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introduction [2013/12/24 08:34]
pereira
introduction [2016/10/30 15:52]
pereira
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 ====== Introduction ====== ====== Introduction ======
-The S800 ((D. Bazin, J.A. Caggiano, B.M. Sherrill, J. Yurkon, and A. Zeller, Nuclear Instruments and Methods in Physics Research B 204, 629 (2003) )) is a superconducting spectrograph used for reaction studies with high-energy radioactive beams produced at the [[http://​www.nscl.msu.edu|NSCL Coupled-Cyclotron Facility (CCF)]] and the [[http://www.nscl.msu.edu/​exp/​devices#​a1900|A1900 Separator]] ((D.J. Morrissey, B.M. Sherrill, M. Steiner, A. Stolz, and I. Wiedenhoever,​ Nuclear Instruments and Methods in Physics Research B 204, 90 (2003) )). It was designed for high-precision measurements of scattering angles (ΔΘ=2 msr) and momentum (p/​Δp=2×10<​sup>​4</​sup>​),​ and large momentum and solid-angle acceptances (ΔΩ=20 msr, Δp/p=6%). The S800 layout shown in the next figure depicts the two parts of the S800: the analysis line and the spectrograph. ​+The S800 ((D. Bazin, J.A. Caggiano, B.M. Sherrill, J. Yurkon, and A. Zeller, Nuclear Instruments and Methods in Physics Research B 204, 629 (2003) )) is a superconducting spectrograph used for reaction studies with high-energy radioactive beams produced at the [[http://​www.nscl.msu.edu|NSCL Coupled-Cyclotron Facility (CCF)]] and the [[http://groups.nscl.msu.edu/​a1900|A1900 Separator]] ((D.J. Morrissey, B.M. Sherrill, M. Steiner, A. Stolz, and I. Wiedenhoever,​ Nuclear Instruments and Methods in Physics Research B 204, 90 (2003) )). It was designed for high-precision measurements of scattering angles (ΔΘ=2 msr) and momentum (p/​Δp=2×10<​sup>​4</​sup>​),​ and large momentum and solid-angle acceptances (ΔΩ=20 msr, Δp/p=6%). The S800 layout shown in the next figure depicts the two parts of the S800: the analysis line and the spectrograph. ​
  
 {{:​wiki:​s800_layout.png|Layout of the S800}} {{:​wiki:​s800_layout.png|Layout of the S800}}
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 The spectrograph consist of two [[Magnets#​Spectrograph Quadrupole Doublet|quadrupoles]],​ a [[Magnets#​Spectrograph Sextupole|sextupole]] and two big [[Magnets#​Spectrograph Dipoles|dipoles]] assembled in a QQ-S-DD configuration (segment 8) that spans vertically from the target station to the focal plane, with a total length of 18 m. The sequence of pictures below show the quadrupole doublet at the "​entrance"​ of the spectrograph (left); the side view of the spectrograph as seen from the south bottom level of the [[S3 vault]]; and the second dipole as seen from the top level. The spectrograph consist of two [[Magnets#​Spectrograph Quadrupole Doublet|quadrupoles]],​ a [[Magnets#​Spectrograph Sextupole|sextupole]] and two big [[Magnets#​Spectrograph Dipoles|dipoles]] assembled in a QQ-S-DD configuration (segment 8) that spans vertically from the target station to the focal plane, with a total length of 18 m. The sequence of pictures below show the quadrupole doublet at the "​entrance"​ of the spectrograph (left); the side view of the spectrograph as seen from the south bottom level of the [[S3 vault]]; and the second dipole as seen from the top level.
  
-{{:​wiki:​target_station_box.jpg?​400|Spectrograph quadrupole doublet (yellow chamber) as seen from the bottom of the S3 vault.}} +{{:​wiki:​target_station_box.jpg?​350|Spectrograph quadrupole doublet (yellow chamber) as seen from the bottom of the S3 vault.}} 
-{{:root:analysis-line4.jpg?400|Spectrograph ​quadrupole doublet (yellow chamber) ​as seen from the bottom of the S3 vault.}}+{{:wiki:S3-spectrograph.jpg?350|Spectrograph as seen from the south bottom ​of the S3 vault. Note that only the second dipole can be seen.}} 
 +{{:​wiki:​dipole-d2.jpg?​350|Second dipole of the spectrograph as seen from the top of the S3 vault.}}
  
  
introduction.txt · Last modified: 2016/10/30 15:52 by pereira