An element to establish the total charge of a beam. Active on first pass only. If given, overrides all charge
specifications on other elements.
Parallel capable? : yes
GPU capable? : no
Back-tracking capable? : yes
| Parameter Name | Units | Type | Default | Description |
| TOTAL | C | double | 0.0 | total charge in beam |
| PER_PARTICLE | C | double | 0.0 | charge per macroparticle |
| ALLOW_TOTAL_CHANGE | NULL | long | 0 | If nonzero, allow total charge to change while tracking even if number of particles does not change. Useful for ramping of charge. |
| GROUP | string | NULL | Optionally used to assign an element to a group, with a user-defined name. Group names will appear in the parameter output file in the column ElementGroup |
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This is the preferred way to assign charge to a beam, which is needed for the use of CSR simulation (CSRCSBEND, CSRDRIFT), wake simulation (WAKE, TRWAKE, LRWAKE, ZLONGIT, ZTRANSVERSE), rf mode simulation (RFMODE, TRFMODE, FRFMODE, RTRFMODE), space charge simulation (LSCDRIFT, RFCW, SCMULT), and intrabeam scattering simulation (IBSCATTER).
CKICKER