This shows you the differences between two versions of the page.
Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
start [2013/10/16 10:01] pereira |
start [2013/10/16 20:45] pereira |
||
---|---|---|---|
Line 1: | Line 1: | ||
- | ====== | + | ====== |
+ | 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. | ||
- | ===== Technical Introduction ===== | ||
- | ==== General | + | ===== Technical Aspects 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/Δp=2×10< | + | |
+ | * [[Introduction]] | ||
+ | * Stations | ||
+ | * Magnets | ||
+ | * Modes of Operation | ||
+ | * Determination of Angles and Momentum | ||
+ | * Detectors | ||
+ | * Electronics | ||
+ | * Software | ||
+ | * Data Acquisition | ||
+ | * Coupled Detectors/ | ||
+ | * Types of Experiments | ||
- | {{: | + | ===== Operation |
- | + | ||
- | === Analysis Line === | + | |
- | + | ||
- | The analysis line extends from the object position to the target station, with a total length | + | |
- | + | ||
- | + | ||
- | === Spectrograph | + | |
- | The spectrograph consist of two quadrupoles, | + | |
- | + | ||
- | + | ||
- | + | ||
- | ^ 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 | | + | |
Line 67: | Line 54: | ||
=== Spectrograph Sextupole === | === Spectrograph Sextupole === | ||
The only high-order magnet included in the S800 is a sextupole coil installed around the bore tube of Q2. The purpose of this element is to correct the broadening of the beam at the focal plane due to the dominant (x|2) aberration. This defines a narrower trajectory of the beam, allowing the use of a beam blocker at the focal plane to block the unreacted beam when its magnetic rigidity is close to the tuned setting. | The only high-order magnet included in the S800 is a sextupole coil installed around the bore tube of Q2. The purpose of this element is to correct the broadening of the beam at the focal plane due to the dominant (x|2) aberration. This defines a narrower trajectory of the beam, allowing the use of a beam blocker at the focal plane to block the unreacted beam when its magnetic rigidity is close to the tuned setting. | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||
+ | |||