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Main Parameters

Booster Parameters


  Notation Model Value  
General Parameters      
Injection energy $E_0$ $ 0.3 $ GeV
Final energy $E_f$ $ 7.0 $ GeV
Maximum energy $E_m$ $ 7.7 $ GeV
Beam current (single bunch) $I_{sb}$ $0.815-3.67$ mA
Number of electrons (single bunch) $N$ $6.25\times10^{9}-28.125\times10^{9}$ electrons
Circulating charge (single bunch) $q$ $1.0-4.5$ nC
Number of FODO cells $N_{cells}$ $40$  
Number of superperiods $N_{sp}$ $2$  
Energy ramp shape   Linear  
Energy ramp time (injection to extraction) $T_{ramp}$ $225$ ms
Ramp repetition rate $f_{cycle}$ $2$ Hz
Transverse parameters      
Transverse tune      
(92, 109, 132 nm emittance lattices) $\nu_x$ $ 13.75 $ $ 12.75 $ $ 11.75 $  
(92, 109, 132 nm emittance lattices) $\nu_y$ $ 5.80 $ $ 9.80 $ $ 9.80 $  
Natural Chromaticity      
(92, 109, 132 nm emittance lattices) $\xi_{x,n}$ $ -12.94 $ $ -10.60 $ $ -7.15 $  
(92, 109, 132 nm emittance lattices) $\xi_{y,n}$ $ -20.19 $ $ -20.64 $ $ -21.11 $  
Dispersion function     m
(92, 109, 132 nm emittance lattices) $\eta_{x,\textrm{max}}$ $ 0.78 $ $ 0.84 $ $ 0.96 $  
(92, 109, 132 nm emittance lattices) $\eta_{y,\textrm{max}}$ $ 0.00 $ $ 0.00 $ $ 0.00 $  
Beta function     m
(92, 109, 132 nm emittance lattices) $\beta_{x,\textrm{min}}$ $ 1.58 $ $ 1.74 $ $ 2.06 $  
(92, 109, 132 nm emittance lattices) $\beta_{y,\textrm{min}}$ $ 5.03 $ $ 2.61 $ $ 2.67 $  
(92, 109, 132 nm emittance lattices) $\beta_{x,\textrm{ave}}$ $ 7.87 $ $ 8.10 $ $ 7.93 $  
(92, 109, 132 nm emittance lattices) $\beta_{y,\textrm{ave}}$ $ 12.57 $ $ 8.67 $ $ 8.53 $  
(92, 109, 132 nm emittance lattices) $\beta_{x,\textrm{max}}$ $ 16.90 $ $ 17.05 $ $ 16.04 $  
(92, 109, 132 nm emittance lattices) $\beta_{y,\textrm{max}}$ $ 22.20 $ $ 16.70 $ $ 16.29 $  
Longitudinal parameters      
Circumference $C$ $ 368.000 $ m
Revolution frequency $f_0$ $ 814.653 $ kHz
Revolution time $T_0$ $ 1.228 $ $\mu$s
Harmonic number $h_\textrm{rf}$ $432$  
Typical RF voltage (7 GeV) $V_0$ $ 9.5 $ MV
Typical synchronous phase (9.5 MV, 7 GeV) $\phi_s$ $ 2.41 $ $ 137.83 $ Rad,Deg
Momentum compaction factor      
(92, 109, 132 nm emittance lattices) $\alpha_c$ $ 7.144 $ $ 8.447 $ $ 9.705 $ $\times 10^{-3}$
Synchrotron tune (9.5MV, 7 GeV)      
(92, 109, 132 nm emittance lattices) $\nu_s$ $ 2.223 $ $ 2.417 $ $ 2.591 $ $\times 10^{-2}$
Equilibrium momentum spread (zero current) $\sigma_{\delta}$ $ 0.104 $ %
Equilibrium bunch length (zero current)      
(92, 109, 132 nm emittance lattices) $\sigma_L$ $ 19.56 $ $ 21.27 $ $ 22.80 $ mm
(92, 109, 132 nm emittance lattices) $\sigma_t$ $ 65.3 $ $ 71.0 $ $ 76.1 $ ps
Radiation parameters      
Radiation energy loss per turn (dipole) $U_{r,d}$ $ 6.378 $ MeV
Critical photon energy (dipole) $E_{c}$ $22.84$ keV
Partition number $D$ $ 7.121 \times 10^{-4} $  
Damping Time $\tau_x$ $ 2.692 $ ms
  $\tau_y$ $ 2.694 $ ms
  $\tau_E$ $ 1.348 $ ms
Emittance (7 GeV)      
(92, 109, 132 nm emittance lattices) $\epsilon_n$ $ 92.0 $ $ 109.2 $ $ 131.6 $ nm-rad
Radiation integrals      
(92, 109, 132 nm emittance lattices) $I_1$ $ 2.629 $ $ 3.109 $ $ 3.572 $ m
  $I_2$ $ 1.887 \times 10^{-1} $ m$^{-1}$
  $I_3$ $ 5.666 \times 10^{-3} $ m$^{-2}$
  $I_4$ $ -1.344 \times 10^{-4} $ m$^{-1}$
(92, 109, 132 nm emittance lattices) $I_5$ $ 2.417 $ $ 2.868 $ $ 3.455 $ $\times 10^{-4}$m$^{-1}$


next up previous
Next: Lattice Definitions Up: APS Injector Synchrotron (Booster) Previous: APS Injector Synchrotron (Booster)
Nicholas S. Sereno 2006-07-07