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- | * Technical Aspects of the S800 | + | ===== Technical Aspects of the S800 ===== |
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- | * Analysis Line | + | |
- | * Spectrograph | + | * Stations |
- | * Stations | + | * Magnets |
- | * Object | + | * Modes of Operation |
- | * Intermediate Plane | + | * Determination of Angles and Momentum |
- | * Target | + | * Detectors |
- | * Focal Plane | + | * Electronics |
- | * Magnets | + | * Software |
- | * Spectrograph Dipoles | + | |
- | * Spectrograph Quadrupole Doublet | + | |
- | * Spectrograph Sextupole | + | |
- | * Analysis Line Dipoles | + | |
- | * Analysis Line Quadrupoles | + | |
- | * Modes of Operation | + | |
- | * Focus Mode | + | |
- | * Dispersion Matching Mode | + | |
- | * Monochromatic Mode | + | |
- | * Determination of Angles and Momentum | + | |
- | * Ion Optics Coordinates | + | |
- | * Reconstruction Method | + | |
- | * Calculation of Inverse Maps | + | |
- | * Detectors | + | |
- | * Plastic Scintillators | + | |
- | * Tracking Parallel Plate Avalanche Counters (PPAC) | + | |
- | * Cathode Readout Drift Chambers (CRDC) | + | |
- | * Ionization Chamber | + | |
- | * Hodoscope | + | |
- | | + | |
- | * General Description | + | |
- | * Time Stamping Scheme | + | |
- | * Busy Scheme | + | |
- | * Schematics | + | |
- | * Trigger Box | + | |
- | * Busy Circuit | + | |
- | * Gate Generation | + | |
- | * Inspect Channels | + | |
- | * Time Stamping | + | |
- | * Coupling of S800 with Other Detectors | + | |
- | | + | |
- | * SpecTcl | + | |
- | * The TreeParameter Class | + | |
- | * Frequently Used Parameters | + | |
- | * Frequently Used Variables | + | |
* Data Acquisition | * Data Acquisition | ||
- | | + | * Coupled Detectors/Devices |
- | | + | * Types of Experiments |
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- | ====== Technical Aspects | + | |
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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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- | [[wiki: | + | |
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- | {{: | + | |
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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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- | [[s800]] | + | |
- | pirola pirola | + | |
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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 | | + | |
+ | ===== Operation of the S800 ===== | ||