Add flag to disable laser evolution#1323
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huixingjian wants to merge 31 commits intoHi-PACE:developmentfrom
Open
Add flag to disable laser evolution#1323huixingjian wants to merge 31 commits intoHi-PACE:developmentfrom
huixingjian wants to merge 31 commits intoHi-PACE:developmentfrom
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huixingjian
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Co-authored-by: Alexander Sinn <[email protected]>
…pace- into huixingjian/desable_laser_evo
copy laser to next step
huixingjian
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AlexanderSinn
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Feb 17, 2026
MaxThevenet
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Feb 18, 2026
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Thanks for this PR! Looks good, but could you check the naming as suggested below?
| Whether the beam particles are pushed along the z-axis. The momentum is still fully updated. | ||
| Note: using ``do_z_push = 0`` results in unphysical behavior. | ||
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| ``<beam name>.accelerate`` (`bool`) optional (default `1`) |
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Is there any reason not to use this name? Would be more consistent with option above.
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| ``<beam name>.accelerate`` (`bool`) optional (default `1`) | |
| ``<beam name>.do_uz_push`` (`bool`) optional (default `1`) |
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| * ``lasers.solver_type`` (`string`) optional (default `multigrid`) | ||
| Type of solver for the laser envelope solver, either ``fft`` or ``multigrid``. | ||
| Type of solver for the laser envelope solver, either ``fft``, ``multigrid`` or ``disable``. |
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| Type of solver for the laser envelope solver, either ``fft``, ``multigrid`` or ``disable``. | |
| Type of solver for the laser envelope solver, either ``fft``, ``multigrid`` or ``off``. |
| getWithParser(pp, "injection_type", m_injection_type); | ||
| queryWithParser(pp, "duz_per_uz0_dzeta", m_duz_per_uz0_dzeta); | ||
| queryWithParser(pp, "do_z_push", m_do_z_push); | ||
| queryWithParser(pp, "accelerate", m_acc_z); |
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Likewise
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| queryWithParser(pp, "accelerate", m_acc_z); | |
| queryWithParser(pp, "accelerate", m_do_uz_push); |
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This PR introduces two new options,
beams.do_uz_pushandlasers_solver_type = "disable", which respectively disable beam particle acceleration and laser evolution. These features are particularly useful for nonlinear beam matching studies in regimes with strong ion motionThe implementation has been tested on Maxwell using a LPA simulation with a 200 pC, 500 GeV electron beam. The results demonstrate successful transverse matching while preserving the longitudinal phase-space distribution.