cm warm bore• 0.75 M EFL• 1.93 TM• 19 % design margin• 220 KJ stored Energy• SC is SSC outer cable
(shown with HMS Q1)
SHMS: reaches down to (central) angle of 5.5 deg at distance of ~1.5 meterMEIC: @ distance of 5 meters reaches down to very small angles would like to cover angle range between 1 and 5 degrees or down to 8.5 cm and up to 42.5 cm
Separation of Electron and Ion Beams
