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Year Title Experiment Spokesperson
2010-2012Qweak E08-016 Carlini, Finn, Kowalski, Page -
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Features:
- Conservative Superconducting Cold Fe Design
- Q2 & Q3 are Identical & Cryostable
- Multipole Windings
Specifications:
Q1 Q2/Q3 Gradient 605 G/cm 445 G/cm "Good Field" Radius 22 cm 30 cm Pole Tip Field 1.5 T 1.56 T Radius to Pole -
Features:
- Flat Racetrack, Cryostable Coils
- No Negative Curvature on Coil
- Graded Air Gap
- Flat Poles
- All Yoke Pieces <20 tons
Specifications:
Gap 421 cm Good Field Width +/- 30 cm Bend Angle 25o Max. Pole Tip Field 1.66 T (6 GeV/c) Dynamic Field Range 10:1 Field Uniformity B/B -
Performance of HMS Studied for Two Tunes:
Parallel ⇒ Point Best in plane angle accuracy. Point ⇒ Point Best vertex reconstruction. HMS Transmission Efficiency Studied as Functions of:
- Target location offsets
- Momentum offsets