Energy Calibration of the ReA3 Accelerator by Time-of-Flight Technique

We report on a simple method to perform an absolute calibration of the magnetic beam analyzer of the reaccelerator ReA3 at the National Superconducting Cyclotron Laboratory. The method is based on the time of flight between two beam stoppers 7.65 m apart. Based on two independent time-of-flight measurements at three different beam energies, the beam analyzer magnet is calibrated with an accuracy of 0.12 %, corresponding to a beam energy accuracy of 0.24 %.