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- | **The S800 spectrograph** | + | ====== Technical Aspects of the S800 ====== |
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+ | ===== Technical Introduction ===== | ||
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+ | ==== General ==== | ||
+ | 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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+ | {{: | ||
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+ | ==== Analysis Line ==== | ||
+ | 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 | | ||
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