This article presents a novel method for determining the three-dimensional location of fluorescent particles that is suitable for three-dimensional particle tracking velocimetry measurements in microfluidic flows. This method determines the depth of a particle by inserting a convex lens and axicon into the optical path between a microscope and camera. For particles close to the focal plane, thi...

Detailed studies of the resolution of a EUDET-type beam telescope are carried out using the DATURA beam telescope as an example. The EUDET-type beam telescopes make use of CMOS MIMOSA 26 pixel detectors for particle tracking allowing for precise characterisation of particle sensing devices. A profound understanding of the performance of the beam telescope as a whole is obtained by a detailed ch...

General Particle Tracer (GPT) is a particle tracking code, which includes 3D space charge effect based on a nonequidistant multigrid Poisson solver or a point-to-point method. It is used to investigate beam dynamics in ERL and FEL injectors. We have developed a new routine to simulate coherent synchrotron radiation (CSR) in GPT based on the formalism of Sagan [1]. The routine can calculate 1D-w...

The code is described in more detail in the Proceedings of PAC05 [1]. Below a brief summary of the code features is given. Lifetrac is a weak-strong beam-beam code that was originally created for simulating equilibrium distributions in electron-positron colliders (circa 1995). Eventually, the author added the functionality to simulate non-equilibrium distributions (2003-2004), making it a conve...

The motion of beams in particle accelerators is dominated by a plethora of non-linear effects, which can enhance chaotic motion and limit their performance. The application of advanced non-linear dynamics methods for detecting and correcting these effects and thereby increasing the region of beam stability plays an essential role during the accelerator design phase but also their operation. Aft...

Within the Thermal Wave Model framework a comparison among Wigner function, Husimi function, and the phase-space distribution given by a particle tracking code is made for a particle beam travelling through a linear lens with small aberrations. The results show that the quantum-like approach seems to be very promising. to appear in Phys. Lett. A E-mail: [email protected] Galluccio@axpna1...

The TESLA linear collider incorporates an X-ray SASE FEL which demands challenging electron beam parameters (typically transverse emittance of 1.6 mm-mrd and peak current of 5 kA). For a realistic electron beam distribution at the entrance of the undulator, tracking has to be done from the cathode through the whole accelerator. Non-Gaussian beam profiles have to be taken into account as well as...

The Bmad software library has proved to be a useful tool for accelerator simulations owing to its modular, objectoriented design. It is now used in a number of design, simulation, and control programs at Cornell’s Laboratory for Elementary-Particle Physics. Work is ongoing to expand Bmad in a number of directions. One aim is to have a complete framework in order to simulate Cornell’s Energy Rec...

Treatment of targets that move during the irradiation with a scanned particle beam leads to deterioration of the dose distribution [1]. This dose deterioration results from interference of target motion and scanned beam, so called interplay. Apart from beam tracking [2] and gating [3] rescanning [4] can be used to mitigate the impact of motion. Rescanning mitigates interplay effects by multiple...

In this paper, we investigate the effects of auto-tracking subsystem together with different beam divergences on SNR, BER and stability of FSO communication links. For this purpose we compute the values of power, SNR and BER on receiver, based on analytic formula of Gaussian beam on receiver plane. In this computation the atmospheric effects including absorption, scattering and turbulence are c...