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Welcome to the wiki page of the NSCL S800 spectrograph. The page provides technical information about the S800, as well as instructions to operate the S800 prior to and during an experiment. | Welcome to the wiki page of the NSCL S800 spectrograph. The page provides technical information about the S800, as well as instructions to operate the S800 prior to and during an experiment. | ||
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+ | ===== Technical Aspects of the S800 ===== | ||
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* Stations | * Stations | ||
* Magnets | * Magnets | ||
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* Types of Experiments | * Types of Experiments | ||
- | ===== Introduction ===== | + | ===== Operation of the S800 ===== |
- | The S800 [1] is a superconducting spectrograph used for reaction studies with high-energy radioactive beams produced at the NSCL Coupled-Cyclotron Facility (CCF) and the A1900 Separator [2]. It was designed for high-precision measurements of scattering angles (ΔΘ=2 msr) and momentum (p/ | + | |
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- | ==== Analysis Line ==== | + | |
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- | The analysis line extends from the object position to the target station, with a total length of 22 m. It includes four 22.5° dipoles, five quadrupole triplets, and two vertically steering magnets, assembled in two segments with configurations QQQ-H-DD-QQQ (segment 6) and QQQ-DD-H-QQQ-QQQ (segment 7) symmetrically oriented around an intermediate image plane. The maximum rigidity is 5 Tm, although it depends on the tune of the quadrupoles. The acceptances of the analysis line depends on the optical mode. | + | |
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- | ==== Spectrograph ==== | + | |
- | The spectrograph consist of two quadrupoles, | + | |
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- | ^ Momentum Resolution (p/ | ||
- | ^ Momentum Acceptance | ||
- | ^ Angle Resolution | ||
- | ^ Solid Angle Acceptance | ||
- | ^ Momentum Dispersion (x/ | ||
- | ^ Angle Dispersion (y/b) | 0.9 mm/ | ||
- | ^ Magnification(x/ | ||
- | ^ Focal Plane Size (x × y) | 55 cm ×15 cm | ||
- | ^ Maximum Rigidity | ||
- | ^ Detector Position Resolution (x)| 0.3 mm | | ||
- | ^ Detector Position Resolution (y)| 0.3 mm | | ||