A tracking code for injection and acceleration studies in synchrotrons
- Argonne National Lab., IL (United States)
CAPTURE-SPC is a Monte-Carlo-based tracking program that simulates the injection and acceleration processes in proton synchrotrons. The time evolution of a distribution of charged particles is implemented by a symplectic, second-order-accurate integration algorithm. The recurrence relations follow a time-stepping leap--frog method. The time-step can be varied optionally to reduce computer time. Space-charge forces are calculated by binning the phase-projected particle distribution. The statistical fluctuations introduced by the binning process are reduced by presmoothing the data by the cloud-in-cell method and by filtering. Both the bin size and amount of filtering can be varied during the acceleration cycle so that the bunch fine structure is retained while the short wavelength noise is attenuated. The initial coordinates of each macro particle together with its time of injection are retained throughout the calculations. This information is useful in determining low-loss injection schemes.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 390586
- Report Number(s):
- ANL/ASD/CP-91317; CONF-9609256-3; ON: DE97000402; TRN: 96:029214
- Resource Relation:
- Conference: CAP `96: 1996 computational accelerator physics conference, Williamsburg, VA (United States), 24-27 Sep 1996; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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