Add a simple space charge benchmark for FFTX. #761
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| sigma_z = r * sigma_r | ||
| gamma = energy_MeV / mass_MeV | ||
| beta = (1.0 - (1.0 / gamma) ** 2) ** 0.5 | ||
| c0 = 2.99792458e8 # speed of light in m/s |
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| gm = sim.Geom(lev=0) | ||
| dr = gm.data().CellSize() | ||
| dV = np.prod(dr) |
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| # plot data slices | ||
| ng = F_x.n_grow_vect | ||
| q_e = -1.602176634e-19 |
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| ) | ||
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| # clean shutdown | ||
| del sim |
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Unnecessary delete statement in function Warning
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This is based on:
C. E. Mayes, R. D. Ryne, and D. C. Sagan, "3D Space Charge in BMAD," in proc. IPAC2018,
DOI:10.18429/JACoW-IPAC2018-THPAK085
It is a simplified version of PR#429, modified to use the FFT IGF Poisson solver, with an increase in numerical resolution.