[ Identification | Description | Input parameters | Output parameters | Links ]
Chopper_simple
ComponentIdeal model of a chopper situated at Z=0. If a photon arrives at the chopper plane at a time of t = [t0 +-n*T: t0 +-n*T +tau], where T is the period of the chopper, t0 the initial delay and tau the opening time of the chopper, it is left untouched - otherwise it is ABSORBed. If on a continous source the isfirst parameter may be used. In this case the photon time is _defined_ by the chopper. In other words no photons are absorbed, the photon time is merely sampled within the chopper window. t_rise is the rise-time of the chopper opening giving a trapezoidal shape. Limitations: this component does not take chopper geometry into account. If isfirst only samples in the first chopper opening window.
Name | Unit | Description | Default |
t0 | s | Initial delay of the opening time | 0 |
T | s | Period of the chopper | 1 |
tau | s | Opening time of the chopper | 0.1 |
xwidth | m | height of the chopper opening | 0.1 |
yheight | m | width of the chopeper opening | 0.1 |
isfirst | is the chopper the first chopper on a continous source. | 0 | |
t_rise | 0 | ||
tjit | Timing jitter in terms of the opening time tau. For each ray the opening window will be shifted by a random amount within t=[-tjit*.5*tau,tjit*.5*tau] | 0 |
Name | Unit | Description | Default |
Chopper_simple.comp
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[ Identification | Description | Input parameters | Output parameters | Links ]
Generated on 2021-08-13 08:57:53