Simulation of photon intensity distributions to facilitate the design of beamlines at accelerator-based IR/THz sources

摘要

Simulations with the software Synchrotron Radiation Workshop (SRW) for the ANKA infrared (IR) beam-lines IR1 and IR2 have shown, that the far-IR and terahertz (THz) edge radiation can interact with the vacuum chamber walls very close to the electron beam. Unfortunately SRW cannot compute wavefronts at large angles of observation and at a close vicinity to the source. As we need to take into account these perturbations for the further propagation of the radiation through the entire beamline optics to the experimental station, we have started to develop our own code.