Orbit Response Measurement for BPM Calibration

Your tasks

The Free Electron Laser of the Paul Scherrer Institute (SwissFEL) transports a relativistic electron beam over 500 m with micron precision in the transverse position. Beam Position Monitors (BPMs) are used to determine the transverse position, but the 8PM signal has only been pre-calculated before installation in the SwissFEL beamline. lt still requires a dedicated machine study to compare the theoretical orbit oscillation with the measurement to improve upon the resolution. The model dependent prediction can be cross-checked with a few BPMs, which has been calibrated by external movers independently, and then extrapolated over the entire machine. Your task is to develop the measurement routine, carry out the measurement during machine development shifts and supply the BPM-group with the correct calibration factors.

Your profile

  • Student in physics and you are at least in your penultimate year of master studies
  • Interest in experimental measurements as well as in simulations
  • Open-minded person, communicative, and you enjoy working in an international team

We offer

Our institution is based on an interdisciplinary, innovative and dynamic collaboration.

The contract will be limited to 3 months.

For further information please contact Dr Sven Reiche, phone +41 56 310 51 19.

Please submit your application online for the position as a Trainee (index no. 8122-T2).

Paul Scherrer Institut, Human Resources Management, Sabrina Orteca, 5232 Villigen PSI, Switzerland.